71805 CD/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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71805 CD/P4 Bearing Product Overview & Core Advantages
The 71805 CD/P4 is a single-row angular contact ball bearing designed for applications requiring high precision and superior rotational accuracy. Engineered to P4 (ABEC-7) tolerance class, this bearing excels at handling combined loads with its optimized 15° contact angle, providing excellent axial load capacity in one direction while accommodating radial loads. Its compact design with a 7mm width makes it ideal for space-constrained applications demanding high-speed performance and rigid support.
71805 CD/P4 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Performance Impact |
|---|---|---|
| 71805 | Basic bearing designation with 25mm bore diameter | Standard size reference |
| CD | Contact angle designation (15° optimized) | Enhanced axial load capacity |
| P4 | Precision tolerance class (ABEC-7 equivalent) | Superior running accuracy and low vibration |
71805 CD/P4 Bearing Structural Features & Performance Benefits
High-Precision Construction: Manufactured to P4 tolerance standards with bore diameter tolerance of -0.005mm to 0, ensuring exceptional dimensional accuracy and minimal runout for precision applications.
Optimized Load Distribution: Features a 15° contact angle that efficiently handles combined radial and axial loads, with dynamic load rating of 936 lbf and static load rating of 720 lbf.
High-Speed Capability: Utilizes a phenolic resin cage that reduces friction and enables operation at limiting speeds up to 56,000 rpm, making it suitable for high-speed spindle applications.
Premium Material Selection: Constructed from chrome steel for both rings and balls, providing excellent wear resistance and durability under demanding operating conditions.
Compact Design Efficiency: With only 7mm width and weighing just 0.021kg, this bearing offers space-saving advantages without compromising performance.
71805 CD/P4 Bearing Typical Application Areas
- Machine Tool Spindles: High-precision machining centers and CNC equipment requiring superior rotational accuracy
- Precision Instrumentation: Measuring devices, optical equipment, and laboratory instruments
- High-Speed Motors: Servo motors, spindle motors, and other high-RPM electric motors
- Medical Equipment: Dental handpieces, surgical tools, and diagnostic imaging systems
- Aerospace Components: Guidance systems, avionics, and precision control mechanisms
- Robotics and Automation: Joint mechanisms, precision positioning systems, and robotic arms
