Product introduction

High-precision bearings are bearings with high requirements in terms of precision, performance and quality. The following are some characteristics, application fields, manufacturing processes and domestic manufacturers of high-precision bearings:

Feature

High precision：The manufacturing process is strictly controlled, and multiple processes are processed and screened to ensure that the dimensional accuracy of the inner and outer rings, balls, and other components of the bearing meets the requirements, meeting the demand for high-precision operation.

High speed capability：The inner and outer rings and rolling elements have high matching accuracy, and high-quality materials and advanced lubrication technology are used to reduce the running friction coefficient, which can withstand high-speed rotating loads and further improve the speed capacity. For example, in high-speed motors, high-precision bearings can ensure stable operation of the motor at high speeds.

High load-bearing capacity：The contact area between the rolling element and the inner and outer rings is large, and the contact surface is precision hardened to improve the bearing capacity of the force, so that the equipment can operate stably under extreme conditions. Like in heavy machinery, large machine tools and other equipment, high-precision bearings can withstand large loads.

Low vibration and noise：By optimizing the design and manufacturing process, the vibration and noise during bearing operation can be effectively reduced, and the running stability and comfort of the equipment can be improved. For example, it is widely used in vibration and noise-sensitive equipment such as precision instruments and medical apparatus.

High stability and reliability：The use of high-strength, high-rigidity materials, through special structural design and heat treatment processes, enhances the hardness and fatigue strength of bearings, reduces deformation and vibration during operation, and ensures the stable and reliable operation of equipment, prolonging service life.

Application field：

Machine tool industry：High-precision machine tool spindle bearings require high-precision grades, generally reaching or exceeding P5 level. In more high-end numerical control machine tools, machining centers and other equipment, even P4 or P2 ultra-precision bearings are required. Common angular contact ball bearings, tapered roller bearings, double-row cylindrical roller bearings, thrust angular contact ball bearings, etc. are used.

Aerospace：Aircraft engines, landing gear, wings, and other key components require high-precision bearings to ensure their reliability and accuracy, and to withstand complex loads and harsh working environments.

Automotive industry：It is used in key parts such as automotive engines, transmissions, and steering systems, such as crankshaft bearings for engines and gear shaft bearings for transmissions, which are crucial to the performance and reliability of automobiles.

Medical apparatus：In medical apparatus such as CT machines, nuclear magnetic resonance equipment, and surgical robots, high-precision bearings ensure the accurate movement and stable operation of the equipment, providing accurate information for diagnosis and treatment.

Electronic equipment manufacturing industry：In high-end electronic equipment such as lithography machines and chip manufacturing equipment, high-precision bearings are used to ensure high-precision motion control of the equipment, which has a significant impact on the accuracy and quality of chip manufacturing.

Robotics：The joints of robots require high-precision and high-reliability bearings to achieve flexible and accurate movement and meet various complex motion requirements.

Manufacturing process：

Advanced processing technology：The use of single-machine outer ring outer diameter grinding and single-machine grinding of outer diameter, the inner ring also increases the single-machine inner and outer diameter grinding, to avoid the shortcomings of the traditional outer diameter through grinding method with weak roundness guarantee ability, and to ensure the consistency of geometric accuracy and dimensional accuracy of parts processing. For example, Shandong Youmeite Bearing Co., Ltd. adopts this new grinding method to improve product accuracy.

High-precision detection methods：Equipped with high-precision testing equipment, such as three-coordinate detectors, roundness meters, roughness meters, etc., to comprehensively inspect the size, shape, and surface quality of bearings to ensure that product quality meets high-precision requirements.

Stringent quality control system：In the production process, from raw material procurement, processing and manufacturing to finished product testing, every link is strictly controlled in accordance with Quality Standards to ensure product stability and reliability. For example, through ISO and other quality system certifications, the production process is fully monitored and managed.

Fine assembly process：Adopt advanced assembly technology and equipment to ensure the assembly accuracy and matching accuracy of each component of the bearing, and improve the overall performance of the bearing. For example, during the assembly process, control the bearing's clearance, preload and other parameters to achieve the best state.