Bearing Ring

A bearing ring is an annular part of a radial rolling bearing with one or several raceways.

Bearing rings are divided into: bearing inner ring, bearing ring with raceway on the outer surface; bearing outer ring, bearing ring on the inner surface of the raceway; tapered inner ring, inner ring of tapered roller bearings; tapered outer ring, tapered outer ring outer ring of roller bearings; double raceway tapered inner ring, double raceway tapered roller bearing inner ring; double raceway tapered outer ring, double raceway tapered roller bearing outer ring; wide inner ring, in A bearing inner ring widened at one or both ends to improve the guidance of the shaft in its bore or to provide additional locations for mounting fasteners or seals; a keyed inner ring, a grooved ball bearing inner ring with all or part of the shoulder removed ; Locked outer ring, a grooved ball bearing outer ring with all or part of the shoulder removed; Stamped outer ring, stamped from a thin sheet metal, sealed at one end (sealed stamped outer ring) or open at both ends, generally directed toward the center roll Outer ring of needle bearings; flanged outer ring, bearing outer ring with flanges; self-aligning outer ring, outer ring with spherical outer surface to accommodate permanent angular displacement between its axis line and the bearing seat axis line ; Self-aligning outer race, used for aligning the ring between the outer ring and the seat hole, has a spherical inner surface that matches the spherical outer surface of the outer ring; outer spherical surface, the outer surface of the bearing outer ring is a part of the spherical surface; The front rib of the conical outer ring, the rib on the front of the raceway of the conical outer ring, is used to guide the roller and bear the thrust of the large end face of the roller; the middle retaining ring, the bearing ring with double raceway, such as the double raceway cone The middle integral rib of the inner ring.

Production steps of bearing rings

  1. Bearing ring forging: If over-burning, overheating, and internal cracking into reticulated carbides occur during the forging process, the toughness and strength of the ring will be reduced. Therefore, it is necessary to strictly control the processing temperature, cyclic heating and post-forging heat dissipation conditions (such as spray cooling), etc., especially after the final forging of larger varieties of ferrules, the temperature is above 700 ℃, and they should not be stacked and placed.
  2. Heat treatment of bearing rings: Close monitoring of heat treatment equipment is an important work in the workshop. Monitoring equipment reliability. Important temperature control equipment such as instruments and thermocouples must be closely monitored to ensure accurate and reliable measurement data; those with errors exceeding the standard should be replaced in time, and it is strictly forbidden to operate with illness.
  3. Monitoring of bearing ring grinding process. The finished imported bearing rings are not allowed to have grinding burns and grinding cracks, especially the matching surface of the inner ring screwdriver must not have burns. If the ferrules are pickled, they should be fully inspected, and the burnt products should be removed. Those with severe burns that cannot be repaired or those that fail to be repaired should be scrapped. The ferrules with grinding burns are not allowed to enter the assembly process.
  4. Bearing ring identification management, after the steel is put into storage and before the ring grinding, each process must be strictly managed, and strictly distinguish between GCR15 and GCR15SIMN two different materials and products.

Depending on the application and purpose of the LDB large diameter bearing, different materials are used for the bearing rings. These standards are made of tempered alloy steel and are specified by our own company standard (LN), derived from DIN EN 10083-1. For applications requiring additional properties, special materials such as chrome-nickel steel for low temperature environments are used.

The chemical composition, the handling of the material during the formation of the raw material and the mechanical properties of the base material are specified in the company standards. To ensure consistent quality, each raw material is monitored during manufacturing according to the testing criteria defined in the LDB standard.

Regular audits of suppliers ensure compliance with delivery specifications.

Various certificates are available for raw materials according to DIN EN 10204, as required by the scope of testing and documentation.

On request, provide all documentation required for component or system certification or classification.