71922 CEGA/HCP4A
Hybrid Ceramic Super Precision Bearings
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Basic Information
Main Dimensions
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71922 CEGA/HCP4A Bearing Product Overview & Core Advantages
The 71922 CEGA/HCP4A is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional rotational accuracy and rigidity. Manufactured to P4A super-precision tolerance class, this bearing delivers superior running accuracy and dimensional stability. Its 15° contact angle and ceramic ball construction enable outstanding high-speed performance while maintaining dimensional stability under thermal variations. The bearing comes prelubricated and is universally matchable (SU), allowing for flexible mounting configurations in precision spindle arrangements.
71922 CEGA/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| CEGA | Enhanced design with ceramic balls and optimized internal geometry for superior high-speed performance |
| HCP4A | Indicates P4A super-precision tolerance class with enhanced running accuracy and dimensional stability |
71922 CEGA/HCP4A Bearing Structural Features & Performance Benefits
High-Speed Capability: The combination of ceramic balls and phenolic cage enables exceptional high-speed performance up to 16,250 rpm, reducing centrifugal forces and operating temperatures.
Precision Performance: Manufactured to P4A tolerance class with tight dimensional control (bore and OD tolerance: -0.004mm to 0), ensuring minimal runout and vibration for precision applications.
Thermal Stability: Ceramic ball material provides excellent thermal stability with reduced thermal expansion, maintaining preload and accuracy across the operating temperature range of -30°C to 110°C.
Universal Matching: Designed as universally matchable (SU) bearings, allowing for flexible arrangement in sets of 2 to accommodate complex load requirements and simplify inventory management.
71922 CEGA/HCP4A Bearing Typical Application Areas
The 71922 CEGA/HCP4A is ideally suited for high-precision, high-speed applications including:
- Machine tool spindles for CNC machining centers and grinding machines
- High-speed motor spindles in precision manufacturing equipment
- Aerospace components requiring exceptional precision and reliability
- Medical equipment spindles where accuracy and cleanliness are critical
- Semiconductor manufacturing equipment demanding ultra-precise rotational accuracy
