71952 CDGA/P4A
71900 Series Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
71952 CDGA/P4A Bearing Product Overview & Core Advantages
The 71952 CDGA/P4A is a single-row angular contact ball bearing designed for applications demanding ultra-high precision and exceptional rotational accuracy. Manufactured to P4A tolerance class, this bearing delivers superior dimensional stability and running accuracy. Its 15° contact angle is optimized to support significant combined loads, efficiently handling both radial and axial forces in one direction. The extra light preload (Class A) minimizes deflection under light loads, making it ideal for high-speed, high-precision spindles. As a Universal Matchable (SU) bearing, it can be precisely paired with another identical bearing to create a preloaded duplex set, offering enhanced rigidity and performance.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| 71952 | Basic bearing series and size designation. |
| C | Specific internal design and 15° contact angle. |
| DGA | Indicates Universal Matchable (SU) bearing. Two bearings can be face-to-face (DF), back-to-back (DB), or tandem (DT) mounted to form a preloaded set. |
| /P4A | Specifies the tolerance class P4A, denoting extremely high precision for dimensions and running accuracy, superior to standard ABEC 7/ISO P4. |
71952 CDGA/P4A Bearing Structural Features & Performance Benefits
- Ultra-High Precision & Rigidity: Manufactured to P4A tolerance class with exceptionally tight dimensional tolerances on the bore, outside diameter, and width. This ensures minimal runout and superior stability in high-speed, high-precision applications. The phenolic cage offers excellent strength-to-weight ratio and smooth operation.
- Superior Load Capacity: The angular contact design with a 15° contact angle is engineered to support high combined radial and axial loads. With a dynamic load rating of 63,225 lbf and a static load rating of 95,625 lbf, it provides reliable performance under demanding conditions.
- Optimized for High-Speed Operation: The lightweight phenolic cage, precision-ground chrome steel components, and extra light preload contribute to a high limiting speed of 4,500 rpm, making it suitable for high-speed spindle applications.
- Precision Matching Capability: The Universal Matchable (SU) designation means this bearing is supplied with selective tolerances, allowing for the creation of a preloaded duplex set with another identical bearing. This eliminates internal clearance and significantly increases system rigidity.
71952 CDGA/P4A Bearing Typical Application Areas
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Grinding Spindles: Internal, external, and surface grinding machines.
- High-Frequency Motors and High-Speed Drives.
- Aerospace & Defense gyroscopes and navigation systems.
- Medical Equipment such as high-speed dental handpieces and imaging devices.
