S71924 CE/HCP4A
Hybrid Ceramic Super Precision Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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S71924 CE/HCP4A Bearing Product Overview & Core Advantages
The S71924 CE/HCP4A is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy and performance. Engineered to accommodate combined loads (simultaneous radial and axial loads), this bearing features a 15° contact angle for optimal thrust capacity. Its single-row design with a phenolic cage and ceramic balls enables superior high-speed performance, achieving a limiting speed of 12,700 rpm. Manufactured to P4 (ABEC-7) tolerance class, it ensures minimal runout and vibration, making it ideal for high-rigidity, high-reliability spindle and precision machinery applications.
Model Code Breakdown
| Suffix Code | Technical Meaning | Advantage |
|---|---|---|
| S | Stainless Steel Bearing Series | Enhanced corrosion resistance |
| 71924 | Bore: 120 mm, OD: 165 mm, Width: 22 mm | Compact bearing dimensions |
| CE | Contact Angle 15° | Optimized for combined loads |
| HC | Hybrid Ceramic (Ceramic Balls) | Reduced weight, higher speed capability, electrical insulation |
| P4A | ABEC-7 / P4 Tolerance Class | Ultra-precision bearing for minimal vibration |
S71924 CE/HCP4A Bearing Structural Features & Performance Benefits
- Hybrid Ceramic Construction: The combination of chrome steel rings and silicon nitride (Si3N4) ceramic balls significantly reduces centrifugal forces, lowers operating temperature, and extends bearing life, especially under high-speed conditions.
- Phenolic Resin Cage: This lightweight, high-strength cage (Polyamide 4,6) offers excellent guidance and stability, contributing to smooth operation and superior acceleration capabilities at extreme speeds.
- Precision P4 Grade: Manufactured to the strictest dimensional and running accuracy tolerances (P4/ABEC-7), this bearing ensures high rigidity and positional accuracy, critical for spindle applications.
- Pre-lubricated & Sealed: The bearing comes lubricated and sealed from factory, protecting against contamination and providing maintenance-free operation within its specified temperature range (-30°C to 110°C).
S71924 CE/HCP4A Bearing Typical Application Areas
The S71924 CE/HCP4A is ideally suited for high-performance machinery where speed, precision, and reliability are paramount. Key industries and equipment include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Robotics: Arm joints and high-accuracy positioning systems.
- Medical Equipment: Dental handpieces, high-speed centrifuges.
- Aerospace & Defense: Gyroscopes, navigation systems, and auxiliary power units (APUs).
- Semiconductor Manufacturing: Wafer handling robots and precision stages.
