71920 CD/P4ATGA
71900 Series Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
71920 CD/P4ATGA Bearing Product Overview & Core Advantages
The 71920 CD/P4ATGA is a precision angular contact ball bearing manufactured to P4A tolerance class for exceptional dimensional accuracy and running precision. Engineered with an Extra Light (A) preload and 15° contact angle, this bearing delivers superior high-speed performance and precise rotational characteristics. Its universal matchable (SU) design allows for flexible mounting arrangements in multi-bearing setups, providing outstanding operational stability and high rigidity for demanding applications.
71920 CD/P4ATGA Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Performance Benefit |
|---|---|---|
| CD | 15° contact angle, universal matchable design | Optimized for combined loads and flexible mounting configurations |
| P4A | High precision tolerance class | Superior running accuracy and dimensional stability |
| TGA | Phenolic cage material, lubricated | Enhanced high-speed capability and reduced friction |
71920 CD/P4ATGA Bearing Structural Features & Performance Benefits
High-Precision Construction: Manufactured to P4A tolerance standards with bore and outside diameter tolerances of -0.004mm to 0, ensuring exceptional dimensional accuracy and consistent performance in precision applications.
Optimized Load Capacity: With a radial dynamic load rating of 29,250 lbf and radial static load rating of 45,000 lbf, this bearing effectively handles combined radial and axial loads while maintaining operational stability.
High-Speed Performance: The phenolic cage and optimized internal geometry enable a limiting speed of 16,000 rpm, making it ideal for high-speed spindle applications requiring minimal vibration and heat generation.
Universal Matching Capability: Designed as Universal Matchable (SU) bearings, they can be arranged in sets of three for optimal preload distribution and enhanced system rigidity in complex mounting configurations.
71920 CD/P4ATGA Bearing Typical Application Areas
- Machine Tool Spindles: High-precision machining centers and grinding spindles
- High-Speed Motors: Precision electric motors and servo drives
- Aerospace Systems: Aircraft instrumentation and control systems
- Medical Equipment: High-speed dental handpieces and surgical tools
- Precision Robotics: Industrial robot joints and positioning systems
