71805 CD/P4DGB
71800 Series Super Precision Angular Contact Ball Bearings
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71805 CD/P4DGB Bearing Product Overview & Core Advantages
The 71805 CD/P4DGB is a precision angular contact ball bearing designed for applications requiring exceptional rotational accuracy and high-speed performance. As a universal matchable (SU) bearing supplied in a light preload (Class B) matched set, it delivers optimized stiffness and running accuracy. Its 15° contact angle enables efficient handling of combined radial and axial loads. Manufactured to P4 tolerance class with a phenolic cage, this bearing offers superior dimensional stability and is ideal for high-precision, high-reliability installations.
71805 CD/P4DGB Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Performance Significance |
|---|---|---|
| CD | 15° contact angle, universal matchable design | Optimized for combined loads and flexible mounting arrangements |
| P4 | P4 tolerance class | High precision grade for applications requiring minimal runout |
| DGB | Light preload (Class B) in universal match arrangement | Pre-loaded pair ensures consistent performance and reduced deflection |
71805 CD/P4DGB Bearing Structural Features & Performance Benefits
High Precision Construction: Manufactured to P4 tolerance class with tight dimensional controls (bore diameter tolerance: -0.004mm to 0) ensures exceptional running accuracy and minimal vibration.
Optimized Load Capacity: The 15° contact angle and 20 chrome steel balls provide excellent combined load capacity (radial dynamic load: 1521 lbf, static load: 1440 lbf).
High-Speed Performance: The phenolic cage and optimized internal geometry enable limiting speeds up to 103,000 rpm, making it suitable for high-speed applications.
Universal Matching Capability: As a universal matchable (SU) bearing supplied in a pre-loaded set of 2, it offers flexible mounting options and consistent performance without additional adjustment.
Temperature Stability: The phenolic cage and chrome steel construction maintain dimensional stability across a wide temperature range (-30°C to 110°C).
71805 CD/P4DGB Bearing Typical Application Areas
- Machine tool spindles and high-precision machining centers
- High-speed motors and precision servo systems
- Medical equipment and dental handpieces
- Aerospace components and instrumentation
- Precision grinding equipment and measuring instruments
