What should I do if the spur gear slewing drive shakes? Shaking causes and solutions

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Spur gear slewing drive may encounter various problems during use. Generally, it can be used after adjustment. Shaking is also one of the common problems among many problems. Shaking during drive operation may affect the overall stability of the equipment. What should I do if the spur gear slewing drive shakes? Let’s work with the spur gear drive manufacturer to understand the reasons and solutions for the shaking of the spur gear rotation drive.

Causes of shaking of spur gear slewing drive

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1. Excessive bearing wear: The bearing has been working for a long time, and the bearing gap will be too large or unbalanced, which will cause the bearing to generate heat and friction. The rotor and the stator will be afraid of friction, which will directly damage the bearing. The sliding bearings are prone to vibration, because the viscous effect of the lubricating oil will cause the shaft to float, and this can also be related to the weight of the bearing. If the weight of the bearing is larger, the wear will be faster.

2. High vibration of the frame: In some cases, excessive vibration of the frame may also have an impact. The vibration frequency of the frame can be said to be the rotation speed of the spur gear. It may be a problem with the frame design, which may cause an unstable state in operation.

3. Rotor mechanical imbalance: The imbalance mentioned here refers to the imbalance of the rotor in a static state and the imbalance in the case of rotation. The rotor deviates from the axis and deflection occurs under the action of centrifugal force, resulting in abnormal vibration.

4. Rotor parts are loose: several parts of the motor rotor: commutator, magnetic poles, belt pulleys, etc., these looseness will also occur when the spur gear rotary drive is used for a long time. Generally, in this case, the rotor will have noises, and these situations will occur. It should be dealt with as soon as possible, because the consequences will become more and more serious over time.

5. Leakage of the drive joint surface: Leakage on the joint surface of the reducer will cause oil shortage, oil cut, and increased wear of the gear meshing surface, shaking, and even seizure welding or breakage may occur in severe cases, resulting in equipment accidents.

6. Drive out of adjustment: When the calibration line between the motor and the driver in the gear reducer is not good, and vibration is prone to occur, adjust the calibration line and reinstall the connection between the driver and the motor, so as to stabilize the rotation of the motor bearing.

7. Rotor mechanical imbalance: The imbalance mentioned here refers to the imbalance of the rotor in a static state and the imbalance in the case of rotation. The rotor deviates from the shaft center and deflection occurs under the action of centrifugal force to produce abnormal vibration.

SDE-PDE Series Slewing Drive

The spur gear rotation drive shaking solution

1. Bearing wear may need to be filled with lubricating oil and continue to be used according to the wear condition, or choose to replace the bearing when the wear is severe.

2. The vibration of the bearing frame may be a problem in the design of the slewing drive, because the vibration frequency of the base is basically the same as the rotational frequency of the bearing. Design problems can be adjusted and resolved by contacting the manufacturer’s after-sales service. For example, product design problems within the warranty period can require the replacement of machinery and equipment. The straight-tooth drive produced by our Luoyang Longda Bearing has been researched and optimized for a long time, and the structure and product quality of the product design are reliable.

3. If the transmission is out of adjustment, adjust the calibration line and reinstall the connection between the driver and the motor, so that the rotation of the motor bearing can be stabilized.

4. The mechanical imbalance of the rotor may be due to the deviation of the rotor from the axis. The position of the rotor can be readjusted, or the design of the base can be considered. Generally speaking, the base can absorb the shock or vibration of the equipment and has a certain adhesive force. If it recurs after adjustment, only replace the base.

5. The sealing gasket can be replaced or the sealant can be applied to solve the shaking problem caused by leakage of the joint surface.

The above are the specific reasons and solutions for the shaking of the spur gear slewing drive. I hope to help you. In addition, if you have other questions when using the spur gear slewing drive, you are welcome to inquire us at Luoyang Longda Bearing Co., Ltd. We have many years of experience. The production experience of slewing reducer, slewing ring, spur gear slewing drive, if you have any needs, please feel free to inquire.

What are the oil lubrication methods for slewing bearings?

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The slewing bearing needs to be lubricated during use and storage. The common lubrication methods are grease lubrication and oil lubrication. The medium for grease lubrication is grease, and the oil lubrication is lubricating oil. Then, for the turntable In terms of bearings, what are the benefits of using oil lubrication? What are the oil lubrication methods for slewing bearings? The following is a summary made by the editor for everyone, let’s take a look.

The benefits of oil lubrication for slewing bearings

The slewing bearing is lubricated by oil lubrication, which can achieve good cooling and cooling effects. This oil lubrication method is very suitable for bearings with relatively high operating temperatures. The viscosity of the lubricating oil used in the bearing is about 0.12 to 0.2cm/s. If the bearing load is high and the working temperature is high, choose a high-viscosity lubricating oil, and a rolling bearing with a fast speed is suitable for a low-viscosity lubricating oil. But it should also be noted that oil lubrication requires that the bearing must be kept in a good sealing state to avoid leakage of lubricating oil. In addition, oil lubrication requires a more complicated oil supply device, so you must pay more attention to the operation and use, and pay attention to the use and maintenance of the bearing.

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The method of lubricating slewing bearing oil

1. Oil bath lubrication

Oil bath lubrication is a relatively common lubrication method. It is suitable for the lubrication of low and medium speed bearings. Imported bearings are partially immersed in the groove, and the lubricating oil is picked up by the rotating bearing parts and then flows back to the oil groove. The oil level should be slightly lower than The center of the lower rolling element.

2. Dripping oil lubrication

Drip lubrication is suitable for imported bearing parts that require a quantitative supply of lubricating oil. The amount of dripping oil is generally one drop every 3-8 seconds. Excessive oil volume will cause the bearing temperature to increase.

3. Circulating oil lubrication

Use an oil pump to deliver the filtered oil to the bearing components, and then filter and cool the lubricating oil after passing through the bearing for use. Because circulating oil can take away a certain amount of heat and cool the bearing, this method is suitable for bearing parts with higher speeds.

4. Spray lubrication

Dry compressed air is mixed with lubricating oil through a sprayer to form oil mist. Injecting into the bearing, the airflow can effectively cool the bearing and prevent the intrusion of impurities. This method is suitable for the lubrication of high-speed and high-temperature bearing components.

