S7013 CD/P4A
Sealed Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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S7013 CD/P4A Bearing Product Overview & Core Advantages
The S7013 CD/P4A is a single-row angular contact ball bearing engineered for high-precision applications requiring exceptional rotational accuracy and rigidity. Designed to accommodate combined loads (radial and axial) simultaneously, this bearing features a 15° contact angle optimized for high-speed operation. Its P4 (ABEC-7) tolerance class ensures minimal runout and vibration, making it ideal for demanding machinery where positional accuracy is critical. The phenolic cage and preloaded configuration contribute to its high rigidity and stable performance under complex loading conditions.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| S7013 | Basic bearing designation with 65mm bore, 100mm OD, 18mm width |
| CD | Contact angle designation (15°) and optimized internal design |
| P4A | Precision class P4 (ABEC-7) with specific tolerance and running accuracy |
S7013 CD/P4A Bearing Structural Features & Performance Benefits
High Precision Construction: Manufactured to P4 tolerance class with bore diameter tolerance of -0.007mm to 0 and outside diameter tolerance of -0.008mm to 0, ensuring exceptional dimensional stability and running accuracy.
Optimized Load Capacity: With a radial dynamic load rating of 9360 lbf and radial static load rating of 8438 lbf, this bearing handles significant combined loads while maintaining performance.
High-Speed Capability: The phenolic resin cage and 15° contact angle enable a limiting speed of 14,000 rpm, making it suitable for high-speed spindle applications.
Premium Material Selection: Constructed from chrome steel rings and balls for superior wear resistance and fatigue life, complemented by a lightweight phenolic cage that reduces centrifugal forces at high speeds.
Preload Configuration: The available preload ensures enhanced rigidity and minimal deflection under operational loads, critical for maintaining precision in machining applications.
S7013 CD/P4A Bearing Typical Application Areas
This precision angular contact bearing is specifically designed for applications requiring high rotational accuracy and speed:
- Machine Tool Spindles - High-speed machining centers and precision lathes
- Precision Grinding Spindles - Surface and cylindrical grinding applications
- High-Speed Motors - Servo motors and spindle drives
- Robotics - Precision joints and rotary actuators
- Medical Equipment - Dental handpieces and surgical tools
- Aerospace Components - Guidance systems and instrumentation
