71807 ACD/HCP4
Hybrid Ceramic Super Precision Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
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71807 ACD/HCP4 Bearing Product Overview & Core Advantages
The 71807 ACD/HCP4 is a high-precision angular contact ball bearing designed for applications demanding exceptional accuracy and performance. Engineered to a P4 (ABEC-7) tolerance class, this bearing excels at handling combined radial and axial loads simultaneously. Its compact design with a 7mm width provides space-saving advantages while maintaining high rigidity. The combination of ceramic balls and phenolic cage enables superior high-speed performance up to 48,000 rpm, making it ideal for precision machinery requiring minimal vibration and maximum reliability.
71807 ACD/HCP4 Bearing Model Code Explained, Specifications & Naming Convention
| Suffix | Technical Meaning | Performance Benefit |
|---|---|---|
| ACD | 25° Contact Angle Design | Optimized for axial load capacity and high-speed operation |
| HC | Hybrid Ceramic (Silicon Nitride Balls) | Reduced weight, lower friction, and extended service life |
| P4 | Precision Tolerance Class (ABEC-7) | Exceptional running accuracy and minimal vibration |
71807 ACD/HCP4 Bearing Structural Features & Performance Benefits
Hybrid Ceramic Construction: The combination of chrome steel rings with ceramic balls provides significant advantages including reduced centrifugal forces, lower operating temperatures, and extended lubrication life. This construction enables the bearing to achieve higher limiting speeds while maintaining dimensional stability.
Phenolic Cage Design: The lightweight phenolic resin cage offers excellent dimensional stability at high speeds and provides superior guidance for the ceramic balls, ensuring smooth operation and reduced cage wear.
25° Contact Angle Optimization: The specific contact angle is engineered to balance axial and radial load capacities, making this bearing particularly effective for applications requiring precise combined load handling with minimal deflection.
Precision Manufacturing: Manufactured to P4 tolerance standards, this bearing ensures consistent performance with tight dimensional control on bearing dimensions including bore diameter (35mm), outside diameter (47mm), and width (7mm) with precise tolerances.
71807 ACD/HCP4 Bearing Typical Application Areas
- High-Speed Machine Tool Spindles - Precision machining centers requiring minimal runout and thermal stability
- Medical Equipment - Surgical handpieces and dental drills demanding reliability and precision
- Aerospace Components - Guidance systems and instrumentation requiring high-speed accuracy
- Semiconductor Manufacturing - Wafer handling equipment and precision positioning systems
- Laboratory Instruments - Centrifuges and analytical equipment requiring vibration-free operation
