S7006/VA9D1
Sealed Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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S7006/VA9D1 Bearing Product Overview & Core Advantages
The S7006/VA9D1 is a high-precision angular contact ball bearing designed for applications demanding exceptional rigidity and rotational accuracy. Engineered to simultaneously handle combined radial and axial loads, this bearing features a P4 tolerance class for superior running accuracy. Its universal matchable (SU) design allows for flexible mounting in preloaded arrangements, making it an ideal solution for high-speed spindles and other precision machinery where high rigidity and reliability are paramount.
S7006/VA9D1 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S7006 | Basic bearing designation (30mm bore, 55mm OD, 13mm width) |
| VA9 | Universal matchable bearing designation (SU) |
| D1 | Indicates specific internal design and preload level |
S7006/VA9D1 Bearing Structural Features & Performance Benefits
Precision Engineering: Manufactured to P4 tolerance class with tight dimensional control (bore/OD tolerance: -0.004mm to 0), ensuring minimal runout and vibration for superior positioning accuracy.
High Load Capacity: Features a 25° contact angle and optimized internal geometry, providing excellent performance under combined radial and axial loads with dynamic load rating of 3105 lbf and static load rating of 1721 lbf.
High-Speed Capability: Utilizes a phenolic resin cage that reduces centrifugal forces and friction, enabling operation at limiting speeds up to 100,500 rpm while maintaining stability.
Preload & Matching: Designed as universal matchable (SU) bearings, allowing for precise preload adjustment when mounted in pairs, significantly enhancing system rigidity and rotational accuracy.
Material Quality: Constructed from chrome steel for both rings and balls, providing excellent wear resistance and durability under demanding operating conditions.
S7006/VA9D1 Bearing Typical Application Areas
The S7006/VA9D1 is particularly suited for high-performance applications requiring precision and speed:
- Machine Tool Spindles - High-speed machining centers and grinding spindles
- Precision Instrumentation - Measuring equipment and laboratory instruments
- High-Speed Motors - Servo motors and spindle drives
- Medical Equipment - Dental handpieces and surgical tools
- Aerospace Components - Guidance systems and auxiliary power units
