71932 CDGA/P4B
71900 Series Super Precision Angular Contact Ball Bearings
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71932 CDGA/P4B Bearing Product Overview & Core Advantages
The 71932 CDGA/P4B is a single-row angular contact ball bearing engineered for ultra-precision applications requiring exceptional rotational accuracy and stability. Manufactured to P4 tolerance class, this bearing delivers superior running precision and is designed to handle primarily axial loads in one direction, with combined radial and axial load capacity. Its extra light preload (Class A) ensures minimal deflection under operational forces, making it ideal for high-speed spindles and precision machinery where rigidity and minimal runout are critical.
71932 CDGA/P4B Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71932 | Basic bearing designation (280mm bore, 380mm OD) |
| C | 15° contact angle for optimal axial load capacity |
| DG | Universal matching designation (Universal Matchable) |
| A | Extra light preload for minimal deflection |
| P4 | P4 tolerance class for high-precision applications |
| B | Modified internal design for optimized performance |
71932 CDGA/P4B Bearing Structural Features & Performance Benefits
Precision Engineering: Manufactured to P4 tolerance class with bore and outside diameter tolerances of -0.004mm to 0, ensuring exceptional dimensional stability and running accuracy.
High-Speed Capability: Features a phenolic resin cage that reduces centrifugal forces and friction, enabling operation at limiting speeds up to 7,500 rpm.
Superior Load Capacity: With a 15° contact angle and chrome steel construction, this bearing delivers excellent axial load capacity while maintaining radial load capability (29,250 lbf dynamic / 36,000 lbf static).
Universal Matching Design: Designed as part of a matched set of 4 bearings (SU designation), allowing for precise preload control and optimal performance in multi-bearing arrangements.
Thermal Stability: The phenolic cage and pre-lubrication provide consistent performance across the operating temperature range of -30°C to 110°C.
71932 CDGA/P4B Bearing Typical Application Areas
- Machine Tool Spindles - High-speed milling and grinding spindles requiring P4 precision
- Precision Gearboxes - Industrial transmission systems demanding high positional accuracy
- Robotic Systems - Articulation joints and rotary tables in automated manufacturing
- Aerospace Components - Flight control systems and auxiliary power units
- Medical Equipment - CT scanner gantries and high-speed dental handpieces
- Semiconductor Manufacturing - Wafer handling robots and precision positioning stages
