7001 ACD/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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7001 ACD/P4A Bearing Product Overview & Core Advantages
The 7001 ACD/P4A is a single-row angular contact ball bearing designed for high-precision applications requiring exceptional rotational accuracy and rigidity. Engineered to support combined loads (simultaneous radial and axial loads), this bearing features a 25° contact angle optimized for handling significant axial loads in one direction. Manufactured to P4 (ABEC-7) tolerance class, it delivers superior running accuracy, making it ideal for high-speed spindle systems and precision machinery where minimal runout and vibration are critical.
7001 ACD/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Performance Benefit |
|---|---|---|
| ACD | 25° Contact Angle Design | Optimized for high axial load capacity and rigid support |
| P4A | P4 (ABEC-7) Tolerance Class with specific running accuracy requirements | Superior dimensional precision and reduced vibration for high-speed applications |
7001 ACD/P4A Bearing Structural Features & Performance Benefits
High-Precision Construction: Manufactured to P4 tolerance class with bore diameter tolerance of -0.004mm to 0 and outside diameter tolerance of -0.005mm to 0, ensuring exceptional dimensional stability and running accuracy.
Optimized Load Capacity: The 25° contact angle design provides excellent axial load carrying capacity (radial dynamic load rating: 981 lbf) while maintaining good radial load performance, ideal for combined loading conditions.
High-Speed Performance: Features a phenolic resin cage that reduces centrifugal forces and friction, enabling operation at limiting speeds up to 90,000 rpm. The optimized internal geometry minimizes heat generation at high rotational speeds.
Premium Material Selection: 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.
7001 ACD/P4A Bearing Typical Application Areas
- Machine Tool Spindles: High-speed machining centers and precision grinding spindles
- Precision Instrumentation: Measuring equipment, optical instruments, and laboratory apparatus
- High-Speed Motors: Servo motors, spindle motors, and high-frequency electric motors
- Medical Equipment: Dental handpieces, laboratory centrifuges, and surgical tools
- Aerospace Systems: Gyroscopes, navigation instruments, and auxiliary power units
