7210 ACDGB/VQ253
7200 & 7300 Series Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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7210 ACDGB/VQ253 Bearing Product Overview & Core Advantages
The 7210 ACDGB/VQ253 is a high-precision angular contact ball bearing designed for applications requiring exceptional rotational accuracy and rigidity. This single bearing features a 25° contact angle and Light preload (Class B), making it ideal for handling combined radial and axial loads simultaneously. Manufactured to P4A tolerance class, it delivers superior running accuracy and is universally matchable (SU), allowing for precise axial play adjustment when mounted with other bearings. Its optimized design ensures reliable performance in high-speed applications up to 46,000 rpm.
7210 ACDGB/VQ253 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7210 | Basic bearing designation (50mm bore, 90mm OD, 20mm width) |
| AC | Angular Contact design |
| DGB | Universal Matchable (SU) bearing set, Light preload (Class B) |
| VQ253 | Specific internal design and manufacturing process for high-precision performance |
7210 ACDGB/VQ253 Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The 25° contact angle and optimized internal geometry provide high resistance to deformation under load, enabling the bearing to support significant combined radial and axial loads (Dynamic: 9518 lbf, Static: 7312 lbf).
Precision & High-Speed Performance: Manufactured to P4A tolerance class with a phenolic resin cage, this bearing ensures minimal vibration and stable operation at limiting speeds of 46,000 rpm. The cage design reduces centrifugal forces and friction, contributing to the high-speed capability.
Superior Material Construction: Both rings and balls are made from high-grade Chrome Steel, providing excellent wear resistance and durability. The open design allows for customized lubrication strategies to suit specific application needs.
Universal Matching Capability (SU): As a universally matchable bearing, it can be paired with other identical bearings in any combination to achieve the desired preload and stiffness without selective assembly, simplifying installation and inventory management.
7210 ACDGB/VQ253 Bearing Typical Application Areas
- Machine Tool Spindles: High-precision machining centers, grinding spindles
- High-Speed Motors: Electric spindles, high-frequency motors
- Precision Instrumentation: Measuring equipment, optical scanners
- Robotics: Joint and arm articulation systems requiring high rigidity
- Aerospace Components: Gyroscopes, navigation systems
