7013 CEGA/P4A
7000 Series Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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7013 CEGA/P4A Bearing Product Overview & Core Advantages
The 7013 CEGA/P4A is a single-row angular contact ball bearing engineered for applications demanding ultra-high precision and exceptional rotational accuracy. Positioned in the P4A tolerance class, this bearing delivers superior dimensional stability and running accuracy. Its 15° contact angle is optimized to handle significant axial loads in one direction while accommodating combined radial and axial loads. The phenolic cage and universal matching (SU) capability make it ideal for high-speed spindle arrangements and precision machinery where rigidity and thermal stability are critical.
7013 CEGA/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7013 | Basic bearing designation: 65mm bore, 100mm OD, 18mm width |
| CE | Contact angle of 15° and enhanced internal design |
| GA | Universal matching bearing for preloaded arrangements |
| P4A | Super precision tolerance class with restricted runout tolerances |
7013 CEGA/P4A Bearing Structural Features & Performance Benefits
Precision Engineering: Manufactured to P4A tolerance class standards, ensuring minimal dimensional variation and superior running accuracy for high-precision applications.
High-Speed Capability: The phenolic resin cage provides excellent strength-to-weight ratio, reduced friction, and superior performance at limiting speeds up to 31,000 rpm.
Optimized Load Capacity: With a 15° contact angle and 25 high-precision chrome steel balls, this bearing delivers exceptional axial load capacity in one direction while effectively handling combined loads.
Universal Matching Design: As a Universal Matchable (SU) bearing, it can be paired in various preloaded configurations (up to 4 bearings in matched set) to achieve optimal system rigidity and performance.
Material Excellence: Constructed from chrome steel for both rings and balls, providing high hardness, wear resistance, and dimensional stability across the operating temperature range of -30°C to 110°C.
7013 CEGA/P4A Bearing Typical Application Areas
- Machine Tool Spindles: High-precision milling, grinding, and turning centers requiring exceptional accuracy and rigidity
- High-Speed Machining Centers: Applications demanding superior rotational precision at elevated speeds
- Precision Instrumentation: Measuring equipment, optical instruments, and laboratory apparatus
- Robotics and Automation: High-accuracy robotic joints and precision positioning systems
- Aerospace Components: Guidance systems, flight control mechanisms, and auxiliary power units
