71932 CDGA/P4
71900 Series Super Precision Angular Contact Ball Bearings
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71932 CDGA/P4 Bearing Product Overview & Core Advantages
The 71932 CDGA/P4 is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy and performance. Manufactured to P4 tolerance class, this bearing delivers superior running accuracy and rotational stability. Its 15° contact angle and extra light preload (Class A) make it ideally suited for high-speed operation, with a limiting speed of 7,500 rpm. The open design, combined with a phenolic cage, ensures low friction and optimal performance in precision spindles and other critical machinery where high rigidity and minimal deflection are paramount.
71932 CDGA/P4 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71932 | Basic bearing series and size designation (280mm bore, 380mm OD). |
| C | 15° nominal contact angle. |
| DG | Universal Matchable (SU) bearing. Can be mounted in pairs (back-to-back, face-to-face, or tandem) to support combined loads. |
| A | Extra light preload (Class A). |
| /P4 | High precision bearing tolerance class, ensuring extremely tight dimensional and running accuracy. |
71932 CDGA/P4 Bearing Structural Features & Performance Benefits
- High Precision & Rigidity: Manufactured to P4 tolerance standards with a phenolic cage, this bearing provides exceptional dimensional stability and high rigidity, minimizing shaft deflection under load.
- Optimized for High-Speed Operation: The 15° contact angle and extra light preload are specifically engineered to reduce heat generation and power loss, enabling stable performance at high rotational speeds up to 7,500 rpm.
- Superior Load Capacity: With a dynamic load rating of 29,250 lbf and a static load rating of 36,000 lbf, this angular contact ball bearing is capable of handling significant combined loads (radial and axial).
- Universal Matching (SU): The "DG" suffix indicates that these bearings are universal matchable. They can be supplied in sets of 4 and arranged in various configurations (DB, DF, DT) to create a stiff bearing system tailored to specific application requirements for axial and moment loads.
71932 CDGA/P4 Bearing Typical Application Areas
The 71932 CDGA/P4 is a critical component in high-performance machinery where precision and speed are non-negotiable. Its primary applications include:
- Machine Tool Spindles: For CNC milling centers, lathes, and grinding machines requiring high speed and accuracy.
- Precision Spindles: In PCB drilling, high-frequency milling, and other precision machining applications.
- High-Speed Motors and Turbines: Where low friction and thermal stability are crucial.
- Industrial Pumps and Compressors: For applications demanding reliable operation under combined loads.
