S7015 CEGA/P4A
Sealed Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
S7015 CEGA/P4A
Basic Information
System of measurement
Metric
Weight
0.67 kg
Tolerance class
P4A
Seal type
Sealed
For load direction
Angular Contact
Main Dimensions
Bore diameter
75 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
115 mm
Outside diameter tolerance
-0.004mm to 0
Width
20 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
9.525 mm
Ball quantity
26
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
5850 lbf
Radial static load rating
4860 lbf
Limiting speed
28 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:
$ 350.92
/ each
In Stock
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S7015 CEGA/P4A Bearing Product Overview & Core Advantages
The S7015 CEGA/P4A is a super-precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and rigidity. As a P4A tolerance class bearing, it offers extremely tight dimensional and running accuracy. Its 15° contact angle and extra light preload (Class A) configuration make it ideally suited for high-speed spindles, providing excellent stability and minimizing heat generation. This bearing is Universal Matchable (SU), allowing for precise axial clearance control when mounted in pairs, which is critical for achieving optimal performance in high-precision, high-rigidity applications.
Model Code Deep Explanation
| Code Segment | Technical Meaning |
|---|---|
| S7015 | Series designation for a super-precision angular contact ball bearing. |
| CE | Contact angle of 15°. |
| GA | Preload grade: Extra Light (Class A). |
| P4A | Tolerance class, denoting higher running accuracy than ABEC 7 (P4). |
S7015 CEGA/P4A Bearing Structural Features & Performance Benefits
- Super-Precision Construction: Manufactured to P4A tolerance class, this bearing ensures minimal runout and vibration, which is paramount for applications requiring ultra-high rotational accuracy.
- Optimized for High-Speed Operation: The phenolic resin cage offers excellent strength-to-weight ratio and operates effectively at high speeds with low friction. Combined with the 15° contact angle and extra light preload, it enables a high limiting speed of 28,000 rpm.
- High Load Capacity: The angular contact design allows it to support combined loads (radial and axial) simultaneously. The dynamic load rating of 5850 lbf and static load rating of 4860 lbf ensure reliable performance under demanding conditions.
- Universal Matching (SU): Bearings are manufactured to universal matching standards, allowing any two bearings to be paired without selective matching, simplifying installation and ensuring consistent preload and stiffness in duplex sets.
- Sealed & Pre-Lubricated: The sealed design protects against contamination, and the grease lubrication provides long-term, maintenance-free operation within the specified temperature range of -30°C to 110°C.
S7015 CEGA/P4A Bearing Typical Application Areas
This bearing is engineered for the most demanding high-precision machinery, including:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Grinding Spindles: Internal and external grinding applications.
- High-Frequency Motors: Spindles for PCB drilling and other high-RPM applications.
- Aerospace & Defense Systems: Gyroscopes, radar systems, and other precision instruments.
