S7015 CDGA/HCP4A
Hybrid Ceramic Super Precision Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
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S7015 CDGA/HCP4A Bearing Product Overview & Core Advantages
The S7015 CDGA/HCP4A is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy and performance. Engineered with a 15° contact angle and manufactured to ABEC 7 / P4A tolerance class, this bearing delivers superior running accuracy and dimensional stability. Its ceramic balls and phenolic cage contribute to outstanding high-speed capabilities and reduced rotational mass. As a Universal Matchable (SU) bearing supplied in sets of three, it enables precise preload configuration for optimal system rigidity and minimal runout, making it ideal for high-reliability, high-speed spindle applications.
S7015 CDGA/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Performance Benefit |
|---|---|---|
| CDGA | Universal Matchable bearing set with specific internal clearance and preload | Enables precise bearing arrangement for optimal system stiffness and minimal runout |
| HC | Hybrid Ceramic construction (steel rings with ceramic balls) | Enhanced high-speed performance, reduced friction, and longer service life |
| P4A | ABEC 7 / ISO P4A precision tolerance class | Superior running accuracy and dimensional stability for precision applications |
S7015 CDGA/HCP4A Bearing Structural Features & Performance Benefits
Hybrid Ceramic Design: The combination of chrome steel rings with silicon nitride ceramic balls provides exceptional high-speed performance, reduced centrifugal forces, and improved durability under demanding conditions. The ceramic balls also offer electrical insulation properties and superior corrosion resistance.
Phenolic Resin Cage: The phenolic cage material ensures excellent dimensional stability at high speeds while providing reduced weight and superior lubrication retention compared to metal cages.
Precision Engineering: Manufactured to P4A tolerance class with tight dimensional controls on bore diameter, outside diameter, and width, ensuring consistent performance and easy installation in precision applications.
Universal Matching Capability: As part of a matched set of three bearings, the S7015 CDGA/HCP4A allows for precise preload adjustment and optimal load distribution in multi-bearing arrangements.
S7015 CDGA/HCP4A Bearing Typical Application Areas
- Machine Tool Spindles: High-speed machining centers, grinding spindles, and precision milling applications
- High-Speed Motors: CNC spindle motors, high-frequency motors, and precision servo drives
- Aerospace Components: Guidance systems, aircraft instrumentation, and precision actuators
- Medical Equipment: Dental handpieces, surgical tools, and diagnostic imaging systems
- Semiconductor Manufacturing: Wafer handling equipment, precision positioning stages, and cleanroom applications
