S7015 ACE/P4ADGB
Sealed Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
S7015 ACE/P4ADGB
Basic Information
System of measurement
Metric
Weight
1.34 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
40 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
9.525 mm
Ball quantity
26
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
9068 lbf
Radial static load rating
9338 lbf
Limiting speed
28 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
In Stock
Price available upon request.
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S7015 ACE/P4ADGB Bearing Product Overview & Core Advantages
The S7015 ACE/P4ADGB is a super-precision angular contact ball bearing designed for the most demanding high-speed and high-rigidity applications. As a universally matchable (SU) bearing supplied in a light preload (Class B) duplex set, it is engineered to handle combined radial and axial loads simultaneously. Its P4A tolerance class and optimized internal geometry ensure exceptional running accuracy, making it ideal for spindles requiring the highest levels of performance and reliability.
S7015 ACE/P4ADGB Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| ACE | Indicates a 25° contact angle and specific internal design optimizations for high-speed operation. |
| P4A | Denotes an ultra-high precision tolerance class with enhanced running accuracy requirements. |
| DGB | Signifies a universally matchable (SU) duplex set with a light preload (Class B). This allows for flexible mounting arrangements (back-to-back, face-to-face, or tandem) to achieve the desired stiffness and thermal management. |
S7015 ACE/P4ADGB Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The duplex pair configuration and 25° contact angle provide superior rigidity, enabling the bearing to withstand significant combined loads and moment loads, which is critical for machine tool spindles.
- Super-Precision & High-Speed Performance: Manufactured to P4A tolerance standards with a phenolic resin cage, this bearing ensures minimal vibration and can achieve a high limiting speed of 28,000 rpm. The optimized internal geometry reduces friction and heat generation.
- Universal Matchability: The SU universal matching feature allows for simplified installation and high flexibility in creating preloaded bearing arrangements without the need for selective mounting, reducing assembly time and cost.
- Ready-to-Install: The bearing is sealed and pre-lubricated with grease, offering protection against contamination and providing reliable operation within a temperature range of -30°C to 110°C.
S7015 ACE/P4ADGB Bearing Typical Application Areas
This bearing is specifically engineered for high-performance applications, including:
- Machine Tool Spindles (High-speed milling, grinding, and turning centers)
- Precision Grinding Spindles
- High-Frequency Motors
- Industrial Pumps and Compressors
- Aerospace & Defense Systems
