7015 ACDGA/HCP4A
Hybrid Ceramic Super Precision Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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Product Overview and Core Advantages
The 7015 ACDGA/HCP4A is a high-precision angular contact ball bearing designed for applications demanding exceptional accuracy and performance. This single bearing features an Extra Light (Class A) preload and a 25° contact angle, optimized for high rigidity and precise rotational control. Its open seal design, combined with a phenolic cage and ceramic balls, enables superior high-speed performance with a limiting speed of 28,000 rpm. As part of a Universal Matchable (SU) set, it allows for versatile configurations to handle complex combined loads, making it ideal for the most demanding precision machinery.
7015 ACDGA/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| 7015 | Basic designation: 75mm bore, 115mm OD, 20mm width |
| ACD | Angular Contact, 25° contact angle |
| GA | Extra Light Preload (Class A) |
| /HC | Hybrid Ceramic: Ceramic balls with steel rings |
| P4A | High Precision Tolerance Class (exceeding ABEC 7) |
Structural Features and Performance Benefits
High Rigidity and Precision: The 25° contact angle and Class A preload provide exceptional system stiffness and minimize axial/radial deflection under load, ensuring precise shaft positioning and repeatable accuracy.
Superior High-Speed Capability: The combination of a lightweight phenolic cage and low-density ceramic balls reduces centrifugal forces and operating temperatures, directly enabling the high limiting speed of 28,000 rpm.
Enhanced Load Capacity: With a radial dynamic load rating of 11,115 lbf and a static load rating of 10,462 lbf, this bearing is engineered to handle significant combined radial and axial loads simultaneously.
Universal Matching: The Universal Matchable (SU) designation means individual bearings are manufactured to be interchangeable in sets of two or more, allowing for simplified assembly of preloaded duplex or triplex arrangements to achieve specific stiffness and performance requirements.
7015 ACDGA/HCP4A Bearing Typical Application Areas
- High-Speed Machine Tool Spindles: For CNC machining centers, grinding spindles, and milling applications requiring high rigidity and rotational accuracy.
- Precision Instrumentation: Used in coordinate measuring machines (CMM) and optical positioning systems.
- High-Performance Motors and Drives: Ideal for servo motors and high-frequency spindles where speed and thermal stability are critical.
- Aerospace and Defense Systems: Applied in gyroscopes, navigation systems, and other critical rotating assemblies.
