71813 CD/P4DGB
71800 Series Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
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Materials
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71813 CD/P4DGB Bearing Product Overview & Core Advantages
The 71813 CD/P4DGB is a precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and rigidity. As a universal matchable (SU) bearing supplied in a light preload (Class B) configuration, it delivers optimized performance in high-speed operations. Its 15° contact angle enables efficient handling of combined radial and axial loads, making it ideal for precision spindles and high-rigidity systems requiring minimal deflection under operational stresses.
71813 CD/P4DGB Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71813 | Basic bearing designation indicating size series and bore diameter |
| CD | Contact angle design and internal clearance specification |
| P4 | High precision tolerance class (ISO P4 equivalent to ABEC 7) |
| DGB | Universal matchable bearing set configuration (SU designation) |
71813 CD/P4DGB Bearing Structural Features & Performance Benefits
High Precision Construction: Manufactured to P4 tolerance class with bore and outside diameter tolerances of -0.004mm to 0, ensuring exceptional dimensional stability and running accuracy.
Optimized Load Capacity: Features a 15° contact angle and 29 chrome steel balls with 5.556 mm diameter, providing excellent combined load capacity (dynamic: 4972 lbf, static: 6750 lbf).
High-Speed Performance: The phenolic cage and optimized internal design enable a limiting speed of 36,000 rpm, making it suitable for high-speed spindle applications.
Universal Matching Capability: As an SU universal matchable bearing, it can be paired in any combination without performance degradation, simplifying installation and maintenance.
Premium Material Selection: Constructed from chrome steel for rings and balls, ensuring durability and consistent performance across the operating temperature range of -30°C to 110°C.
71813 CD/P4DGB Bearing Typical Application Areas
- Machine Tool Spindles - High-speed machining centers and precision grinding machines
- Precision Instrumentation - Measuring equipment and laboratory instruments
- High-Speed Motors - Spindle motors and high-frequency drives
- Aerospace Components - Guidance systems and precision actuators
- Medical Equipment - Dental handpieces and surgical tools requiring high precision
