7013 ACEGA/P4AH1
7000 Series Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
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Materials
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7013 ACEGA/P4AH1 Bearing Product Overview & Core Advantages
The 7013 ACEGA/P4AH1 is a precision single-row angular contact ball bearing designed for applications requiring exceptional rotational accuracy and high-speed performance. Manufactured to P4A tolerance class with an Extra Light (A) preload, this bearing delivers superior running precision and rigidity. Its 25° contact angle is optimized to handle significant axial loads in one direction while supporting radial loads, making it ideal for high-precision spindles and other demanding applications. The universal matchable (SU) design allows for flexible mounting arrangements in pairs to accommodate combined loads.
7013 ACEGA/P4AH1 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7013 | Basic bearing series, 65mm bore, 100mm OD, 18mm width |
| AC | 25° contact angle design |
| EGA | Universal matchable bearing (SU designation) |
| P4A | High precision tolerance class with specific running accuracy requirements |
| H1 | Stabilization treatment for dimensional stability during operation |
7013 ACEGA/P4AH1 Bearing Structural Features & Performance Benefits
Precision Engineering: Manufactured to P4A tolerance class with exceptionally tight dimensional tolerances (bore/OD: -0.004mm to 0) ensuring minimal runout and vibration for superior rotational accuracy.
High-Speed Capability: Features a phenolic resin cage that reduces centrifugal forces and friction, enabling operation at limiting speeds up to 31,000 rpm. The optimized 25° contact angle provides excellent high-speed performance while maintaining axial load capacity.
Enhanced Rigidity: The extra light preload (Class A) eliminates internal clearance, providing immediate response and increased system stiffness critical for precision applications.
Superior Material Quality: Constructed from chrome steel for both rings and balls, ensuring high durability, wear resistance, and consistent performance under demanding conditions.
Thermal Stability: The H1 stabilization treatment ensures dimensional stability across the operating temperature range of -30°C to 110°C, maintaining precision under thermal variations.
7013 ACEGA/P4AH1 Bearing Typical Application Areas
Machine Tool Spindles: High-precision machining centers, grinding spindles, and CNC milling machines requiring exceptional rotational accuracy and rigidity.
High-Speed Motors: Precision electric motors, high-frequency spindles, and servo drives where minimal vibration and high rotational speeds are critical.
Precision Instruments: Measuring equipment, optical instruments, and laboratory apparatus demanding the highest levels of running accuracy.
Aerospace Components: Guidance systems, gyroscopes, and other aerospace applications requiring reliable performance under extreme conditions.
Medical Equipment: High-speed dental handpieces, laboratory centrifuges, and medical imaging devices where precision and reliability are paramount.
