S7011 FW/HC
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
S7011 FW/HC
Basic Information
System of measurement
Metric
Weight
0.37 kg
Tolerance class
P4 (ABEC-7)
Seal type
Sealed
For load direction
Angular Contact
Main Dimensions
Bore diameter
55 mm
Bore diameter tolerance
-0.007mm to 0
Outside diameter
90 mm
Outside diameter tolerance
-0.008mm to 0
Width
18 mm
Width tolerance
-0.2mm to 0
Contact angle
18 °
Ball & Washer Dimensions
Ball diameter
7.938 mm
Ball quantity
24
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
3712 lbf
Radial static load rating
2700 lbf
Limiting speed
22 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Single
Preload
Available
Materials
Ring material
Chrome Steel
Ball material
Ceramic
Cage material
Phenolic
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 433.99
/ each
In Stock
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S7011 FW/HC Bearing Product Overview & Core Advantages
The S7011 FW/HC is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional speed capability and rigidity. This single-row bearing is distinguished by its ceramic balls and phenolic resin cage, enabling superior performance in high-speed environments. Engineered to accommodate combined loads (radial and axial), it features a P4 (ABEC-7) tolerance class for outstanding running accuracy and is preloaded to ensure maximum system stiffness and rotational precision.
S7011 FW/HC Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S7011 | Basic bearing series and size designation. |
| FW | Indicates a phenolic resin (fiberglass reinforced) cage, which is lightweight and ideal for high-speed operation. |
| HC | Signifies the use of Hybrid Ceramic balls (ceramic balls with steel rings), reducing centrifugal forces, lowering operating temperature, and extending service life at high speeds. |
S7011 FW/HC Bearing Structural Features & Performance Benefits
- High-Speed Performance: The combination of ceramic balls and a lightweight phenolic cage significantly reduces centrifugal forces and friction, allowing for a high limiting speed of 22,000 rpm.
- High Rigidity & Precision: The bearing is supplied with preload, which eliminates internal clearance. This enhances system rigidity, improves rotational accuracy, and dampens vibrations, making it suitable for precision applications.
- Superior Load Capacity: With an 18° contact angle, this bearing is optimized to handle significant axial loads in one direction in addition to radial loads, offering excellent performance under combined loading conditions.
- Extended Service Life: Hybrid ceramic construction provides inherent resistance to wear and tear, and the sealed design helps retain lubrication and exclude contaminants, ensuring long-term reliability.
S7011 FW/HC Bearing Typical Application Areas
This high-performance angular contact ball bearing is ideally suited for:
- High-Speed Machine Tool Spindles
- Precision Grinding Spindles
- High-Frequency Motors and Spindles
- Advanced Robotics and Automation
- Aerospace Actuators and Control Systems
