71910 CEGA/HCP4A
Hybrid Ceramic Super Precision Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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71910 CEGA/HCP4A Bearing Product Overview & Core Advantages
The 71910 CEGA/HCP4A is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy and performance. This single bearing features an extra light preload (Class A) and is manufactured to P4A tolerance class, ensuring ultra-precise rotational characteristics. Its 15° contact angle is optimized to support combined radial and axial loads simultaneously. The use of ceramic balls and a phenolic cage contributes to lower friction, higher limiting speeds, and extended service life, making it ideal for high-speed spindle applications.
71910 CEGA/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
- 71910: Basic series designation for a high-precision, small-bore angular contact bearing
- C: 15° contact angle
- E: Optimized internal design for high-speed operation
- GA: Universal Matchable (SU) bearing in a set of 2
- HCP4A: P4A tolerance class with enhanced running accuracy
71910 CEGA/HCP4A Bearing Structural Features & Performance Benefits
High-Precision Design: Manufactured to P4A tolerance class with extremely tight dimensional tolerances on bore, outside diameter, and width for superior running accuracy.
Advanced Material Composition: Features ceramic balls (Si3N4) that provide lower density, reduced centrifugal forces, and superior performance at high speeds up to 46,000 rpm. The phenolic resin cage offers excellent strength-to-weight ratio and smooth operation.
Optimized Load Capacity: The 15° contact angle enables efficient handling of combined loads with a dynamic load rating of 2858 lbf and static load rating of 1912 lbf.
Universal Matching Capability: Designed as Universal Matchable (SU) bearings, allowing precise arrangement in pairs for optimal preload and stiffness control.
71910 CEGA/HCP4A Bearing Typical Application Areas
The 71910 CEGA/HCP4A is specifically engineered for high-performance applications including:
- 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, turbo-molecular pumps
