7008 ACD/P4ATGA
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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7008 ACD/P4ATGA Bearing Product Overview & Core Advantages
The 7008 ACD/P4ATGA is a high-precision angular contact ball bearing designed for applications demanding exceptional accuracy and reliability. Engineered to accommodate combined loads (simultaneous radial and axial forces), this bearing features a 25° contact angle optimized for handling significant axial loads in one direction. Its P4A tolerance class ensures ultra-precise dimensional and running accuracy, making it ideal for high-speed spindles and precision machinery. The universal matchable (SU) design allows bearings to be mounted in any combination without preload variation, simplifying installation and enhancing performance consistency in high-rigidity applications.
7008 ACD/P4ATGA Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Performance Benefit |
|---|---|---|
| ACD | 25° Contact Angle, Universal Matchable Design | Optimized for axial load capacity and flexible mounting configurations |
| P4A | Super Precision Tolerance Class | Ensures extreme running accuracy and minimal vibration for precision applications |
7008 ACD/P4ATGA Bearing Structural Features & Performance Benefits
High-Precision Construction: Manufactured to P4A tolerance standards with bore and outside diameter tolerances of -0.004mm to 0, ensuring exceptional dimensional stability and running accuracy.
Optimized Load Capacity: The 25° contact angle and chrome steel construction provide superior axial load carrying capacity while maintaining excellent radial load performance (dynamic: 7762 lbf, static: 6975 lbf).
High-Speed Capability: The phenolic cage and precision engineering enable a limiting speed of 56,000 rpm, making it suitable for high-speed spindle applications.
Universal Matching Design: The SU (Universal Matchable) feature allows for flexible bearing arrangements in sets of three, maintaining consistent preload characteristics regardless of mounting orientation.
Premium Material Selection: Constructed from chrome steel for both rings and balls, providing excellent wear resistance and durability in demanding operating conditions.
7008 ACD/P4ATGA Bearing Typical Application Areas
- Machine Tool Spindles: High-precision machining centers, grinding spindles, and CNC milling machines
- High-Speed Motors: Precision electric motors and spindle drives requiring minimal runout
- Precision Instrumentation: Measuring equipment, optical instruments, and laboratory apparatus
- Aerospace Components: Gyroscopes, navigation systems, and aircraft control mechanisms
- Medical Equipment: High-speed dental handpieces, surgical tools, and diagnostic imaging systems
