7013 ACDGB/P4A
7000 Series Super Precision Angular Contact Ball Bearings
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7013 ACDGB/P4A Bearing Product Overview & Core Advantages
The 7013 ACDGB/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) in one direction, this bearing features a 25° contact angle and P4A super-precision tolerance class, making it ideal for machine tool spindles and other demanding equipment. Its light preload (Class B) ensures minimal deflection under operational stresses, while the universal matching (SU) capability allows for flexible mounting configurations in sets of three to handle complex load requirements.
7013 ACDGB/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7013 | Basic bearing series: 65 mm bore, 100 mm OD, 18 mm width |
| AC | Angular Contact design with 25° contact angle |
| DGB | Universal Matchable bearing (SU designation) for paired mounting |
| P4A | Super-precision tolerance class with enhanced running accuracy |
7013 ACDGB/P4A Bearing Structural Features & Performance Benefits
High Precision & Rigidity: Manufactured to P4A tolerance standards with bore and OD tolerances of -0.004mm to 0, this bearing delivers exceptional dimensional stability and minimal runout. The 25° contact angle provides optimal stiffness for combined load applications.
Superior Load Capacity: With a dynamic load rating of 8775 lbf and static load rating of 7988 lbf, this bearing reliably handles significant radial and axial loads simultaneously.
High-Speed Performance: The phenolic resin cage and precision-ground chrome steel balls (11.112 mm diameter) enable smooth operation at limiting speeds up to 31,000 rpm.
Thermal Stability: The phenolic cage material maintains dimensional integrity across the operating temperature range of -30°C to 110°C, ensuring consistent performance in varying thermal conditions.
7013 ACDGB/P4A Bearing Typical Application Areas
- Machine Tool Spindles: High-precision machining centers and CNC equipment requiring superior rotational accuracy
- Precision Grinding Spindles: Applications demanding minimal vibration and high rigidity
- High-Speed Motors: Industrial motors operating at elevated speeds with combined loading
- Robotic Systems: Precision joints and positioning mechanisms requiring reliable angular contact bearings
- Aerospace Components: Critical rotating assemblies where precision and reliability are paramount