5. Jet lubrication

Use an oil pump to inject high-pressure oil into the bearing through a nozzle, and the oil injected into the bearing flows into the oil groove through the other end of the bearing. Imported bearings have higher rated load, lower noise, greatly reduce warranty costs, increase machine running time and other advantages; when distinguishing the authenticity of such imported bearings, you can touch the steel stamp on the bearing to make it faster and more efficient. Accurately distinguishing, this kind of steel seal will not feel tactile if you touch it with your hand, but you can feel the presence of the steel seal by gently touching it with your fingernail. When the bearing rotates at a high speed, the rolling elements and the cage also make the surrounding air form an airflow at a relatively high rotation speed. It is difficult to send the lubricating oil to the bearing by the general lubrication method. At this time, the lubricating oil must be sprayed by high-pressure injection. In the bearing, the position of the nozzle should be placed between the inner ring and the center of the cage.

The above is the slewing bearing manufacturer’s summary of the oil lubrication methods for slewing bearings, the benefits of slewing bearing oil lubrication and all the common methods. We understand that oil lubrication can help the bearing achieve a good cooling and cooling effect. The oil lubrication methods include oil bath lubrication, drip lubrication, circulating oil lubrication, spray lubrication, jet lubrication, etc. You can choose according to your own reagent needs

How often is the slewing bearing maintained and how to maintain it?

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After the slewing bearing is used for a period of time, it is inevitable that there will be problems such as noise, vibration, and temperature rise. In this case, if you want to extend the service life of the bearing, you need to maintain the slewing bearing regularly. Then, how long is the slewing bearing? Maintenance once? What is the maintenance method? What problems should be paid attention to during maintenance? Next, the slewing bearing manufacturer will introduce the maintenance cycle and method of the slewing bearing to everyone, and I hope it will be helpful to everyone.

Slewing bearing maintenance cycle

How often is the slewing ring bearing maintained? The maintenance time of slewing bearings is the same as that of ordinary bearings. Theoretically, they can be used for 20000-80000 hours, but the specific life depends on the wear during use, work intensity and later maintenance, etc., among which maintenance is an important part of prolonging the service life of the bearing. ring.

Maintenance method of slewing bearing

Slewing Bearings

1. Clean the slewing bearing

Cleanliness has a considerable impact on the life of the slewing bearing. The higher the cleanliness of the bearing, the longer the life. Lubricants with different cleanliness have no effect on the life of the bearing. Therefore, improving the cleanliness of the lubricating oil can prolong the life of the bearing. In addition, if the dirt particles in the lubricating oil are controlled below 10um, the life of the bearing will also increase several times. So, how should the specific bearing cleaning be done? We then look down.

(1) The cleaning of the bearing is divided into rough cleaning and fine cleaning, and a metal grid can be placed on the bottom of the container in use.

(2) For rough washing, use a brush to remove grease or adhesions in oil. At this time, if the bearing is rotated in oil, be careful that the rolling surface may be damaged by foreign matter.

(3) During the fine washing, slowly rotate the bearing in oil, which must be carried out carefully. Commonly used cleaning agents are neutral non-water-containing diesel or kerosene, and sometimes warm lye etc. are used as needed. No matter what kind of cleaning agent is used, it must be filtered frequently to keep it clean. After cleaning, immediately apply anti-rust oil or anti-rust grease on the bearing.

2. Derusting bearings

(1) Soaking method: Some small items are immersed in anti-rust grease, and the cross tapered roller bearing is coated with a layer of anti-rust grease on the surface. The thickness of the oil film can be achieved by controlling the temperature or viscosity of the anti-rust grease.

(2) Brushing method: used for outdoor construction equipment or products with special shapes that are not suitable for immersion or spraying. When brushing, it is necessary to pay attention not to accumulate, but also to prevent leakage.

(3) Spray method: Some large anti-rust objects cannot be oiled by immersion method. Bearings are generally sprayed in clean air with filtered compressed air with a pressure of about 0.7Mpa. The spray method is suitable for solvent-diluted anti-rust oil or thin-layer anti-rust oil, but complete fire protection and labor protection measures must be adopted.

3. Bearing lubrication

(1) Manual lubrication: This is a relatively primitive method. When the lubricating oil of the bearing is insufficient, use an oiler to supply oil. However, this method is difficult to maintain a certain amount of oil. It is more dangerous to forget to refuel due to negligence. It is usually only used in light-load, low-speed or intermittent sports. It is recommended to install a dust cap or ball valve on the refueling hole and use it. Felt, cotton, wool, etc. are used as filter devices.

(2) Dropping point lubrication: usually used for light-load and medium-load bearings with a peripheral speed of less than 4~5m/s. A roughly fixed amount of lubricating oil is supplied from the container through holes, needles, valves, etc., the more classic is dripping oil Cup, the amount of dripping oil varies significantly with the viscosity of the lubricating oil, the bearing clearance and the position of the oil supply hole.

(3) Oil ring lubrication: The lubricating oil from the oil pool is brought to the bearing by the ring that is hung on the shaft and can rotate (only for the lubrication method of the horizontal shaft), suitable for medium and high speed shaft diameters greater than 50mm Bearings and oil rings are recommended to be seamless. When the bearing width-to-diameter ratio is less than 2, only one oil ring can be used, otherwise two oil rings are required.

(4) Oil rope lubrication: Relying on the capillary and siphon action of the oil rope to guide the lubricating oil in the oil cup to the bearing, it is mainly used for light-load and medium-load bearings with a peripheral speed of less than 4～5m/s. Can play a filtering role in the whole process.

(5) Oil pad lubrication: Use the capillary action of the oil pad to apply the lubricating oil in the oil pool to the surface of the shaft diameter. This method can keep the friction surface clean, but dust will also block the pores and cause insufficient oil supply. The oil supply of oil pad lubrication is usually only 1/20 of oil lubrication.

Precautions for maintenance of slewing bearings

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1. Precautions for cleaning

(1) Qualified new bearings are not cleaned: New bearings that have passed inspections may not be cleaned under normal operating conditions (motors with more than 2 poles); new sealed bearings are not cleaned.

(2) Clean before oil change: The bearing cap and bearing must be cleaned before oil change. The cleaning is divided into rough washing and fine washing. The oil for rough washing is clean diesel or kerosene, and the oil for fine washing is clean gasoline.

(3) Inspection during cleaning: After the bearing is cleaned, turn it by hand and shake it radially and axially by hand to determine whether it is loose or the gap is too large. Check the gap if necessary. If the ball or roller frame is found to be severely worn, rusted, and metal peeling, it should be replaced.

(4) Wipe dry and grease after cleaning: After the bearing is cleaned and inspected, wipe the cleaning agent (or dry) with a white cloth, and add qualified grease. It is not allowed to add different types of grease in the same bearing.

