71800 ACD/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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71800 ACD/P4 Bearing Product Overview & Core Advantages
The 71800 ACD/P4 is a single-row angular contact ball bearing engineered for high-precision applications requiring exceptional rotational accuracy and rigidity. This metric series bearing features a 25° contact angle and P4 (ABEC-7) tolerance class, making it ideal for applications demanding minimal runout and vibration. Its compact design with a 10mm bore and 5mm width provides space-saving solutions while delivering reliable performance under combined radial and axial loads. The phenolic cage and optimized internal geometry contribute to its high-speed capability and smooth operation.
71800 ACD/P4 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71800 | Basic bearing series designation for metric angular contact bearings |
| ACD | Angular Contact Design with 25° contact angle |
| P4 | High precision tolerance class (equivalent to ABEC-7) |
71800 ACD/P4 Bearing Structural Features & Performance Benefits
High Precision Construction: Manufactured to P4 tolerance class with tight dimensional control (bore tolerance: -0.004mm to 0), ensuring exceptional running accuracy and minimal vibration in precision machinery.
Optimized Load Capacity: The 25° contact angle enables efficient handling of combined radial and axial loads in one direction, with dynamic load rating of 400 lbf and static load rating of 209 lbf.
High-Speed Performance: The phenolic resin cage provides excellent strength-to-weight ratio, contributing to the bearing's limiting speed of 110,000 rpm while reducing centrifugal forces.
Premium Material Selection: Constructed from chrome steel for both rings and balls, offering superior hardness, wear resistance, and dimensional stability across the operating temperature range of -30° to 110°C.
Preload Capability: Designed to accommodate preload for enhanced system stiffness and precise shaft positioning in high-accuracy applications.
71800 ACD/P4 Bearing Typical Application Areas
- High-speed machine tool spindles and precision machining centers
- Medical equipment including dental handpieces and surgical tools
- Aerospace components requiring high precision and reliability
- Robotics and automation systems with demanding accuracy requirements
- Precision instruments and measuring equipment
- Small electric motors and high-speed drives
