71936 CDGA/P4B
71900 Series Super Precision Angular Contact Ball Bearings
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71936 CDGA/P4B Bearing Product Overview & Core Advantages
The 71936 CDGA/P4B is a single row angular contact ball bearing designed for high-precision applications requiring exceptional rotational accuracy and rigidity. Manufactured to P4 tolerance class, this bearing delivers superior running accuracy for demanding applications. Its 15° contact angle is optimized to handle significant axial loads in one direction while accommodating radial loads, making it ideal for arrangements requiring precise axial positioning. The bearing comes pre-lubricated and features a phenolic cage for quiet operation and high-speed capability, with a limiting speed of 7,500 rpm. As part of a Universal Matchable (SU) set, it enables simplified mounting in preloaded configurations for maximum system rigidity.
71936 CDGA/P4B Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71936 | Basic bearing designation indicating size series and bore diameter of 280mm |
| CD | 15° contact angle design optimized for high-speed applications |
| GA | Indicates bearing is part of a Universal Matchable (SU) set for preloaded arrangements |
| P4 | High precision tolerance class for applications requiring exceptional running accuracy |
| B | Indicates extra light preload (Class A) for optimal rigidity in precision applications |
71936 CDGA/P4B Bearing Structural Features & Performance Benefits
Precision Engineering: Manufactured to P4 tolerance class with strict dimensional control (bore diameter tolerance: -0.004mm to 0, outside diameter tolerance: -0.004mm to 0) ensuring exceptional running accuracy and consistent performance in precision applications.
High-Speed Capability: The phenolic cage provides excellent strength-to-weight ratio, enabling stable operation at high speeds up to 7,500 rpm while reducing centrifugal forces and maintaining dimensional stability.
Superior Load Capacity: With a 15° contact angle design, this bearing efficiently handles combined radial and axial loads, featuring a dynamic load rating of 37,800 lbf and static load rating of 47,700 lbf for reliable operation under demanding conditions.
Universal Matching Design: As a Universal Matchable (SU) bearing, it can be mounted in various preloaded configurations (sets of 4) without selective assembly, simplifying installation and ensuring optimal system rigidity.
Premium Material Construction: Manufactured from chrome steel for both rings and balls (ball diameter: 22.225mm, quantity: 27), providing excellent wear resistance and fatigue life in precision applications.
71936 CDGA/P4B Bearing Typical Application Areas
- Machine Tool Spindles: High-precision machining centers, grinding spindles, and milling machine spindles requiring exceptional running accuracy
- Precision Gearboxes: Industrial gearboxes and transmission systems demanding high-speed capability and precise axial positioning
- High-Speed Motors: Electric motors and servo drives operating at elevated speeds up to 7,500 rpm
- Aerospace Systems: Aircraft accessory drives and aerospace mechanisms requiring reliable performance under combined loads
- Medical Equipment: High-speed medical scanners and precision laboratory equipment demanding quiet operation and accuracy
- Robotics & Automation: Industrial robots and automated systems requiring precise motion control and high rigidity