2. Precautions for rust removal

(1) Selection of derusting liquid: Note that the following acid liquids cannot be used for bearing derusting: sulfuric acid, hydrochloric acid, dilute sulfuric acid, and dilute hydrochloric acid. Because these acid liquids will destroy the good metal parts, these kinds of liquids cannot be used!

(2) Selection of rust removal methods: I have introduced several common rust removal methods above, including soaking method, brushing method, spraying method, etc. You can choose according to the actual situation of the bearing, but no matter which method it is It is necessary to pay attention to the protection of the bearing during operation. The damage to the bearing due to maintenance is more than the loss.

3. Precautions for lubrication

(1) No dust in the surrounding environment when refueling: refuel with clean hands, slowly rotate the entire bearing with one hand, and press the oil into the bearing gap with the middle finger and index finger of the other hand. After adding one side, proceed to the other side to remove excess grease.

(2) Bearing and bearing cap refueling volume: The bearing cap oil volume is 1/2-2/3 of the bearing cap capacity (the highest number of poles of the motor is the upper limit); the bearing oil volume is 1/2-2/3 of the cavity of the inner and outer rings of the bearing ( The number of motor poles is higher than the upper limit).

The above is about how often the slewing bearing is maintained, the maintenance cycle and the entire content of the method. We understand that the general slewing bearing is maintained every 20000-80000 hours. The specific time needs to be determined according to the actual situation. The maintenance method includes regular cleaning, which is effective. Rust, reasonable lubrication, etc. It can be seen that if you want to extend the service life of the slewing bearing, you still need to work harder and maintain it.

What is the manufacturing process of slewing bearings

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Slewing ring bearings are also called slewing bearings. The main structure includes: inner ring, outer ring, rolling elements, and rolling element-guided cages. They are important transmission components in mechanical equipment. They are used in engineering machinery, light industrial machinery, metallurgical machinery, medical machinery, Ship equipment and other industries are widely used. Next, the slewing ring manufacturer will take you to understand the manufacturing process and detailed steps of the slewing ring.

1. Cutting of slewing bearing steel material

The commonly used raw material for slewing bearings is integrally hardened carbon-chromium bearing steel, and the slewing ring is made of surface hardened steel, generally made of 50Mn steel, such as: S48C, 42CrMo, 5CrMnMo. The cylindrical raw material billet transported back from the steel mill is cut according to the size required for processing the bearing. Generally, carbide saw blades should be used for cutting bearing steel, which have high hardness, wear resistance, strength and toughness, heat resistance, corrosion resistance, etc. A series of excellent properties.

2. Slewing bearing billet forging

In the heating furnace, the billet is heated and forged into a round cake shape. The forging link is an important link to ensure the reliability and life of the bearing. After the raw material is forged, the bearing ring blank is formed. At the same time, the organization structure of the raw materials becomes denser and the flow linearity becomes better, which can improve the reliability and service life of the bearing. In addition, the quality of the forging process will directly affect the utilization rate of raw materials, thereby affecting production costs.

Slewing Bearings

3. Slewing ring forged ring

The steel blank is forged into a ring-shaped steel ring using a ring rolling machine. Forging can improve the internal structure of steel and improve the strength, plasticity, impact toughness and other mechanical properties of steel.

4. Rough turning processing

The steel ring after the ring is put into the machine tool, and the rough turning of machining is performed, and various groove raceways are turned out, and the steel ring is fixed on the gear milling machine to cut teeth. The main purpose is to make the shape of the ferrule after the final product the same, creating conditions for the later grinding machine processing.

5. Slewing bearing quenching (heat treatment)

After machining, through quenching operation, the strength and hardness of the steel are improved, and the wear resistance, fatigue strength and toughness of the metal are improved. The heat treatment process is to subject the forged and machined bearing ring to high temperature treatment, which directly affects the uniformity of carburization in the bearing ring, improves the wear resistance and hardness of the bearing, and also affects the reliability and life of the bearing. Important link.

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6. Hole processing of slewing bearing

Drill the mounting hole on the end face of the steel ring. When opening the slewing bearing bearing, determine the center and cutting angle. Choose a drilling machine, hand-held electric drill and hand drill for operation.

7. Fine grinding

Finishing is to trim the fine parts of the bearing roughly formed after the hole is opened to ensure the refinement of the appearance. Finishing has an effect on the rotation flexibility of the bearing and the precision of the bearing surface. Once again, the raceway surface of the steel ring is finished. Modify the deformation caused by the previous process.

8. Slewing bearing assembly operations

Assemble the parts (outer ring, inner ring, roller, cage) processed through various processes, such as inserting steel balls, spacer blocks, and inserting butter sealing strips. Assemble a set of finished bearings according to different technical and precision requirements.

9. Slewing bearing finished packaging

The finished bearing will be coated with anti-rust oil, packaged and packaged. At the same time, it will be sampled and inspected by the factory inspector, and the qualified products will be issued with a certificate, and then sold.

The above is the related content of the slewing bearing manufacturing process and production operation specifications introduced by the slewing bearing manufacturer, including the selection of slewing bearing material cutting, forging, turning processing, heat treatment, grinding processing, assembly and other related content for your reference.

What material is good for the slewing bearing and how should it be selected?

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The material of the slewing bearing directly determines the performance and service life of the bearing. At present, the main structure of bearings on the market is mostly made of bearing steel, which has the characteristics of corrosion resistance and stability. Of course, in addition to bearing steel, there are also metal materials such as aluminum alloy or copper. In addition, the sealing ring and cage of the bearing may be different from the material of the main body of the bearing. The following slewing bearing manufacturers will share what material is good for the slewing bearing.

What material is good for the slewing bearing?

Slewing Bearings

1. Material of ferrule and rolling element

The early slewing bearing used 45# steel, but it was gradually eliminated due to poor modulation performance in the later period. In the current more common processing technology, the slewing bearing rolling element adopts integrally hardened carbon chromium bearing steel. The grade is made of GCr15 or GCr15SiMn steel; the ring of the slewing bearing is made of surface hardened steel, and if there is no special requirement, it is made of 50Mn steel. But sometimes customers also choose to customize other grades such as 42CrMo, 40Cr, etc. The following describes the characteristics of these grades of steel.

(1) As a high-carbon steel, 42CrMo has good quenching and quenching properties and is an ideal material for slewing bearings.

(2) 50Mn has good hardenability and is also a high-quality choice for slewing bearings.

(3) 40Cr is also good in terms of mechanical properties, and it is still in the exploration and practice stage.

