71932 CD/P4ADGC
71900 Series Super Precision Angular Contact Ball Bearings
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71932 CD/P4ADGC Bearing Product Overview & Core Advantages
The 71932 CD/P4ADGC is a precision angular contact ball bearing designed for demanding applications requiring high rotational accuracy and rigidity. As a Universal Matchable (SU) bearing supplied in a set of two, it is engineered to accommodate combined loads (radial and axial) simultaneously. Its P4A tolerance class ensures exceptional dimensional and running accuracy, making it ideal for high-speed, high-precision spindles and machinery. The moderate preload (Class C) provides optimal stiffness and minimizes deflection under operational stresses, delivering reliable performance in critical applications.
71932 CD/P4ADGC Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71932 | Basic bearing series and size designation (160mm bore, 220mm OD). |
| C | Specifies a 15° contact angle, optimized for high-speed operation and moderate axial load capacity. |
| D | Indicates the bearing is part of a Universal Matchable (SU) pair. Two such bearings can be arranged in tandem, back-to-back, or face-to-face configurations to handle complex load conditions. |
| P4A | Denotes an ultra-precision tolerance class, with extremely tight limits on bore, outer diameter, and width dimensions for superior running accuracy. |
| DGC | Indicates the bearing is lubricated and supplied as part of a Universal Matchable (SU) set. |
71932 CD/P4ADGC Bearing Structural Features & Performance Benefits
High Rigidity and Load Capacity: The angular contact design and moderate preload work in concert to provide high system rigidity, effectively resisting operational deflection. This enables the bearing to support significant combined radial and axial loads.
High-Speed Capability: The 15° contact angle and lightweight phenolic cage are optimized for high-speed operation, allowing for a limiting speed of 11,000 rpm. The phenolic cage offers excellent strength-to-weight ratio and operates smoothly at high velocities.
Precision Performance: Manufactured to P4A tolerance class with chrome steel rings and balls, this bearing guarantees minimal runout and vibration, which is critical for applications requiring extreme positional accuracy and smooth rotation.
Matched Set Flexibility: Being Universal Matchable (SU) allows for versatile mounting arrangements (DB, DF, DT) to precisely control preload and stiffness, adapting to specific application requirements for optimal performance.
71932 CD/P4ADGC Bearing Typical Application Areas
The 71932 CD/P4ADGC is ideally suited for high-performance machinery where precision, speed, and rigidity are paramount. Key application areas include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Spindles: PCB drilling, precision grinding, and other high-accuracy machining operations.
- High-Frequency Motors: Spindles for integrally mounted motor spindles.
- Robotics: High-accuracy joints and rotary axes.
