S71924 CD/HCP4ADT
Hybrid Ceramic Super Precision Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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S71924 CD/HCP4ADT Bearing Product Overview & Core Advantages
The S71924 CD/HCP4ADT is a super-precision angular contact ball bearing designed for the most demanding high-speed and high-rigidity applications. As part of a duplex tandem (DT) matched set, this bearing is preloaded to deliver exceptional rotational accuracy and system stiffness. Its construction, featuring ceramic balls and a phenolic cage, enables superior performance under high-speed conditions while managing significant combined loads. This bearing is the ideal solution for machine tool spindles and other precision equipment requiring maximum rigidity and speed capability.
S71924 CD/HCP4ADT Bearing Model Code Explained, Specifications & Naming Convention
- S7: High-precision bearing series
- 1924: Dimension series (Bore: 120mm, OD: 165mm, Width: 44mm)
- C: 15° contact angle
- D: Duplex bearing designation
- HC: Hybrid Ceramic (steel rings with ceramic balls)
- P4A: Ultra-precision tolerance class (superior to ABEC 7)
- DT: Duplex Tandem arrangement (matched set of 2 bearings)
S71924 CD/HCP4ADT Bearing Structural Features & Performance Benefits
Hybrid Ceramic Construction: The combination of chrome steel rings and silicon nitride ceramic balls significantly reduces centrifugal forces, enabling higher limiting speeds while providing electrical insulation properties.
Enhanced Rigidity & Load Capacity: The duplex tandem arrangement with preload delivers maximum axial stiffness, capable of handling combined radial and axial loads simultaneously. With a dynamic load rating of 28,125 lbf and static load rating of 41,175 lbf, this bearing maintains precision under heavy cutting forces.
Superior High-Speed Performance: The lightweight phenolic resin cage and ceramic balls work in synergy to achieve a remarkable limiting speed of 11,000 rpm, while the P4A tolerance class ensures minimal vibration and heat generation.
Pre-optimized Lubrication: Factory-applied high-speed grease is specifically formulated for the operational temperature range of -30°C to 110°C, providing immediate readiness for installation and operation.
S71924 CD/HCP4ADT Bearing Typical Application Areas
The S71924 CD/HCP4ADT excels in applications requiring the highest levels of precision and speed:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers
- Precision Robotics: High-accuracy robot arm joints and rotary tables
- Aerospace Components: Gyroscopes, navigation systems, and auxiliary power units
- Medical Equipment: High-speed dental handpieces and surgical drill systems
- Semiconductor Manufacturing: Wafer handling robots and precision positioning stages
