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7002C SU-Angular contact ball bearings for precision machinery

  • 7002C SU-Angular contact ball bearings for precision machinery
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Product description Technical parameter
Precision angular contact ball bearing, belongs to the deep groove ball bearing deformation structure, suitable for all kinds of precision machinery selection, this series of bearings can bear radial load and axial load at the same time, can work at a higher speed. The larger the contact angle, the higher the axial load carrying capacity. According to the axial load size, contact angle is mainly divided into C-15 degrees, AC-25 degrees, A-30 degrees, B-40 degrees type structure, small friction coefficient, high limit speed, high manufacturing accuracy, can provide high-speed ceramic ball series bearings and sealed series bearings, cage mainly organic processing window brass cage, steel plate stamping cage, glass fiber reinforced nylon cage (nylon), and phenolic Laminated cloth tube cage (rubber wood), also can provide universal pair and any pair combination bearings. Mainly used in: machine tool spindles, high frequency motors, gas turbines, centrifugal separators, small car front wheels, differential pinion shafts, booster pumps, drilling platforms, food machinery, indexing heads, welding machines, low-noise cooling towers, electromechanical equipment, coating equipment, machine tool groove plates, arc welding machines, water pumps, modules, and support seats.

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Ningbo WTOO Machinery Technology Co., Ltd.is China 7002C SU P4 Angular Contact Ball Bearing suppliers and Wholesale 7002C SU P4 Angular Contact Ball Bearing factory. Founded in May 2000, is a wholly-owned enterprise, covering an area of 31682 square meters, with a plant area of 61000 square meters, and has 950 employees, including 110 research and development personnel. The production and sales volume of miniature deep groove ball bearings with inner diameter ranging from 3mm to 60mm ranks the first in China and the second in the world.

WTOO has successively won the national manufacturing single champion, the national high-tech enterprise, the post-doctoral workstation of Zhejiang Province, the enterprise technology center of Zhejiang Province, and the brand strategy demonstration enterprise of Zhejiang Province. WTOO pays attention to scientific and technological innovation, constantly introduces scientific and technological talents, cooperates with domestic bearing industry experts and scientific research institutions, and vigorously implements the technical innovation project. In October 2010, it acquired and held two bearing companies in Shanghai, established talent centers, technology research and development centers, and sales centers, and formed a group business model.

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How does the manufacturing process differ for P4 precision class angular contact ball bearings?
The manufacturing process for P4 precision class angular contact ball bearings involves several additional steps and tighter controls compared to lower precision classes. Achieving P4 precision requires meticulous attention to detail in various stages of production. Here's how the manufacturing process for P4 precision class angular contact ball bearings differs:High-quality materials, particularly for the inner and outer rings, balls, and cage, are crucial. Premium-grade chrome steel or ceramic materials may be used to ensure uniformity and consistency.
Material Inspection:Rigorous inspection of raw materials to ensure they meet specified composition and quality standards.
Forging or Turning:The rings are forged or turned to achieve the desired shape and dimensions with minimal deviations from the specifications.
Heat Treatment:Precise heat treatment processes are applied to achieve the desired hardness and microstructure in the rings and balls. This step is crucial for achieving the required wear resistance and fatigue life.
Grinding and Superfinishing:High-precision grinding processes are used to achieve tight tolerances on the dimensions of the rings and balls. Superfinishing processes may be applied to further improve surface finish.
Assembly:The assembly process is conducted in a controlled environment to prevent contamination. Each bearing component is carefully inspected and cleaned before assembly.
Preloading:The preloading of angular contact ball bearings is a critical step to eliminate internal clearances and achieve the desired level of precision. This process may involve using shims, springs, or other methods to apply a specified axial load.
Lubrication:Lubrication is performed with precision to ensure the right amount and type of lubricant is applied. Proper lubrication is crucial for reducing friction, heat generation, and ensuring smooth operation.
Cage Manufacturing:If the bearing uses a cage, the cage is manufactured with precision to maintain accurate ball spacing and support high-speed operation. Materials like brass or engineered polymers may be chosen for P4 precision cages.
Quality Control:Stringent quality control measures are implemented throughout the manufacturing process. Advanced inspection tools, including coordinate measuring machines (CMMs) and optical inspection systems, may be used to verify dimensions and geometrical tolerances.
Marking and Packaging:Bearings are marked with the appropriate precision class designation and packaged in a controlled environment to prevent any damage or contamination before reaching the end user.
The entire manufacturing process for P4 precision class angular contact ball bearings involves a combination of advanced technologies, skilled craftsmanship, and rigorous quality control measures to meet the demanding requirements of high-precision applications.