(4) GCr15 small slewing bearing can be selected, but it is generally not recommended to use it because of the troubles caused by full quenching in the process of milling and drilling.

2. Material of cage

Cages for slewing bearings have structural forms such as integral, segmented, and isolated block types. The types of cage materials are: low carbon steel stainless steel cage, bakelite/plastic (nylon) cage, brass/bronze/aluminum alloy cage, etc. The spacer type is made of polyamide 1010 resin, ZL102 cast aluminum alloy, etc. .

The characteristics of various material bearing cages are as follows:

(1) Steel bearing cage: It is often cold stamped from 08 and 10 carbon steel sheets. Commonly used steel cage materials include 20, 30, 45, 0Cr18Ni9, 1Cr18Ni9Ti, 40CrNiMo, ML15, ML20, etc., which are commonly used materials in bearing cages, which are solid, durable and stable.

(2) Non-ferrous metal bearing cage: Different from steel, non-ferrous metal has its special properties. For example, aluminum alloy has the characteristics of low density, good thermal conductivity, and good corrosion resistance; copper alloy has good thermal conductivity, low friction coefficient, Features such as good formability and high use temperature; zinc-aluminum alloy has the advantages of low cost, low density, and excellent performance.

(3) Non-metallic cage: non-metallic cage materials mainly include polymers and their composite materials, including nylon, phenolic tape, polytetrafluoroethylene, etc. The polymer material has good strength and elasticity matching, which can effectively reduce the heating and wear of the bearing.

3. Material of sealing ring

Bearing sealing materials are generally commonly used sealing materials, mainly: nitrile rubber, silicone rubber, fluorine rubber, EPDM, fluorobutadiene rubber, polytetrafluoroethylene, polyurethane rubber, acrylic rubber, Anaerobic glue, etc.

The sealing ring of the slewing bearing is made of oil-resistant rubber or NBR nitrile rubber. Compared with nitrile rubber, hydrogenated nitrile rubber has better oil resistance, but if you are not too demanding on oil resistance, use nitrile rubber, because hydrogenated nitrile rubber is relatively expensive. Nitrile rubber also has a certain degree of acid and alkali resistance. However, silica gel should be selected if the requirements for oil resistance and acid and alkali are higher, but its price is higher.

How to choose the material of the slewing bearing

Slewing Bearings

The slewing bearing manufacturer said that the materials used in slewing bearings should be analyzed based on the current level of slewing bearing production technology. It is recommended that the materials of bearing rings, rolling elements, cages, and sealing rings should first consider the following materials.

1. Material of rolling element: GCr15SiMn is generally used for rolling element.

2. Ring material: 50Mn is used for the slewing bearing ring, but sometimes 42CrMo is used to meet the needs of the host in special applications.

3. Cage material: The cage has different structure types such as integral type, segmented type and isolated block type. The integral or segmented retainer adopts 20# steel or ZL102 cast aluminum alloy. The isolating block holder adopts polyamide 1010 resin, ZL102 cast aluminum alloy or QA110-3-1.

4. Sealing ring material: The slewing bearing should be made of oil-resistant rubber, fluorine-containing rubber, and oil-resistant nitrile rubber. The clearance of the slewing bearing The clearance of the slewing bearing is mainly used to compensate the manufacturing error and installation error of the slewing bearing supporting parts and the relevant host assembly parts to ensure the normal use of the bearing. According to the structure type/tolerance class of the slewing bearing and the pitch circle diameter of the rolling element group, the clearance value or the interference amount of the slewing bearing.

The above is the introduction of the slewing bearing manufacturer on the material of the slewing bearing. The bearing materials mentioned are all suitable for slewing bearings, but the specific use environment and performance requirements may have different requirements for the bearing materials. Please follow the actual situation. Choose the situation.

What is a slewing drive, what are its classification and application areas?

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The slewing drive is a slewing reduction mechanism with an integrated driving power source. The slewing ring is used as the main transmission part and the mechanism attachment. Its essence is a permanent magnet motor with large torque. This product is also called a slewing reducer, a slewing drive, Compared with traditional rotary products, it is easy to install, easy to maintain, and save installation space to a greater extent. It is mainly used in beam trucks, aerial work vehicles, industrial robots, photovoltaic power generation, wind power generation, and construction machinery claws, etc. field.

What is a slewing drive

The slewing drive device is also called a slewing reducer, a gear reducer, a turntable reducer, a slewing mechanism, and a slewing drive pair. They are all types of reducers that use slewing bearings as the main support, and the auxiliary drive source uses gears or worms as the driving parts to achieve deceleration and full-circle rotation functions. The composition of the slewing drive mainly includes gears (or worms), slewing bearings, motors, housings, and bases. Slewing drive can be basically divided into single worm drive slewing drive, double worm drive slewing drive and special type of slewing drive.

Classification of slewing drives

WE Series Slewing Drive

1. Classification according to the transmission form

According to the variable transmission form of slewing drive, it can be divided into gear slewing drive and worm gear slewing drive, inheriting the characteristics of gear drive and worm gearing. These two slewing drives can be adapted to medium-high and low-speed applications respectively. In terms of carrying capacity, the performance of the worm gear type is better than that of the tooth type, and when the envelope worm transmission is adopted, its carrying capacity, anti-deformation ability and transmission rigidity are further improved, but the worm gear type slewing drive is more efficient in terms of efficiency. Inferior to the gear type slewing drive, the gear type slewing drive is divided into a straight tooth type slewing drive, a helical tooth type slewing drive, and a volute type slewing drive.

2. Classification according to the openness of the slewing drive

According to the openness of the slewing drive transmission mechanism, the slewing drive can be divided into open and closed. Generally, the open structure is mostly used in applications where the environment is too harsh and the maintenance and maintenance cycle is short. The open structure is more convenient for parts. The inspection, maintenance and maintenance of the product are also more convenient for replacement. However, the closed structure can provide a longer maintenance life cycle in occasions where the environmental conditions have not changed much and the environmental pollution level is below the medium level.

3. Classification according to driving power

According to the structure operation type of the slewing drive, it can be divided into light slewing drive, medium slewing drive and heavy slewing drive. According to the slewing drive’s power, size, dead weight, and application in different fields and machines to achieve its own functions, the light-duty slewing drive is light in weight, and its load and deceleration capabilities are suitable for high-speed (≥10rpm), vibration, impact loads, etc. Working conditions: The medium-sized slewing drive is suitable for high-speed (≥10rpm), vibration, impact load and other working conditions, and the heavy-duty slewing drive is suitable for high-speed (≤3rpm), heavy-duty, and intermittent working conditions.

