71922 CE/HCP4ADGA
Hybrid Ceramic Super Precision Bearings
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Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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71922 CE/HCP4ADGA Bearing Product Overview & Core Advantages
The 71922 CE/HCP4ADGA is a super-precision angular contact ball bearing designed for the most demanding applications. Engineered to P4A tolerance class, it delivers exceptional rotational accuracy and dimensional stability. Its universal matchable (SU) design allows for flexible mounting arrangements in preloaded pairs, enabling optimal high-speed performance and high rigidity. The combination of a ceramic ball material and phenolic cage contributes to lower friction, reduced heat generation, and extended service life, making it ideal for machine tool spindles and other high-precision machinery.
71922 CE/HCP4ADGA Bearing Model Code Explained, Specifications & Naming Convention
- 71922: Basic bearing designation (110mm bore, 150mm OD, 40mm width)
- C: 15° contact angle
- E: High-precision design
- HC: Hybrid Ceramic (steel rings with ceramic balls)
- P4A: Ultra-precision tolerance class exceeding ABEC 7/ISO P4
- D: Light preload
- GA: Universal matchable bearing (can be paired in any combination)
71922 CE/HCP4ADGA Bearing Structural Features & Performance Benefits
Hybrid Ceramic Construction: The combination of chrome steel rings and ceramic balls (Si3N4) significantly reduces centrifugal forces, minimizes friction, and enables higher operating speeds while maintaining dimensional stability across the temperature range (-30°C to 110°C).
Precision Engineering: Manufactured to P4A tolerance class with tight dimensional controls (bore/OD tolerance: -0.004mm to 0), ensuring exceptional running accuracy and minimal vibration for high-speed applications up to 16,250 rpm.
Optimized Cage Design: The phenolic resin cage provides excellent strength-to-weight ratio, reduced friction, and superior performance at high speeds compared to metallic cages.
Universal Matching Capability: As an SU universal matchable bearing, it can be paired in any combination to achieve precise preload settings, simplifying installation and optimizing bearing stiffness for combined radial and axial loads.
71922 CE/HCP4ADGA Bearing Typical Application Areas
The 71922 CE/HCP4ADGA excels in applications requiring ultra-high precision and exceptional speed capabilities:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers
- Precision Medical Equipment: Dental handpieces, surgical tools
- Aerospace Systems: Gyroscopes, navigation instruments
- Semiconductor Manufacturing: Wafer handling robots, precision stages
- High-Speed Motors: Spindle motors, high-frequency generators
