71813 CD/P4
71800 Series Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
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71813 CD/P4 Bearing Product Overview & Core Advantages
The 71813 CD/P4 is a single-row angular contact ball bearing engineered for high-precision and high-speed applications. Its design is optimized to support significant combined loads, handling both radial and axial loads in one direction simultaneously. The bearing features a P4 (ABEC-7) tolerance class for exceptional running accuracy, a phenolic resin cage for reduced friction at high speeds, and is pre-lubricated for immediate operation. Its compact bearing dimensions (65mm bore, 85mm OD, 10mm width) make it an ideal choice for space-constrained, high-performance machinery requiring superior rigidity and reliability.
71813 CD/P4 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71813 | Basic bearing designation, indicating a metric, single-row angular contact ball bearing with a 65mm bore, 85mm OD, and 10mm width. |
| CD | Indicates a specific contact angle of 15° and a specific internal design optimized for high rigidity and load capacity. |
| P4 | Denotes the tolerance class, equivalent to ABEC-7. This signifies extremely tight dimensional and running accuracy for precision bearing applications. |
71813 CD/P4 Bearing Structural Features & Performance Benefits
- High Rigidity and Load Capacity: The optimized contact angle of 15° and robust internal geometry enable the bearing to effectively support substantial combined radial and axial loads, providing stable and rigid support for spindles and shafts.
- Superior High-Speed Performance: The lightweight phenolic resin cage ensures low inertia and excellent performance at the high limiting speed of 22,000 rpm, reducing friction and heat generation.
- Precision Engineering: Manufactured to a P4 tolerance class, this bearing guarantees minimal runout and vibration, which is critical for achieving high rotational accuracy in demanding applications.
- Pre-Lubricated & Ready for Use: The bearing comes pre-lubricated, facilitating easy installation and immediate operation, reducing initial setup time.
71813 CD/P4 Bearing Typical Application Areas
- Machine Tool Spindles
- High-Speed Motors and Spindles
- Precision Grinding Equipment
- Industrial Pumps and Compressors
- Robotic Drives and Actuators