4. Classification according to the structure of the drive composition

According to the composition of the drive device, it is divided into vertical drive and horizontal slewing drive. Vertical slewing drive means that the traction motor and the traveling wheel are vertical, and the traction motor is upright above the traveling wheel. It has the advantages of small gyration radius, high protection level, convenient maintenance, etc., but high manufacturing cost; horizontal drive means that the traction motor and the traveling wheel are parallel, and the traction motor is mostly coaxial with the traveling wheel and is horizontal. It has the advantages of compact structure, simplicity, and low installation height.

Application of slewing drive

SE Series Slewing Drive

After understanding what the slewing drive is, let’s take a look at its specific application. The slewing reducer can be used in the occasions that require full-circle rotation and variable speed requirements. When it is necessary to achieve larger torque power transmission, higher precision motion transmission, or the selection of a mechanism with a compact body structure and a higher requirement for integration, the slewing drive Is a good solution.

1. The field of beam transport vehicles

The core components of the traditional beam truck slewing assembly mostly use traditional slewing ring products. Compared with the slewing drive, the slewing ring does not have an outer shell, and the corrosion resistance is not ideal, and hydraulic cylinders are used to drive the steering of the tires. In terms of the system, the rotation angle range of the tire is also greatly restricted. The selection of a slewing drive device as a slewing component can not only improve the corrosion resistance of the component, but also increase the steering angle of each group of tires.

2. The field of aerial work vehicles

Aerial work trucks are an important application area of ​​slewing drive. Generally, high-altitude work trucks require the host to have a higher safety factor. The high safety of slewing drive (self-locking of worm gears) is the majority of users choose it as an aerial work platform accessory On the other hand, the worm gear transmission has a larger transmission speed ratio, so that while improving the safety factor of the main engine, a set of worm gear reducers can also be omitted for the main engine, thereby reducing the manufacturing cost of the main engine.

3. The field of photovoltaic power generation

Photovoltaic power generation is an important application field of slewing drive. Solar photovoltaic modules with slewing drive as a rotating part can accurately adjust the rotation and elevation angle of the host according to the different positions of the sun during the day. The solar panels are always in good condition. Receiving angle.

4. Wind power generation

Similar to photovoltaic power generation, the slewing drive can be applied to the yaw part of the wind generator to realize the horizontal 360° rotation of the mechanism, so as to better adjust the receiving angle.

5. The field of construction machinery claws

Construction machinery auxiliary equipment is a new application field of slewing drive. The slewing drive is used as the claw of the rotating mechanism, which makes the design structure more concise, which is more conducive to use and maintenance. At the same time, the worm gear drive has a larger reduction ratio, which makes the claws, etc. The positioning accuracy of construction machinery aids has also been greatly improved.

6. The field of industrial robots

Due to the compact structure and short transmission chain, the slewing drive is easier to achieve higher accuracy and easier to carry out digital control, so it is also widely used in the field of industrial robots. Recently, robots derived from AGV (mobile robots), spot welding robots, welding robots, arc welding robots, laser processing robots, vacuum robots, clean robots and other varieties have slewing drive applications.

Slewing bearing maintenance methods and maintenance precautions

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There are many types of bearings, and the fields and equipment used by each type of bearing will be different. Among them, the slewing bearing can be rotated and used in many equipment and machines. It can be said to be the scope of use. There is a very wide range of bearings, so what are the maintenance methods of the slewing ring and what are the precautions in the maintenance process? The slewing ring manufacturer gave us the following detailed introduction.

Maintenance method of slewing bearing

1. After 100 hours of operation of the slewing ring, the pre-tightening force of the bolts should be checked, and every 500 hours of operation thereafter, sufficient pre-tightening force must be maintained.

2. When the slewing ring is in use, if noise, impact, or power suddenly increases, it should be shut down immediately for inspection, troubleshooting, and disassembly and inspection if necessary.

3. The raceways of the slewing bearing are regularly filled with grease. Generally, the ball bearings are refueled every 100 hours of operation, and the roller bearings are refueled every 50 hours.

4. The tooth surface of the slewing bearing should be cleaned of debris frequently and coated with corresponding grease.

5. The slewing bearing and slewing ring tooth surface should be cleaned up for 10 shifts, and grease should be reapplied.

Matters needing attention in maintenance of slewing bearing

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1. The mounting support of the slewing ring must have sufficient rigidity and the mounting surface should be flat. The support should be subjected to stress relief before assembling the slewing ring. The slewing bearing and slewing ring should be repaired and maintained to reduce the deformation of the slewing ring support. The support should be assembled during assembly. The contact surface with the slewing bearing must be cleaned.

2. When using slewing bearings and slewing bearings, attention should be paid to changes in noise and slewing resistance torque. If there is any abnormality in the maintenance of slewing bearings and slewing bearings, they should be disassembled for inspection. The slewing bearings must be hoisted or stored horizontally, not vertically. Lift or store to avoid deformation.

3. Before the bolts are tightened, the slewing bearing and slewing support should be checked for gear meshing. The meshing condition should meet the requirements of gear accuracy, that is, the contact spots distributed on the tooth surface after the gear pair runs under slight braking. The tooth height direction is not less than 25%, and the tooth length direction is not less than 30%.

4. Slewing bearing and slewing ring In order to ensure the reliability of bolt work and avoid the lack of bolt pre-tightening force, the slewing bearing and slewing ring should be checked for the pre-tightening torque of the bolts after 100 hours and 500 hours of operation of the slewing ring. The pre-tightening torque should be checked every 1000 hours of work.

The service life of the slewing ring during work is directly proportional to the maintenance performed on it. Good maintenance of the slewing ring is also a way to avoid the failure of the slewing ring. The maintenance methods of the slewing ring above are only part of it. Friends who want to know can check our company website. The slewing ring produced by LDB Bearing Co., Ltd. is of good quality, which can effectively improve labor productivity and equipment stability. You are welcome to call our hotline or leave a message at the bottom of the website.

Causes and solutions of common failures of slewing drive devices

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In the current transmission mechanism, the application range of slewing drive is very wide, including the application of products such as high-altitude lifting platforms, fire trucks, marine cranes, and log transfer machines. In a complex application environment, the slewing drive device will inevitably fail due to various reasons. The editor below has sorted out some common faults and solutions of the slewing drive device and hopes to be helpful to everyone.

