71932 CDGA/P4A
71900 Series Super Precision Angular Contact Ball Bearings
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71932 CDGA/P4A Bearing Product Overview & Core Advantages
The 71932 CDGA/P4A is a single-row angular contact ball bearing engineered for high-precision applications requiring exceptional rotational accuracy and speed capability. Designed to accommodate primarily axial loads in one direction and combined loads, this bearing features Extra Light preload (Class A) and P4A super-precision tolerance for minimal runout and vibration. Its universal matching (SU) capability allows for flexible mounting arrangements in multi-bearing systems, making it ideal for demanding applications where rigidity and positional accuracy are critical.
71932 CDGA/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix | Technical Meaning |
|---|---|
| CDGA | 15° contact angle with Extra Light preload (Class A) |
| P4A | Super-precision tolerance class exceeding ABEC 7 standards |
| Open | No seals/shields for maximum speed capability |
71932 CDGA/P4A Bearing Structural Features & Performance Benefits
High Precision Construction: Manufactured to P4A tolerance class with bore and outside diameter tolerances of -0.004mm to 0, ensuring exceptional dimensional stability and runout control for precision spindle applications.
Optimized Load Capacity: With a 15° contact angle and radial dynamic load rating of 29,250 lbf, this bearing effectively handles combined radial and axial loads while maintaining high-speed performance.
Superior High-Speed Performance: The phenolic resin cage and open design enable a limiting speed of 11,000 rpm, while the optimized ball diameter of 19.05mm and quantity (28 balls) provide balanced load distribution.
Thermal Stability: Chrome steel construction maintains dimensional stability across the operating temperature range of -30°C to 110°C, ensuring consistent performance in varying thermal conditions.
71932 CDGA/P4A Bearing Typical Application Areas
- Machine Tool Spindles: High-precision machining centers and grinding spindles
- Precision Instrumentation: Measuring equipment and optical systems requiring minimal vibration
- High-Speed Motors: Industrial motors and generator applications
- Aerospace Components: Guidance systems and auxiliary power units
- Medical Equipment: High-speed dental handpieces and surgical tools
