71822 CD/P4DGA
71800 Series Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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71822 CD/P4DGA Bearing Product Overview & Core Advantages
The 71822 CD/P4DGA is a high-precision angular contact ball bearing designed for applications demanding exceptional accuracy and reliability. As a universal matchable (SU) bearing supplied in a pre-lubricated set of two, it enables simplified mounting and optimal performance in preloaded configurations. Its extra light preload (Class A) and P4 tolerance class ensure minimal runout and smooth operation, making it ideal for high-speed spindle applications. The bearing is engineered to handle combined loads efficiently, with its 15° contact angle providing excellent performance for both radial and axial loads.
71822 CD/P4DGA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71822 | Basic bearing designation indicating size and type |
| CD | 15° contact angle design |
| P4 | High precision tolerance class for superior running accuracy |
| DGA | Universal matchable bearing supplied as a set of two |
71822 CD/P4DGA Bearing Structural Features & Performance Benefits
The 71822 CD/P4DGA incorporates several advanced design features that deliver superior performance:
- High Precision Construction: Manufactured to P4 tolerance class with tight dimensional control (bore and OD tolerance: -0.004mm to 0) ensures minimal vibration and exceptional running accuracy
- Optimized Contact Design: 15° contact angle provides balanced performance for combined radial and axial loads, with dynamic load rating of 11,700 lbf and static load rating of 18,338 lbf
- High-Speed Capability: Phenolic cage material and optimized internal geometry enable operation at limiting speeds up to 16,000 rpm
- Precision Matching: As universal matchable bearings supplied in sets of two, they ensure consistent preload and simplified installation in paired arrangements
- Premium Materials: Chrome steel rings and balls provide excellent wear resistance and dimensional stability across the operating temperature range of -30°C to 110°C
71822 CD/P4DGA Bearing Typical Application Areas
The 71822 CD/P4DGA is specifically engineered for high-performance applications requiring precision and reliability:
- Machine Tool Spindles - High-speed milling, grinding, and turning centers
- Precision Instrumentation - Measuring equipment and laboratory instruments
- High-Speed Motors - Spindle motors and high-RPM drive systems
- Medical Equipment - Dental handpieces and surgical tools
- Aerospace Components - Guidance systems and precision actuators
