71819 ACD/HCP4
Hybrid Ceramic Super Precision Bearings
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Main Dimensions
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71819 ACD/HCP4 Bearing Product Overview & Core Advantages
The 71819 ACD/HCP4 is a single-row angular contact ball bearing engineered for applications demanding high precision and superior performance under combined loads. Featuring a 25° contact angle and P4 (ABEC-7) tolerance class, this bearing is optimized to handle significant axial loads in one direction while supporting radial loads. Its ceramic ball construction and phenolic cage contribute to reduced weight, lower friction, and enhanced high-speed capability, making it ideal for precision spindles and other demanding rotational systems.
71819 ACD/HCP4 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71819 | Basic bearing designation (95mm bore, 120mm OD, 13mm width) |
| ACD | Angular Contact Design with 25° contact angle and optimized internal geometry |
| HCP4 | Hybrid Ceramic Precision - indicates ceramic balls and P4 tolerance class for superior precision and speed performance |
71819 ACD/HCP4 Bearing Structural Features & Performance Benefits
Hybrid Ceramic Construction: The combination of chrome steel rings and ceramic balls provides exceptional high-speed performance, reduced thermal expansion, and extended service life in demanding conditions.
Precision Engineering: Manufactured to P4 (ABEC-7) tolerance class with bore and outside diameter tolerances of -0.008mm to 0, ensuring precise fit and minimal runout for high-precision applications.
Optimized Cage Design: The phenolic cage offers excellent strength-to-weight ratio, reduced friction, and superior performance at the limiting speed of 17,000 rpm.
High Load Capacity: With a radial dynamic load rating of 4,680 lbf and radial static load rating of 5,738 lbf, this bearing delivers reliable performance under significant combined loads.
71819 ACD/HCP4 Bearing Typical Application Areas
- Machine Tool Spindles - High-speed machining centers and precision grinding applications
- Precision Instrumentation - Medical equipment, optical systems, and measuring devices
- Aerospace Components - Guidance systems, actuators, and auxiliary power units
- High-Speed Motors - Industrial spindles, robotics, and automation equipment
- Semiconductor Manufacturing - Wafer handling equipment and precision positioning systems