Common causes of failures of slewing drive devices

Spur Gear Drive

1. Rotary drive string shaft

(1) Shaft tandem caused by broken teeth causing the input shaft to lose its axial restraining force;

(2) The slewing drive driven gear is not tightly fastened to the shaft, resulting in insufficient bearing interference, resulting in a series of shafts, and the steering problem of the slewing drive is affected;

(3) Gear machining deflection;

(4) Gear helix angle error;

(5) Tooth thickness error, uneven wear of tooth surface and premature wear, deformation of tooth back.

The rotary drive oil temperature is too high

(1) The lubricating oil used by the rotary drive is unqualified or has been used for too long;

(2) Too much lubricating oil is used in the rotary drive;

(3) Damage to the slewing drive components, including severe pitting of gears, broken teeth, damage to the bearing cage, inner and outer rings, balls, as well as bearing seizure or severe shaft deformation;

(4) The outside of the rotary drive is covered by debris or dust. When things are piled around or the surface of the machine body has not been cleaned for a long time, the cover of debris or dust may cause incomplete heat dissipation of the reducer and increase the oil temperature;

(5) The cooling device fails or is blocked. If the cooling device is blocked or the cooling device is broken due to long-term work without cleaning the internal pipeline, it will cause the temperature of the rotary drive oil to rise;

(6) Overload operation of rotary drive.

Oil leakage of rotary drive

The oil leakage of the slewing drive: the driving shaft seal ring, the driven shaft seal ring, the slewing drive box, the sight hole cover, the oil drain hole at the bottom, and the oil leakage of the breather. Possible reasons include the fixing bolts are not tightened; there is iron filings on the joint box surface and the closure is not tight; the rotary drive housing is deformed and does not fit tightly and leaks oil; or the ventilator has too much oil.

The slewing drive is overheated or there is noise in the bearing part

(1) Insufficient lubricating oil. When the lubrication oil level is insufficient or the reducer cannot reach a reasonable height due to oil leakage, it may cause high temperature or noise in the bearing part of the reducer;

(2) The bearing cap or seal part is rubbed. When the bearing cover or the sealing part and the connecting part are worn due to improper installation, improper bearing cover or long-term use, the bearing temperature of the reducer may be high or there may be noise;

(3) The bearing is damaged or worn. This item mainly includes damage to the cage of the bearing, wear or deformation of the inner and outer rings, wear or fall of the balls, these reasons will make the reducer unable to work normally;

(4) The bearing clearance is too large or too small. The above symptoms may be caused when the gap between the ball of the reducer bearing and the inner and outer rings, the gap between the bearing inner ring and the shaft, and the gap between the bearing and the end cover increase due to long-term use;

(5) The key handle of the helical gear is loose. The looseness of the helical gear key handle will cause the lack of tight fit between the gear and the shaft, resulting in overheating or noise in the bearing;

Large vibration of the rotary drive body

The possible reasons for the vibration of the slewing drive body include: the anchor screw is loose; the coupler is damaged; the motor screw is loose; the bearing is severely worn; the gear is damaged; the shaft is deformed and out of balance. These conditions may be due to loose screws or coupler failures, bearing wear and other reasons caused by long-term operation.

The bearing of the slewing drive device is broken

The slewing drive bearing cracks mainly occur in the driving shaft bearing. The main reason is that when the driving shaft moves, axial sliding will occur between the bearing inner ring and the rollers, causing the bearing inner ring to move axially, causing the inner bearing rollers to move first. Damage to the bearing.

Damage to the slewing drive gear

Rotary drives have different reasons for broken teeth, gear pitting, spalling, and wear. It can be roughly divided into insufficient contact fatigue strength of the gear; gear material defects, poor precision, inadequate lubrication, impurities in the lubricating oil, and errors in the center distance of the gears.

The slewing drive device has abnormal noise

Possible causes The reducer is overloaded; the load of the working machine is unbalanced; the lubricating oil is deteriorated; the gear tooth surface is worn or the manufacturing quality is poor; the bearing clearance is too large or too small; there is adhesion on the tooth surface; there is debris in the box.

After understanding the causes of common failures of the slewing drive device, the editor briefly introduces the repair methods of the slewing drive device failure. You can check the fault according to the specific situation. If you can’t solve it by yourself, you still need to contact the manufacturer for repair.

Solutions to common failures of slewing drive devices

1. Rotary drive string shaft

It can improve the strength and manufacturing accuracy of the gear, and reduce the roughness value of the gear and shaft. Improving the installation accuracy and tightness of the driven gear and the shaft is mainly to achieve a reasonable interference fit.

2. The rotary drive oil temperature is too high

(1) The staff can perform a detailed inspection on the actual load of the slewing drive and adjust it to the specified value, or it can be replaced with a larger power slewing drive.

(2) Use lubricating oil to remove excess oil in strict accordance with the prescribed amount of oil; or replace the lubricating oil.

(3) Remove the debris and dust around the rotary drive, replace the cooling device to remove the blockage.

3. Oil leakage of rotary drive

(1) The sealing ring gland adopts an open structure or an easily disassembled structure.

(2) Install gaskets and fastening bolts on the sight hole cover.

(3) The oil return hole at the input shaft bearing should be appropriately enlarged.

(4) Replace the deformed drive housing.

(5) Correctly install and correct the oil level of the ventilator.

(6) An annular oil groove is cast or machined on the box surface of the rotary drive base, and there are multiple oil return holes communicating with the annular oil groove. When the reducer is working, once the oil penetrates into the joint box surface, it will enter the annular oil groove, and then flow into the oil tank through the oil return hole, and the lubricating oil will not leak along the box surface to the outside of the reducer housing.

(7) Apply a layer of sealant (such as D05 silicone rubber sealant) on the surface of the box to effectively prevent oil leakage at the surface of the box.

(8) Improve the ventilation cap and inspection hole cover. The internal pressure of the reducer is greater than the external atmospheric pressure is one of the main reasons for oil leakage. If you try to balance the pressure inside and outside the machine, oil leakage can be prevented. Although the reducer has a vent cap, the vent hole is too small, and it is easy to be blocked by dust and oil. Moreover, the inspection hole cover must be opened every time the oil is refueled. Once opened, the possibility of oil leakage will increase once, so that the original place does not leak. Leaks also occurred. The vent hole can be enlarged to equalize the pressure inside and outside.

