S7011 CDGB/P4A
Sealed Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
S7011 CDGB/P4A
Basic Information
System of measurement
Metric
Weight
0.38 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
18 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
11.112 mm
Ball quantity
18
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
8932 lbf
Radial static load rating
7312 lbf
Limiting speed
46 X 1000 rpm
Lubrication
Grease
Matched arrangement
Single
Number of bearings in matched set
3
Universal matching bearing
Universal Matchable (SU)
Preload
Light / Class B
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.
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S7011 CDGB/P4A Bearing Product Overview & Core Advantages
The S7011 CDGB/P4A is a super-precision angular contact ball bearing designed for the most demanding high-speed and high-rigidity applications. As a universally matchable (SU) single bearing, it can be mounted in any combination (back-to-back, face-to-face, or tandem) to create a preloaded bearing set capable of withstanding combined loads, including radial and axial loads in both directions. Its P4A tolerance class and optimized internal geometry ensure exceptional running accuracy, low noise, and minimal heat generation, making it ideal for high-performance spindles and other precision machinery.
S7011 CDGB/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Advantage |
|---|---|---|
| C | 15° contact angle | Balanced capacity for radial and axial loads. |
| DGB | Universal Matchable (SU) bearing with Light preload (Class B) | Provides high rigidity and can be paired in any arrangement without performance loss. |
| P4A | Tolerance class superior to ABEC 7 / ISO P4 | Guarantees ultra-precise running accuracy and superior high-speed performance. |
S7011 CDGB/P4A Bearing Structural Features & Performance Benefits
- High Rigidity and Load Capacity: The light preload (Class B) eliminates internal clearance, resulting in significantly increased system stiffness. This allows the bearing to handle combined radial and axial loads effectively, ensuring precise shaft positioning and minimal deflection under operational stresses.
- Superior High-Speed Performance: The lightweight phenolic resin cage reduces centrifugal forces, while the optimized internal design and 15° contact angle minimize heat generation. This combination enables a high limiting speed of 46,000 rpm, making it a top choice for high-speed spindles.
- Precision and Durability: Manufactured to P4A tolerance standards with chrome steel rings and balls, this bearing delivers exceptional dimensional stability, long service life, and consistent performance in precision applications.
- Sealed and Grease-Lubricated: The integral seals protect against contamination, and the bearing is pre-lubricated with high-performance grease suitable for a wide temperature range from -30°C to 110°C, offering a maintenance-free, long-lasting solution.
S7011 CDGB/P4A Bearing Typical Application Areas
This precision angular contact ball bearing is engineered for high-performance applications, including:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- High-Frequency Motors and Spindles
- Precision Robotics: Joints and rotary actuators requiring high rigidity.
- Medical Equipment: Dental handpieces and small precision drives.
- Aerospace Instrumentation: Gyroscopes and other critical navigation systems.
