S7011 FE/HCPA9ADBA
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
S7011 FE/HCPA9ADBA
Basic Information
System of measurement
Metric
Weight
0.75 kg
Tolerance class
PA9A
Seal type
Sealed
For load direction
Angular Contact
Main Dimensions
Bore diameter
55 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
90 mm
Outside diameter tolerance
-0.004mm to 0
Width
36 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°C to 110 °C
Radial dynamic load rating
6075 lbf
Radial static load rating
5400 lbf
Limiting speed
46 X 1000 rpm
Lubrication
Grease
Matched arrangement
Duplex Back-to-Back (DB)
Number of bearings in matched set
2
Universal matching bearing
No (Standard)
Preload
Extra light / Class A
Materials
Ring material
Chrome Steel
Ball material
Ceramic
Cage material
Phenolic
Technical Drawings
No drawings available at the moment, will be launched soon
In Stock
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S7011 FE/HCPA9ADBA Bearing Product Overview & Core Advantages
The S7011 FE/HCPA9ADBA is a precision duplex angular contact ball bearing designed for applications demanding exceptional rotational accuracy and rigidity. This matched back-to-back (DB) arrangement provides superior stability and can accommodate combined radial and axial loads from both directions. Manufactured to PA9A tolerance class with a ceramic ball and phenolic cage construction, it delivers outstanding high-speed performance and long-term operational reliability in critical machinery.
S7011 FE/HCPA9ADBA Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Performance Benefit |
|---|---|---|
| FE | Sealed bearing | Provides effective contamination protection and retains lubrication |
| HC | Hybrid Ceramic (Silicon Nitride balls) | Enables higher speed capability, reduced weight, and longer service life |
| PA9A | Extra Light Preload / Class A | Minimizes axial and radial play for precise shaft positioning |
| DB | Duplex Back-to-Back arrangement | Provides high moment rigidity and accommodates overturning moments |
| A | 30° contact angle (standard) | Optimized for combined loading conditions |
S7011 FE/HCPA9ADBA Bearing Structural Features & Performance Benefits
- High Rigidity & Stability: The duplex back-to-back (DB) configuration creates a rigid bearing system that effectively resists moment loads and maintains precise shaft alignment under combined loading conditions.
- Enhanced Speed Performance: The combination of ceramic balls (lower density, reduced centrifugal force) and phenolic resin cage enables operation at limiting speeds up to 46,000 rpm, making it ideal for high-speed applications.
- Superior Load Capacity: With a dynamic load rating of 6,075 lbf and static load rating of 5,400 lbf, this bearing delivers reliable performance under significant radial and axial loads.
- Precision Engineering: Manufactured to PA9A tolerance class with tight dimensional control (bore and OD tolerance: -0.004mm to 0) ensures consistent high-precision performance in demanding applications.
- Maintenance-Free Operation: The integrated seals (FE) and factory-applied grease provide long-term lubrication retention and protection against contaminants throughout the operating temperature range of -30°C to 110°C.
S7011 FE/HCPA9ADBA Bearing Typical Application Areas
- Machine Tool Spindles: High-speed machining centers, grinding spindles, and precision milling applications
- Precision Instrumentation: Measuring equipment, optical scanners, and laboratory instruments
- High-Speed Rotating Systems: Turbochargers, small turbine systems, and specialized pumps
- Semiconductor Manufacturing: Wafer handling robots, precision positioning stages
- Aerospace Components: Guidance systems, actuator mechanisms, and auxiliary power units
