7015 CD/P4A
7000 Series Super Precision Angular Contact Ball Bearings
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Main Dimensions
Ball & Washer Dimensions
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Materials
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7015 CD/P4A Bearing Product Overview & Core Advantages
The 7015 CD/P4A is a single-row angular contact ball bearing engineered for high-precision applications requiring exceptional rotational accuracy and rigidity. This precision bearing features a 15° contact angle and is supplied with P4 (ABEC-7) tolerance class, making it ideal for machine tool spindles and other high-speed equipment. Its design is optimized to support combined loads, efficiently carrying significant radial loads and axial loads in one direction simultaneously. The phenolic cage and pre-lubrication contribute to its outstanding high-speed performance, with a limiting speed of 18,000 rpm.
7015 CD/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7015 | Basic bearing series, indicating a 75 mm bore diameter, 115 mm outside diameter, and 20 mm width. |
| CD | Designates a high rigidity construction with optimized internal geometry and a 15° contact angle. |
| P4 | Indicates a P4 tolerance class (equivalent to ABEC-7), ensuring ultra-precise running accuracy and dimensional stability. |
| A | Signifies that the bearing is supplied with a preload for enhanced stiffness and precise shaft positioning. |
7015 CD/P4A Bearing Structural Features & Performance Benefits
High Rigidity and Precision: The angular contact design with a 15° contact angle and preload provides superior axial and radial stiffness, minimizing deflection under load for exceptional machining accuracy.
Optimized Load Capacity: Engineered to handle combined radial and axial loads simultaneously. With a dynamic load rating of 11,858 lbf and a static load rating of 11,025 lbf, it offers reliable performance in demanding conditions.
Superior High-Speed Performance: The lightweight phenolic resin cage ensures stability and low friction at high rotational speeds, supporting the limiting speed of 18,000 rpm. The bearing is pre-lubricated for immediate operation.
Premium Material Construction: Manufactured from chrome steel for rings and balls, providing high fatigue resistance and durability, suitable for a temperature range of -30°C to 110°C.
7015 CD/P4A Bearing Typical Application Areas
- Machine Tool Spindles: High-precision milling, grinding, and turning centers.
- High-Speed Machining Centers: Applications requiring exceptional rotational accuracy and rigidity.
- Precision Instrumentation: High-performance measuring and testing equipment.
- Industrial Pumps and Compressors: For shaft support in high-speed rotary systems.
