S71907 CEGA/P4A
Sealed Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
S71907 CEGA/P4A
Basic Information
System of measurement
Metric
Weight
0.074 kg
Tolerance class
P4A
Seal type
Sealed
For load direction
Angular Contact
Main Dimensions
Bore diameter
35 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
55 mm
Outside diameter tolerance
-0.004mm to 0
Width
10 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
5.556 mm
Ball quantity
19
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
1755 lbf
Radial static load rating
1046 lbf
Limiting speed
56 X 1000 rpm
Lubrication
Grease
Matched arrangement
Single
Number of bearings in matched set
2
Universal matching bearing
Universal Matchable (SU)
Preload
Extra light / Class A
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:
$ 90.2
/ each
In Stock
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S71907 CEGA/P4A Bearing Product Overview & Core Advantages
The S71907 CEGA/P4A is a super-precision angular contact ball bearing designed for applications demanding the highest levels of accuracy and performance. As a single bearing from a universally matchable (SU) pair, it is engineered to accommodate combined radial and axial loads simultaneously. Its extra light preload (Class A) and P4A tolerance class ensure exceptional running accuracy, low noise, and minimal heat generation, making it ideal for high-speed spindle applications and other precision machinery where high rigidity and reliability are paramount.
S71907 CEGA/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Advantage |
|---|---|---|
| CE | Enhanced internal design with a 15° contact angle. | Optimized for high-speed operation and excellent axial load capacity. |
| GA | Light preload, Class A. | Reduces deflection and vibration, ensuring smooth, precise rotation. |
| P4A | Super precision tolerance class. | Guarantees extremely tight dimensional and running accuracy for superior performance. |
S71907 CEGA/P4A Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: Manufactured to P4A tolerance class with an extra light preload, this bearing provides exceptional rotational accuracy and stiffness, minimizing runout and ensuring stable operation under load.
- Optimized Load Capacity: The 15° contact angle design is ideal for handling significant combined loads (radial and axial), making it a robust choice for demanding applications.
- Superior High-Speed Performance: The lightweight phenolic resin cage reduces centrifugal forces, while the optimized internal geometry contributes to a high limiting speed of 56,000 rpm, which is critical for machine tool spindles.
- Sealed and Pre-Lubricated: As a sealed bearing pre-lubricated with grease, it is protected from contamination and is ready for immediate use, offering long-term, maintenance-free operation within its specified temperature range.
S71907 CEGA/P4A Bearing Typical Application Areas
This super-precision angular contact ball bearing is extensively used in:
- High-Speed Machine Tool Spindles (CNC machining centers, grinding spindles)
- Precision Robotics and Automation Equipment
- High-Frequency Motors and Spindle Drives
- Medical and Dental Equipment
- Aerospace Instrumentation and Guidance Systems