4. The slewing drive is overheated or there is noise in the bearing part

(1) Check the rotary drive oil level and add lubricating oil;

(2) Tighten the bolts of the bearing and the connecting part, and check the installation of the seal;

(3) Check the bearing and replace it immediately if it is damaged;

(4) If the clearance is not suitable, adjust the bearing clearance, and replace the bearing if it cannot be adjusted;

(5) If the key handle of the helical gear is loose, send it for repair in time;

5. The vibration of the rotating drive body is large

The fault can be eliminated by tightening the foot bolts and the loose screws of the motor; repairing the coupler; replacing the bearing; replacing the gear.

6. The slewing drive bearing is broken

Increase the interference between the inner ring and the shaft, or add a retaining ring on the outer side of the inner ring of the bearing to prevent axial movement.

7. Rotary drive gear damage

Gear damage can be strengthened or the viscosity of the regular lubricant can be used to reduce the loss of lubricant and prevent rust. Clean the gear to keep the surface free of impurities, replace the gear that cannot be repaired, and pay attention to daily maintenance.

8. The slewing drive device has abnormal noise

When there is abnormal noise, you can replace the new lubricant to adjust the bearing gap, check the bearing and do the cleaning work, or replace the new parts in time.

The above is the sorting and summary of the common failure causes and solutions of the rotary drive device. I hope it will be helpful to everyone.

How to distinguish the authenticity of a slewing bearing from its appearance?

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Fake goods are a hateful existence for all walks of life. Many fake and inferior products carry the same outer packaging as the regular brand, but they are among the failures of Jinyu. Not only the product quality cannot be guaranteed, but it may even be in use. During the process, the maintenance and shutdown of the machine caused unpredictable economic losses. So how should we distinguish the true and false of the slewing ring from the appearance when we buy the slewing ring every day? The editor is here today.

First, eight counterfeit methods of slewing ring

Slewing Bearings

1. Material fraud: use iron or carbon steel to make slewing bearings, or repair scrap bearings. The former will cause insufficient hardness of the bearing, and the latter will cause insufficient bearing accuracy. Once these slewing bearings are used on bearings that require high accuracy and bearing hardness, they can easily cause machine failures.

2. Falsified outer packaging: Brand the inferior slewing ring or bearing produced by a small factory with the trademark of a large manufacturer, and counterfeit the inner and outer packaging and the certificate of conformity of the large-brand product. In this way, you can use the brand influence of major manufacturers to broaden the sales of your products.

3. Falsified sales channels: users, distributors, agents, or even counterfeit manufacturers’ spot sales outlets of well-known brands. Let consumers not be able to judge true and false, and make wrong judgments.

4. Pretend to be inferior: use inferior bearings as bearings. In the production process of bearings, defective products will be more or less produced, and they will generally be scrapped. Some black-hearted businesses will pretend to be defective products for sale, but the quality of the products is difficult to guarantee.

5. Accuracy fraud: use ordinary bearings to pretend to be high-precision bearings. Precision bearings have different requirements for the accuracy of various parts during production. Compared with ordinary bearings, the requirements will be relaxed. This way, the common means of posing as precision slewing bearings is also very abhorrent.

6. Fake goods for sale: slewing bearings are usually purchased in large quantities when they are sold. Some merchants take advantage of the buyer’s mentality that they will not check one by one, and sell them together with fake goods, and the product quality will vary. There is a bad situation.

7. Price fraud: In order to increase profits, businesses sell fake goods at high prices and use fake prices.

8. Look at people to deliver goods: When selling slewing bearings, merchants will provide selective supplies according to the seller’s specific conditions. If buyers want cheap goods, they will give fake goods. If they want good quality, they will give genuine goods. I don’t know how to do it. Those who only bargain think that they are taking advantage of it, but they don’t know that they may buy fakes.

Second, the method of identifying the true and false from the appearance of the slewing ring

Slewing Bearings

1. Look at the clarity of the stamp

How to distinguish the authenticity of a slewing bearing from its appearance? Each bearing product will have its brand name, label, etc. printed on the bearing product body. Although the fonts are very small, the products produced by regular manufacturers are printed with steel stamping technology, and they are pressed before heat treatment. Therefore, although the fonts are small, they are deeply recessed and very clear. Normally, the fonts of counterfeit products are not only blurred. Due to the rough printing technology, the fonts float on the surface, and some of them can even be easily erased by hand or have serious manual traces.

2. Listen to the noise inside the bearing

Hold the inner sleeve of the bearing with your left hand, and turn the outer sleeve with your right hand to make it rotate slightly. Listen for noise during the operation of the bearing. Due to the backward production conditions of most counterfeit products and the purely hand-made workshop operation, the bearing body will inevitably be mixed with impurities such as dust and sand during the production process. Therefore, noise or unsmooth operation may occur when the bearing rotates. phenomenon. This is the key to judging whether the product comes from a regular manufacturer’s brand product that has strict production standards and is operated by a machine.

3. See if the surface is clean

Whether there are turbid oil stains on the surface, we should pay special attention to it when buying imported bearings. Since there is still a certain gap between domestic anti-rust technology and foreign advanced manufacturing countries, it is easy to leave thick oil marks when anti-rust treatment on the bearing body, which feels sticky and sticky when touched by hand, while foreign original There is almost no trace of anti-rust oil on the imported bearings. According to industry insiders, particularly careful people can smell a special smell on imported bearings, which is the smell of anti-rust oil.

4. Look at the chamfer

Whether the chamfer of the slewing ring is produced is also closely related to the production technology level of the bearing manufacturer. Therefore, the neat degree of the chamfer can judge the technological level of the bearing. The so-called chamfer of the bearing is the junction of the horizontal plane and the vertical plane. Due to the limitation of production technology, the counterfeit bearing products are not handled satisfactorily at these corners, which we can easily distinguish.

5. Look at the packaging of the bearing

The packaging is divided into inner packaging and outer packaging. After the bearings are manufactured and passed the inspection, they will be cleaned and anti-rust treated, and then placed in the inner packaging to achieve waterproof, moisture-proof, dust-proof, shock-proof, and maintain the quality and accuracy of the bearing And the purpose of facilitating use and sales.

The inner packaging of the bearing is divided into three categories according to the anti-rust period:

(1) Short anti-rust period packaging: The anti-rust period is 3 to 6 months, which is suitable for bearings that are shipped to the same subscriber in large quantities and put into use in a short period of time. The two parties have agreed to use simple packaging based on the principle of ease of use.

(2) General anti-rust period packaging: one year anti-rust period, suitable for general-purpose bearings.

(3) Long anti-rust period packaging: two years anti-rust period, suitable for special and precision bearings.

