S7011 CE/P4ADBB
Sealed Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
S7011 CE/P4ADBB
Basic Information
System of measurement
Metric
Weight
0.81 kg
Tolerance class
P4A
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
15 °
Ball & Washer Dimensions
Ball diameter
7.938 mm
Ball quantity
24
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
6210 lbf
Radial static load rating
5512 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
Light / Class B
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Phenolic
Technical Drawings
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In Stock
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S7011 CE/P4ADBB Bearing Product Overview & Core Advantages
The S7011 CE/P4ADBB is a precision duplex angular contact ball bearing designed for applications requiring exceptional rotational accuracy and rigidity. This matched back-to-back arrangement provides superior stability and can accommodate combined loads (radial and axial loads from both directions simultaneously). Manufactured to P4A tolerance class, it delivers high running accuracy, making it ideal for high-speed spindles and other demanding precision machinery.
S7011 CE/P4ADBB Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S7011 | Basic bearing series, indicating a 55mm bore, 90mm OD, and 36mm width. |
| CE | Indicates a 15° contact angle and specific internal design optimizations. |
| P4A | Denotes a high-precision tolerance class with enhanced dimensional and running accuracy. |
| DBB | Specifies a Duplex Back-to-Back (DB) matched set arrangement, preloaded for high rigidity. |
S7011 CE/P4ADBB Bearing Structural Features & Performance Benefits
- High Rigidity & Stability: The duplex back-to-back (DB) arrangement creates a wide, rigid support system that effectively resists overturning moments, ensuring exceptional operational stability under heavy or variable loads.
- Superior Load Capacity: The 15° contact angle design is optimized to handle significant combined radial and axial loads from both directions, making it suitable for complex loading conditions.
- Optimized High-Speed Performance: The lightweight phenolic resin cage reduces centrifugal forces, while the precision-ground components and optimized internal geometry contribute to a high limiting speed of 46,000 rpm.
- Sealed & Pre-Lubricated: As a sealed bearing pre-lubricated with grease, it is protected from contamination and offers long-term, maintenance-free operation within its specified temperature range.
S7011 CE/P4ADBB Bearing Typical Application Areas
This bearing is engineered for high-performance applications, including:
- Machine Tool Spindles: For CNC machining centers, grinding spindles, and milling heads requiring high precision and speed.
- High-Frequency Motors & Spindles: Where minimal runout and high rotational accuracy are critical.
- Precision Gearboxes & Drive Systems: To support shafts under combined loads with high rigidity.
- Medical & Laboratory Equipment: In centrifuges and other devices demanding quiet, reliable, and precise rotation.
