71916 ACB/P4A
71900 Series Super Precision Angular Contact Ball Bearings
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71916 ACB/P4A Bearing Product Overview & Core Advantages
The 71916 ACB/P4A is a single-row angular contact ball bearing designed for high-precision applications requiring exceptional rotational accuracy and rigidity. Engineered to P4 (ABEC-7) tolerance class, this bearing is optimized to handle significant combined loads (radial and axial) in one direction, making it ideal for high-speed spindles and precision machinery. Its phenolic resin cage and preload availability contribute to superior high-speed performance and system stability.
71916 ACB/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71916 | Basic bearing designation indicating dimensions (80mm bore, 110mm OD, 16mm width) |
| ACB | Angular Contact Bearing with a 25° contact angle and specific internal design |
| P4A | Indicates P4 (ABEC-7) tolerance class with specific running accuracy requirements |
71916 ACB/P4A Bearing Structural Features & Performance Benefits
High Precision & Rigidity: Manufactured to P4 tolerance class with precise bore diameter tolerance (-0.007mm to 0) and optimized internal geometry, ensuring minimal runout and vibration for demanding applications.
Superior Load Capacity: The 25° contact angle and 34 chrome steel balls enable excellent combined load handling, with dynamic load rating of 3330 lbf and static load rating of 3150 lbf.
High-Speed Performance: The phenolic resin cage provides excellent strength-to-weight ratio and reduced friction, supporting limiting speeds up to 22,000 rpm.
Pre-application Flexibility: As an open bearing, it allows for custom lubrication schemes tailored to specific operating conditions and temperature ranges (-30° to 110°C).
71916 ACB/P4A Bearing Typical Application Areas
- Machine Tool Spindles - High-speed milling and grinding applications
- Precision Instrumentation - Measuring equipment and optical devices
- High-Speed Motors - Industrial motors and servo drives
- Medical Equipment - Dental handpieces and surgical tools
- Aerospace Components - Guidance systems and auxiliary power units
