71806 CDGB/VQ253
71800 Series Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
71806 CDGB/VQ253 Bearing Product Overview & Core Advantages
The 71806 CDGB/VQ253 is a precision angular contact ball bearing designed for applications requiring high rotational accuracy and reliability. Engineered with a 15° contact angle and light preload (Class B), this bearing excels at handling combined radial and axial loads simultaneously. Its compact design, featuring a 7mm width, makes it ideal for space-constrained, high-speed applications such as precision spindles. The phenolic cage and optimized internal geometry contribute to its exceptional high-speed capabilities, with a limiting speed of 83,000 rpm, while the chrome steel construction ensures durability and long service life.
71806 CDGB/VQ253 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71806 | Basic bearing designation indicating metric dimensions (30mm bore, 42mm OD, 7mm width) |
| C | 15° contact angle design |
| DG | Universal matching bearing designation (though specified as standard/non-universal matching in this configuration) |
| B | Light preload classification (Class B) |
| VQ253 | Specific lubrication designation (factory pre-lubricated) |
71806 CDGB/VQ253 Bearing Structural Features & Performance Benefits
High-Speed Performance: The phenolic resin cage provides excellent dimensional stability and reduced friction at high rotational speeds, enabling the bearing to achieve its remarkable 83,000 rpm limiting speed. The optimized internal geometry with 23 precision balls ensures smooth operation under demanding conditions.
Precision & Rigidity: Manufactured with strict tolerance standards (bore and OD tolerance: -0.004mm to 0), this bearing delivers exceptional running accuracy. The 15° contact angle and light preload configuration provide superior axial rigidity while minimizing friction and heat generation.
Load Capacity: With a dynamic load rating of 994 lbf and static load rating of 844 lbf, this angular contact bearing effectively handles combined loads in applications requiring precise positioning and rotational stability.
Temperature Performance: The bearing operates reliably across a temperature range of -30°C to 110°C, making it suitable for various industrial environments while maintaining consistent performance characteristics.
71806 CDGB/VQ253 Bearing Typical Application Areas
- Machine Tool Spindles - High-speed machining centers and precision grinding applications
- Precision Instruments - Measuring equipment and optical devices requiring minimal runout
- High-Speed Motors - Servo motors and spindle drives in automation systems
- Medical Equipment - Dental handpieces and laboratory instrumentation
- Aerospace Components - Guidance systems and auxiliary power units
- Robotics - Joint actuators and precision positioning mechanisms
