71803 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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71803 CDGB/P4 Bearing Product Overview & Core Advantages
The 71803 CDGB/P4 is a single-row angular contact ball bearing designed for high-precision applications requiring exceptional rotational accuracy and rigidity. Manufactured to P4 tolerance class, this bearing delivers superior dimensional stability and minimal runout. Its 15° contact angle provides optimal performance for combined loads, efficiently handling both radial and axial forces. With a light preload (Class B) and universal matching capability (SU), it enables simplified installation in precision spindle arrangements. The phenolic cage ensures smooth operation at high rotational speeds up to 103,000 rpm, making it ideal for demanding industrial applications.
71803 CDGB/P4 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71803 | Basic bearing designation with 17mm bore diameter |
| C | 15° contact angle design |
| D | Light preload (Class B) |
| G | Universal matching bearing (SU designation) |
| B | 72mm pitch circle diameter of cage |
| P4 | High precision tolerance class |
71803 CDGB/P4 Bearing Structural Features & Performance Benefits
High Precision Construction: Manufactured to P4 tolerance standards with tight dimensional control (±0.004mm on bore and OD), ensuring minimal vibration and superior running accuracy for precision applications.
Optimized Load Capacity: The 15° contact angle design provides excellent performance for combined radial and axial loads, with dynamic load rating of 526 lbf and static load rating of 360 lbf.
High-Speed Performance: The phenolic resin cage and optimized internal geometry enable exceptional rotational speeds up to 103,000 rpm, reducing friction and heat generation.
Universal Matching Capability: Designed as universal matchable bearings (SU), allowing flexible arrangement in sets of three for various preload configurations without selective matching.
Premium Material Selection: Constructed from chrome steel for both rings and balls, providing high hardness, wear resistance, and dimensional stability across the operating temperature range of -30°C to 110°C.
71803 CDGB/P4 Bearing Typical Application Areas
- Machine Tool Spindles: High-speed machining centers, grinding spindles, and precision lathes
- Precision Instruments: Measuring equipment, optical instruments, and laboratory devices
- High-Speed Motors: Servo motors, spindle motors, and high-frequency applications
- Medical Equipment: Dental handpieces, surgical tools, and diagnostic instruments
- Aerospace Components: Guidance systems, avionics, and precision control mechanisms
