71800 CDGB/P4
71800 Series Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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71800 CDGB/P4 Bearing Product Overview & Core Advantages
The 71800 CDGB/P4 is a single-row angular contact ball bearing designed for high-precision applications requiring exceptional rotational accuracy and rigidity. Engineered with a P4 tolerance class, this bearing delivers superior running accuracy for demanding applications. Its 15° contact angle is optimized to handle significant axial loads in one direction while accommodating radial loads, making it ideal for high-speed spindle arrangements. The phenolic cage ensures smooth operation at limiting speeds up to 95,000 rpm, while the universal matching capability allows for precise preload configuration in duplex sets.
71800 CDGB/P4 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71800 | Basic bearing series designation |
| C | 15° contact angle design |
| D | Light preload (Class B) |
| G | Universal matching bearing |
| B | 40° contact angle (modified design) |
| /P4 | High precision tolerance class |
71800 CDGB/P4 Bearing Structural Features & Performance Benefits
Precision Engineering: Manufactured to P4 tolerance class with tight dimensional control (bore diameter tolerance: -0.004mm to 0), ensuring exceptional running accuracy and minimal vibration.
High-Speed Capability: The phenolic resin cage provides excellent dimensional stability and reduced friction, enabling reliable operation at ultra-high speeds up to 95,000 rpm.
Optimized Load Capacity: With a 15° contact angle and 12 precision balls (2.381 mm diameter), this bearing delivers superior axial load capacity in one direction while maintaining good radial load performance (dynamic load rating: 428 lbf).
Universal Matching Design: As a universal matchable bearing, it can be paired with another identical bearing to create precisely preloaded duplex sets, eliminating the need for selective assembly and reducing installation complexity.
Material Excellence: Constructed from chrome steel for both rings and balls, providing high hardness, wear resistance, and dimensional stability across the operating temperature range (-30°C to 110°C).
71800 CDGB/P4 Bearing Typical Application Areas
- Machine Tool Spindles: High-speed machining centers and precision grinding spindles
- Precision Instruments: Measuring equipment and optical instruments requiring minimal runout
- High-Speed Motors: Spindle motors and high-frequency electric motors
- Aerospace Components: Gyroscopes and navigation system components
- Medical Equipment: Dental handpieces and surgical tool rotors
- Robotics: Precision joint mechanisms and servo motor applications
