7209 ACDGA/VQ126
7200 & 7300 Series Super Precision Angular Contact Ball Bearings
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7209 ACDGA/VQ126 Bearing Product Overview & Core Advantages
The 7209 ACDGA/VQ126 is a precision angular contact ball bearing designed for applications demanding exceptional accuracy and reliability. Engineered to accommodate combined loads (simultaneous radial and axial loads), this bearing features a 25° contact angle optimized for high axial load capacity. Manufactured to P4A tolerance class, it delivers superior running accuracy and rotational precision. Its phenolic cage contributes to smooth operation at high speeds, while the universal matching (SU) capability allows for flexible mounting configurations in preloaded arrangements.
7209 ACDGA/VQ126 Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Performance Benefit |
|---|---|---|
| ACD | 25° Contact Angle Design | Optimized for high axial load capacity |
| GA | Light Preload Class A | Reduces deflection, improves rigidity |
| VQ126 | Special Precision Grade | Enhanced running accuracy and stability |
7209 ACDGA/VQ126 Bearing Structural Features & Performance Benefits
High Precision Construction: Manufactured to P4A tolerance class with bore and outside diameter tolerances of -0.004mm to 0, ensuring exceptional dimensional accuracy and runout performance.
Optimized Load Capacity: The 25° contact angle and 14 chrome steel balls (12.7mm diameter) provide excellent combined load handling with dynamic load rating of 9225 lbf and static load rating of 6750 lbf.
High-Speed Capability: The phenolic cage enables smooth operation at limiting speeds up to 41,000 rpm, reducing friction and heat generation.
Precision Matching: As a universal matchable (SU) bearing supplied in sets of 3, it allows for flexible mounting arrangements with controlled preload for optimal system stiffness.
7209 ACDGA/VQ126 Bearing Typical Application Areas
- Machine Tool Spindles - High-precision machining centers and grinding spindles
- Precision Instrumentation - Measuring equipment and optical devices
- High-Speed Motors - Servo motors and spindle drives
- Aerospace Components - Guidance systems and precision mechanisms
- Medical Equipment - Dental handpieces and surgical tools
