71932 ACDGA/P4A
71900 Series Super Precision Angular Contact Ball Bearings
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71932 ACDGA/P4A Bearing Product Overview & Core Advantages
The 71932 ACDGA/P4A is a high-precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and rigidity. This single bearing features an extra light preload (Class A) and a P4A tolerance class, making it ideal for high-speed spindles and precision machinery. Its optimized 25° contact angle provides superior performance in handling combined radial and axial loads. Manufactured from high-grade chrome steel with a phenolic cage, it offers reliable operation and extended service life in demanding environments.
71932 ACDGA/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71932 | Basic bearing designation (160mm bore, 220mm OD) |
| AC | Angular Contact design |
| D | High contact angle (25°) |
| GA | Universal Matchable bearing in a set of 3 |
| P4A | High precision tolerance class |
71932 ACDGA/P4A Bearing Structural Features & Performance Benefits
Precision Engineering: The P4A tolerance class ensures minimal runout and vibration, critical for high-speed applications requiring exceptional rotational accuracy.
Optimized Load Capacity: With a 25° contact angle and robust construction, this bearing efficiently handles combined radial and axial loads, offering a dynamic load rating of 27,900 lbf and static load rating of 34,425 lbf.
High-Speed Capability: The phenolic cage and precision-ground components enable operation at limiting speeds up to 11,000 rpm, making it suitable for high-speed spindle applications.
Universal Matching: Designed as Universal Matchable (SU) in sets of three, these bearings can be arranged in tandem for increased load capacity and rigidity without additional machining.
Thermal Stability: The phenolic cage material provides excellent dimensional stability across the operating temperature range of -30°C to 110°C.
71932 ACDGA/P4A Bearing Typical Application Areas
- Machine Tool Spindles: High-precision milling, grinding, and turning centers
- Precision Robotics: High-accuracy robotic arms and positioning systems
- Aerospace Equipment: Guidance systems and aircraft instrumentation
- Medical Equipment: High-speed dental handpieces and surgical tools
- Test & Measurement: Precision rotary tables and coordinate measuring machines
