7008 ACD/P4ATGC
7000 Series Super Precision Angular Contact Ball Bearings
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7008 ACD/P4ATGC Bearing Product Overview & Core Advantages
The 7008 ACD/P4ATGC is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional rotational accuracy and rigidity. This universally matchable (SU) bearing features a 25° contact angle and moderate preload (Class C), enabling it to handle combined radial and axial loads simultaneously. Manufactured to P4A tolerance class, it delivers superior running accuracy and is ideally suited for high-speed spindles and precision machinery where high rigidity and reliable performance are critical.
7008 ACD/P4ATGC Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Performance Benefit |
|---|---|---|
| ACD | 25° Contact Angle, Universal Matchable Design | Optimized for combined loads and flexible mounting arrangements |
| P4A | High Precision Tolerance Class | Exceptional running accuracy and dimensional stability |
| TGC | Phenolic Cage Material | Enhanced high-speed performance with reduced friction |
7008 ACD/P4ATGC Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The optimized 25° contact angle and precision ground raceways provide superior stiffness, enabling the bearing to withstand significant combined loads while maintaining dimensional stability under operating conditions.
High-Speed Performance: The phenolic cage (TGC) offers excellent strength-to-weight ratio and smooth operation at high rotational speeds, contributing to the bearing's limiting speed of 56,000 rpm. The open design facilitates efficient lubrication management.
Precision Engineering: Manufactured to P4A tolerance class with tight dimensional controls on bore diameter (40 mm), outside diameter (68 mm), and width (45 mm), ensuring consistent performance in precision applications.
Universal Matching Capability: As a universally matchable (SU) bearing, multiple units can be arranged in sets to achieve specific preload and stiffness requirements, providing design flexibility for complex spindle configurations.
7008 ACD/P4ATGC Bearing Typical Application Areas
- Machine Tool Spindles: High-speed machining centers, grinding spindles, and precision lathes
- Precision Industrial Equipment: High-frequency motors, precision measuring instruments
- Automated Manufacturing Systems: Robotics, CNC machining centers, and assembly automation
- Aerospace Components: Guidance systems, flight control mechanisms
- Medical Equipment: High-speed dental handpieces, laboratory instrumentation
