71952 CD/P4ADBB
71900 Series Super Precision Angular Contact Ball Bearings
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71952 CD/P4ADBB Bearing Product Overview & Core Advantages
The 71952 CD/P4ADBB is a precision duplex angular contact ball bearing designed for applications requiring exceptional rotational accuracy and rigidity. This matched back-to-back (DB) arrangement is preloaded to Light / Class B specifications, ensuring high system stiffness and minimal axial/radial runout. Its primary advantage lies in its ability to handle combined loads (radial and axial) simultaneously with superior performance. Manufactured to a P4A tolerance class, it is ideal for high-precision, high-reliability machinery where operational stability is critical.
71952 CD/P4ADBB Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71952 | Basic bearing designation indicating size and type (Angular Contact). |
| C | 15° contact angle, optimized for carrying significant axial loads. |
| D | Indicates a duplex (two-bearing) set. |
| P4A | High-precision tolerance class, exceeding ABEC 7/ISO P4 standards for enhanced running accuracy. |
| DB | Back-to-Back arrangement. This configuration provides high moment rigidity and is excellent for withstanding overturning moments. |
| B | Specifies a Light preload (Class B), which increases bearing stiffness and minimizes deflection under load. |
71952 CD/P4ADBB Bearing Structural Features & Performance Benefits
- High Rigidity & Stability: The duplex back-to-back (DB) design creates a wide, rigid support system that effectively resists moment loads and shaft misalignment, ensuring precise shaft positioning.
- Superior Load Capacity: With a 15° contact angle and duplex pairing, this bearing set is engineered to handle high combined radial and axial loads efficiently.
- Precision Performance: The P4A tolerance class guarantees extremely tight dimensional and running accuracy, which is essential for applications requiring minimal vibration and high rotational precision.
- Optimized Internal Geometry: Featuring 29 balls of 30.162 mm diameter and a phenolic cage, this design is optimized for smooth operation, reduced friction, and suitability in high-speed applications up to 4,500 rpm.
- Durable Construction: Components made from chrome steel provide high hardness, wear resistance, and a long operational life under demanding conditions.
71952 CD/P4ADBB Bearing Typical Application Areas
The 71952 CD/P4ADBB is specified for use in high-performance machinery where precision, speed, and rigidity are non-negotiable. Key sectors include:
- Machine Tool Spindles: For high-speed milling, grinding, and turning centers.
- Precision Gearboxes and Industrial Pumps.
- High-Frequency Motors and Aerospace Positioning Systems.
- Medical Imaging Equipment and other advanced scientific instruments.
