S71912 CD/P4ADGB
Sealed Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
S71912 CD/P4ADGB
Basic Information
System of measurement
Metric
Weight
0.39 kg
Tolerance class
P4A
Seal type
Sealed
For load direction
Angular Contact
Main Dimensions
Bore diameter
60 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
85 mm
Outside diameter tolerance
-0.004mm to 0
Width
26 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
7178 lbf
Radial static load rating
6975 lbf
Limiting speed
32.5 X 1000 rpm
Lubrication
Grease
Matched arrangement
Universal Matchable (SU)
Number of bearings in matched set
2
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
Price:
$ 232.44
/ each
In Stock
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S71912 CD/P4ADGB Bearing Product Overview & Core Advantages
The S71912 CD/P4ADGB is a precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and high-speed performance. Manufactured to P4A tolerance class, this bearing offers superior dimensional stability and running accuracy. Its universal matchable (SU) design allows for flexible mounting arrangements in pairs to support combined loads, handling both radial and axial forces simultaneously. With a light preload (Class B) and sealed construction, it delivers high rigidity and reliable, long-term performance in demanding operational environments.
S71912 CD/P4ADGB Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| CD | Universal matchable bearing design with a 15° contact angle. Two bearings can be mounted in either a back-to-back (DB) or face-to-face (DF) arrangement to optimize load distribution. |
| P4A | Indicates a high-precision tolerance class with enhanced running accuracy and dimensional control beyond standard P4 levels. |
| DGB | Signifies a sealed bearing pre-filled with grease, offering protection against contamination and providing maintenance-free operation. |
S71912 CD/P4ADGB Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The angular contact design with a 15° contact angle and universal matching capability enables the bearing to support significant combined radial and axial loads. When mounted in pairs, the arrangement provides high system rigidity.
- High-Speed Performance: The lightweight phenolic cage minimizes centrifugal forces, while the optimized internal geometry and grease lubrication contribute to a high limiting speed of 32,500 rpm.
- Precision Engineering: Manufactured to P4A tolerance class with tight bore and outside diameter tolerances, ensuring minimal runout and vibration for smooth, precise operation.
- Durability & Maintenance-Free Operation: Constructed from chrome steel for both rings and balls, ensuring high durability. The integral seals retain grease and protect against contaminants, enabling reliable performance across a temperature range of -30°C to 110°C.
S71912 CD/P4ADGB Bearing Typical Application Areas
This high-precision bearing is ideally suited for applications requiring high speed, accuracy, and rigidity, such as:
- Machine Tool Spindles
- High-Frequency Motors
- Precision Grinding Equipment
- Medical and Dental Handpieces
- Aerospace Control Systems
