7015 ACEGA/HCP4A
Hybrid Ceramic Super Precision Bearings
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7015 ACEGA/HCP4A Bearing Product Overview & Core Advantages
The 7015 ACEGA/HCP4A is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy and performance. Engineered with ceramic balls and manufactured to P4A super-precision tolerance, this bearing delivers superior high-speed capability and rigidity. Its 25° contact angle is optimized to handle significant combined loads, including radial and axial loads in one direction. The phenolic resin cage and factory-applied lubrication ensure reliable operation at limiting speeds up to 31,000 rpm, making it ideal for high-performance spindles and precision machinery.
7015 ACEGA/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7015 | Standard bearing series designation with 75mm bore, 115mm OD, 20mm width |
| AC | Angular Contact design with 25° contact angle |
| EGA | Extra Light Preload (Class A) |
| HC | Hybrid Ceramic construction with ceramic balls |
| P4A | Super Precision tolerance class |
7015 ACEGA/HCP4A Bearing Structural Features & Performance Benefits
Hybrid Ceramic Construction: The combination of chrome steel rings and silicon nitride ceramic balls provides exceptional high-speed performance, reduced friction, and extended service life. Ceramic balls offer superior thermal stability and electrical resistance.
Precision Engineering: Manufactured to P4A tolerance class with tight dimensional control (bore/OD tolerance: -0.004mm to 0), ensuring minimal runout and vibration for ultra-precise applications.
Optimized Cage Design: The phenolic resin cage delivers excellent strength-to-weight ratio, reduced centrifugal forces, and superior performance at limiting speeds of 31,000 rpm.
Universal Matching Capability: Designed as Universal Matchable (SU), these bearings can be paired in sets of 2 to handle bidirectional axial loads and provide preload optimization for specific application requirements.
7015 ACEGA/HCP4A Bearing Typical Application Areas
- Machine Tool Spindles: High-speed machining centers, grinding spindles, and CNC milling machines
- Precision Robotics: Robotic arm joints and precision positioning systems
- Aerospace Systems: Gyroscopes, navigation instruments, and aircraft control systems
- Medical Equipment: Dental handpieces, surgical tools, and diagnostic imaging systems
- High-Speed Motors: Spindle motors, high-frequency generators, and precision drives
