S71906/VA9D1
Sealed Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
S71906/VA9D1
Basic Information
System of measurement
Metric
Weight
0.049 kg
Tolerance class
P4
Seal type
Sealed
For load direction
Angular Contact
Main Dimensions
Bore diameter
30 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
47 mm
Outside diameter tolerance
-0.004mm to 0
Width
9 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
4.762 mm
Ball quantity
20
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
1521 lbf
Radial static load rating
968 lbf
Limiting speed
100.5 X 1000 rpm
Lubrication
Grease
Matched arrangement
Single
Number of bearings in matched set
2
Universal matching bearing
Universal Matchable (SU)
Preload
Available
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Phenolic
Technical Drawings
No drawings available at the moment, will be launched soon
In Stock
Price available upon request.
Our sales team will respond within 24 hours with a competitive quote tailored to your requirements.
REQUEST A QUOTE
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
S71906/VA9D1 Bearing Product Overview & Core Advantages
The S71906/VA9D1 is a precision angular contact ball bearing designed for applications demanding high rotational accuracy and rigidity. As a single bearing from a universally matchable (SU) set, it excels in handling combined radial and axial loads simultaneously. Its compact design, featuring a 9 mm width, makes it ideal for space-constrained, high-precision assemblies requiring superior performance and reliability under demanding operational conditions.
S71906/VA9D1 Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Performance Implication |
|---|---|---|
| S7 | Precision Series | Denotes a high-precision bearing series. |
| 1906 | Size Designation | Indicates a 30 mm bore, 47 mm OD, and 9 mm width. |
| VA9D1 | Universal Matching & Preload | Signifies a universally matchable (SU) bearing supplied with a specific preload (D1). This allows for precise axial play adjustment when mounted with a second, identical bearing. |
S71906/VA9D1 Bearing Structural Features & Performance Benefits
- High Rigidity and Load Capacity: The 25° contact angle and robust construction enable the bearing to support significant combined loads, offering high system rigidity.
- High-Speed Performance: The lightweight phenolic resin cage minimizes centrifugal forces, contributing to the high limiting speed of 100,500 rpm. This makes it a capable high-speed bearing.
- Precision and Accuracy: Manufactured to P4 tolerance class with tight dimensional tolerances, ensuring exceptional running accuracy and minimal vibration for precision applications.
- Sealed and Lubricated for Life: As a sealed bearing pre-lubricated with grease, it is protected from contamination and is maintenance-free within its specified temperature range of -30°C to 110°C.
- Optimized Internal Geometry: With 20 precision balls of 4.762 mm diameter, the bearing provides smooth operation and high dynamic load capacity.
S71906/VA9D1 Bearing Typical Application Areas
This high-precision angular contact bearing is ideally suited for:
- Machine Tool Spindles
- High-Frequency Spindles
- Precision Grinding Equipment
- Industrial Pumps and Compressors
- Robotic Arms and Precision Gearboxes
