S7015 CDGB/P4A
Sealed Super Precision Angular Contact Ball Bearings
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S7015 CDGB/P4A Bearing Product Overview & Core Advantages
The S7015 CDGB/P4A is a super-precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and high-speed performance. As a universal matchable bearing, it can be supplied in sets of three for optimized preload and rigidity. Its key characteristics include the ability to handle combined radial and axial loads simultaneously, a 15° contact angle for high-speed operation, and a P4A tolerance class ensuring superior dimensional and running accuracy. This bearing is engineered for high reliability in the most demanding precision machinery.
S7015 CDGB/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S7015 | Super-precision angular contact bearing series with 75mm bore diameter. |
| C | 15° nominal contact angle. |
| DG | Universal matchable bearing designation. |
| B | Light preload / Class B. |
| P4A | High-precision tolerance class, tighter than ABEC 7. |
S7015 CDGB/P4A Bearing Structural Features & Performance Benefits
High Rigidity and Load Capacity: The angular contact design and universal matching capability allow for precise preload configuration in sets, resulting in a system with exceptionally high rigidity. This enables the bearing to effectively support combined radial and axial loads.
Superior High-Speed Performance: The phenolic resin cage is lightweight and robust, contributing to lower centrifugal forces and stable operation at the high limiting speed of 28,000 rpm. The optimized 15° contact angle further enhances high-speed capability.
Precision and Longevity: Manufactured to P4A tolerance class, this bearing guarantees minimal runout and vibration. The sealed design with pre-applied grease lubrication protects against contamination and provides reliable, long-term performance within a wide temperature range of -30°C to 110°C.
S7015 CDGB/P4A Bearing Typical Application Areas
- Machine Tool Spindles for milling, grinding, and turning centers
- High-Frequency Motors and precision spindles
- Robotic Arm Joints and precision gearboxes
- Medical Equipment such as dental handpieces and imaging devices
- Aerospace Actuation Systems and auxiliary power units
