• About Us

About LDB Company

Luoyang Longda Bearing Co., Ltd. was established in 1999, located in China bearing production base – Luoyang, Henan province, registered trademark LDB, is an enterprise specializing in the design, development, manufacture and sales of precision slewing bearings (slewing rings) and precision slewing drives.

The company has nearly 30 sets of various production and technical inspection equipment, the processing range is from 150mm to 4000mm in diameter, covering the production and manufacture of various standard and non-standard specifications of slewing bearings. The company has nearly 60 employees and a group of experienced slewing bearing designers and technicians.

The company has successively won the honorary titles of high-tech enterprise, municipal enterprise R&D center, Henan science and technology small and medium-sized enterprise, and exhibition enterprise of Zhongyuan Equity Exchange Center.

The company passed the ISO9001:2015 quality management system certification of the German TUV certification company in 2019, and implements strict process control and quality control throughout the production process from the incoming raw materials to the finished product leaving the factory.

90% of our products are exported to 73 countries and regions around the world, mainly to Europe, Asia, America, Oceania and other regions. The company has agents in India, Iran, Turkey, Russia and other places.

The company’s products are widely used in industrial robots, automatic guided vehicle (AGV) steering wheels, laser cutting machines,mist cannon trucks, aerial work platforms, medical equipment, solar power generation equipment and other fields.

The spur gear slewing drive independently developed by the company is widely used in industrial welding robots, palletizing robots, industrial automation and other fields.

The company’s partners include the Dutch truck manufacturer Terberg Group, the Japanese agricultural machinery manufacturer Kubota, the French FASSI Group, the Belgian forklift parts supplier TVH, Turkish steel mills, Zoomlion, Jiangshan Heavy Industry, Beijing Aerospace and other enterprises.

Luoyang Longda Bearing Co., Ltd. adheres to the corporate vision of “Elaborately Manufacture, Serve The World”, dedicated to providing users with high-quality products and a full range of services, the company’s development goals are: to become an internationally renowned manufacturer of slewing bearings and slewing drives.

Technical Certification


  • Pre-sale:

    We produce and process according to the model selected by the customer, and we can also customize the product according to the actual demand, or upgrade the existing rotary structure of the host.

  • Sale:

    · Progress control: The company has established a standard production management system in accordance with the requirements of the ISO9001-2015 international quality management system. Each production process is strictly controlled in accordance with the management system to ensure that the product can be completed within the agreed time.

    · Quality control: The company conducts product quality control in strict accordance with the requirements of the ISO9001-2015 international quality management system. Every processing procedure from raw materials to finished products is tested, and detailed written records and reports are formed to facilitate each The quality of a product can be controlled and tracked.

    · Packing and delivery: The products that pass the inspection must be cleaned, greased, coated with anti-rust oil, and packed, and then packed into fumigation-free wooden boxes, and logistics and transportation are arranged according to customer requirements.

  • After-sales:

    · Warranty time: Our product warranty time is 12 months.

    · Installation consultation: In order to better ensure the normal operation of the product and answer questions raised by users in a timely manner, our engineers can provide technical consultation services such as installation and maintenance during the installation and use of the product.

    · Satisfaction survey: The company has special personnel responsible for receiving and collecting user complaints and consultation information to ensure that the requirements and problems raised by users can be dealt with in a timely manner, and the processing conditions are tracked. Regularly conduct satisfaction surveys to users, and establish user files to record product usage, so as to provide a basis for future product quality improvement. We will continue to work hard, keep improving, and provide customers with satisfactory products and services.

Our products have been exported to 73 countries and regions

Market Area

Area Countries and regions
Asia Oman, Afghanistan, Saudi Arabia, Syria, South Korea, Japan, Thailand, Malaysia, India, Indonesia,  Iran, Pakistan, United Arab Emirates, Philippines, Lebanon, Bangladesh, Singapore, State of Qatar, Vietnam.
European Italy, Germany, Spain, Netherlands, Czech republic, Slovakia, Belgium, Macedonia, UK, Bosnia and herzegovina, Finland, Estonia, Portugal, Turkey, Ukraine, Russia, Lithuania, Latvia, Slovenia, Romania, Norway, Poland, Sweden.
Latin America Brazil, Uruguay, Guyana, Chile, Argentina, Peru, venezuela
North America USA, Mexico and Canada
Oceania Australia, New Zealand
Africa Egypt, Nigeria, South Africa
Total:  73 countries and regions