71902 CEGA/P4A
71900 Series Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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Product Overview and Core Advantages
The 71902 CEGA/P4A is a single-row angular contact ball bearing designed for applications requiring high precision and superior performance under combined loads. Engineered to P4A tolerance class standards, this bearing delivers exceptional running accuracy and dimensional stability. Its 15° contact angle provides optimal performance for applications involving both radial and axial loads. The phenolic cage and universal matching capability make it ideal for precision spindle arrangements requiring high-speed operation and thermal stability.
71902 CEGA/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Performance Benefit |
|---|---|---|
| CEGA | Universal match bearing set designation | Enables precise preload control when mounted with another identical bearing |
| P4A | High precision tolerance class | Superior running accuracy and dimensional stability for precision applications |
Structural Features and Performance Benefits
High Precision Design: Manufactured to P4A tolerance class with bore and outside diameter tolerances of -0.004mm to 0, ensuring exceptional dimensional accuracy and running precision.
Optimized Load Capacity: The 15° contact angle configuration enables efficient handling of combined radial and axial loads, with a dynamic load rating of 718 lbf and static load rating of 308 lbf.
High-Speed Performance: The phenolic cage provides excellent strength-to-weight ratio and thermal stability, supporting operation at limiting speeds up to 140,000 rpm.
Universal Matching Capability: Designed as Universal Matchable (SU), allowing precise bearing arrangements with controlled preload when paired with identical bearings.
Premium Material Construction: Manufactured from chrome steel for both rings and balls, ensuring high hardness, wear resistance, and long service life.
71902 CEGA/P4A Bearing Typical Application Areas
- High-speed machine tool spindles requiring precision and thermal stability
- Precision grinding applications where running accuracy is critical
- Medical equipment and dental handpieces demanding high rotational speeds
- Aerospace components requiring reliable performance under combined loads
- Robotics and automation systems needing precise motion control
- High-frequency spindle drives in manufacturing equipment