The inner packaging materials of the bearing include polyethylene plastic tube (box), kraft paper, plain and wrinkled polyethylene composite paper, paper box, polyethylene or polyethylene plastic film, nylon fastening tape or plastic woven fastening tape, waterproof high-strength plastic tape , Burlap bags, etc. All of the above materials need to ensure that the corrosion resistance test of the material is qualified.

How to distinguish the true and false of the slewing ring from the appearance can be judged from the above aspects. In addition, you can judge the approximate price range based on the understanding of the bearing and the market situation of the bearing. As long as you are not greedy and bargaining excessively, you can also confirm the place of purchase. It is difficult to distinguish true from false sources through informal sources, and bearings can basically be bought. The slewing bearings produced by our Kuoyi Longda Bearing Co., Ltd. are all qualified products that have passed quality inspections. If you have any needs, please feel free to inquire.

What are the installation methods of the spur gear slewing drive? And installation precautions

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Spur gear slewing drive is a rotary drive. Due to the different types of drive teeth, it can be divided into straight-tooth rotary drive and helical-tooth drive, both of which are full-circle rotary drive reduction transmission mechanisms that inherit the driving power source. The previous article has already introduced the difference between the spur gear drive and the slew drive. I will not introduce it in detail here. Today, the Lunda bearing manufacturer will give a brief introduction on the installation methods of the spur gear drive. I hope it will be helpful to everyone.

Installation method of spur gear drive

1. Fixed installation with solid shaft

This installation method is to connect the output shaft driven by the spur gear with the metallurgical machinery through couplings, sprockets, gears, pulleys, etc., and the spur gear drives the bottom anchor bolts to firmly install the spur gear drive on the structure On a solid, vibration-free foundation. At present, most spur gear drives can adopt this installation method.

For large spur gear drives, threaded holes should be machined on the body feet to adjust the installation position with adjusting bolts; for the spur gear drive of the luffing mechanism, pins should also be used for locking to prevent movement during installation .

2. Single-point floating installation of hollow shaft

This installation method uses the output shaft driven by the spur gear as a hollow shaft and is connected to the transmission shaft of the working machine through an expansion sleeve. The entire driving device, including the motor, coupling, brake, and reducer, is installed on the support of the transmission device. Seat, and then supported by a ball hinge or bearing.
The installation principle is that the bearing point of the spherical hinge deviates from the center of gravity of the transmission device by a certain distance. In the working state, the bending moment caused by the eccentricity of the support point can be balanced with the bending moment caused by the load of the driving device. Therefore, the transmission shaft is not affected by the theory. Additional force.

3. Hollow shaft suspension installation

In this installation method, the output shaft driven by the spur gear and the metallurgical machinery shaft are connected by an expansion sleeve, and the support is completed by the output shaft and another torsion rod. This installation method is relatively simple, saves floor space, and can reduce the weight of the whole machine, and is suitable for transmission devices that transmit power from a vertical direction.

Spur gear drive installation is a delicate and complex task with high technical requirements. The operating procedures and design data must be strictly observed during operation. The general installation sequence is: equipment leveling and alignment, cleaning and assembly, adjustment and trial operation.

After understanding the installation methods of spur gear drives, the spur gear drive manufacturers will introduce some precautions in the installation of spur gear drives. I hope it will be helpful to everyone.

Precautions for installation of spur gear drive

WE Series Slewing Drive

1. Cleaning and inspection: clean the spur gear drive installation shaft before installation and use, and check whether the installation shaft is bruised or dirty. When the spur gear drive is installed in an inclined manner, ensure that the high position of the gear shaft bearing is lubricated by the gear oil in the box, and ensure that the gas in the box can be discharged from the high position of the box.

2. Keep the mating interface flat: When assembling the spur gear drive with the actuator and the prime mover, the connecting flange should be cleaned and polished to ensure the flatness of the connecting part of the connecting flange, to ensure that it is flush, and all bolts on the flange circumference should be matched. , Fastening.

3. Keep balance: The assembled transmission components (couplings, sprocket) should be kept in rotation balance, so as not to cause impermissible radial force or axial force. The internal thread of the assembly fixture and the shaft end is usually used, and the transmission part is pressed in with a bolt, otherwise it may cause damage to the internal parts of the spur gear drive.

4. Do a good job of leveling: The spur gear drive installation must be rigidly fixed on a solid horizontal foundation or a vertical frame, and the leveling must be done. It is necessary to ensure that the coaxiality of the prime mover, coupling, spur gear drive, and actuator is consistent, so as to avoid additional stress on the input and output shafts and bearings of the equipment and cause damage to the equipment input and output shafts and bearings.

5. Control the shaft gap: the coaxiality of the two connected shaft extensions should be controlled within the range of φ0.1mm, and there should be a gap of 2-8mm between the end faces of the two shaft extensions. The value of the gap depends on the specific equipment connected to the spur gear drive. Depending on the situation, it is necessary to ensure sufficient load transfer capacity and to ensure that the bearings driven by the spur gear are not subject to additional axial force.

6. Add gear oil: The grade of oil should be the spur gear drive value, or the oil equivalent to the oil should be used. And the amount of oil must be correct, and each spur gear drive has a sign with the grade and quantity of oil attached. The oil mirror is a display mirror of the oil level driven by the spur gear. On the side of the spur gear drive, the oil level should reach the upper and lower positions of the middle of the oil mirror when filling oil.

Spur gear drive lubrication and oil injection method

The lubrication effect has a great influence on the spur gear drive. If the lubrication conditions are not good, the heat generated by the spur gear drive will increase and its carrying capacity will decrease. Therefore, the lubricating oil and the amount of oil must be selected correctly to effectively ensure the normal operation of the spur gear drive transmission and prolong its service life.

Under normal circumstances, the lubrication method adopts oil pool lubrication and natural cooling; and for high-power spur gear drive or insufficient thermal power, pressure circulating oil lubrication or additional cooling devices can be used for cooling.

Under normal operating conditions, when the ambient temperature is (0~35)℃, or using circulating oil lubrication, choose medium-duty industrial gear oil 220#; when the ambient temperature is (35~50)℃, it is recommended to select medium-load Industrial gear oil 320#. In addition, the spur gear drive should be replaced with lubricating oil after the first 400 hours of operation.

What are the installation methods of spur gear drive? I believe you already know it. During installation, you can choose a suitable installation method according to the specific conditions of the machine to which the spur gear drive is adapted. Of course, some precautions during the installation process have been introduced by the spur gear drive manufacturer. Up. In addition, if you have any questions about the installation or use of other spur gear drives, you can call us Longda Bearings, and welcome your calls.