S7012 ACE/P4ADGA
Sealed Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
S7012 ACE/P4ADGA
Basic Information
System of measurement
Metric
Weight
0.86 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
95 mm
Outside diameter tolerance
-0.004mm to 0
Width
36 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
7.938 mm
Ball quantity
25
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
5850 lbf
Radial static load rating
5512 lbf
Limiting speed
31 X 1000 rpm
Lubrication
Grease
Matched arrangement
Universal Matchable (SU)
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
In Stock
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S7012 ACE/P4ADGA Bearing Product Overview & Core Advantages
The S7012 ACE/P4ADGA is a super-precision double row angular contact ball bearing designed for applications demanding exceptional accuracy and rigidity. Manufactured to P4A tolerance class, it offers superior running accuracy and dimensional stability. Its double row design enables it to accommodate combined loads—significant radial loads and bidirectional axial loads—simultaneously, making it an ideal, compact solution for high-speed spindles and other precision machinery where high reliability is critical.
S7012 ACE/P4ADGA Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| ACE | Indicates a 25° contact angle and Extra Light (A) preload. This configuration optimizes the bearing for high-speed operation while maintaining high rigidity. |
| P4A | Denotes a super-precision tolerance class superior to ABEC 7, ensuring minimal runout and vibration for ultra-precise applications. |
| DGA | Signifies that the bearing is sealed and pre-lubricated with grease. This provides effective contamination protection and enables maintenance-free operation. |
S7012 ACE/P4ADGA Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The double row angular contact design and 25° contact angle provide high radial and axial rigidity, enabling stable performance under combined loads.
- Super-Precision Performance: Manufactured to P4A tolerance standards with a phenolic cage, the bearing ensures smooth operation, reduced vibration, and exceptional running accuracy, which is vital for high-speed machining.
- Optimized for High Speeds: The combination of the lightweight phenolic cage, optimized internal geometry, and extra light preload allows for a high limiting speed of 31,000 rpm.
- Maintenance-Free Operation: The integrated seals and factory-applied grease lubrication protect against contaminants and provide long-term, reliable performance without the need for re-lubrication within the specified temperature range of -30°C to 110°C.
- Universal Matchable (SU): These bearings are designed to be universally matchable, allowing for flexible mounting arrangements (back-to-back, face-to-face, or tandem) to suit specific application requirements for preload and stiffness.
S7012 ACE/P4ADGA Bearing Typical Application Areas
The S7012 ACE/P4ADGA is engineered for high-performance applications, including:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Robotics: Arm joints and high-accuracy rotary axes.
- High-Frequency Motors & Spindles: Where minimal runout and high rotational accuracy are paramount.
- Medical Equipment: High-speed dental handpieces and imaging device rotors.
- Aerospace & Defense Systems: Gyroscopes, radar systems, and other precision instrumentation.
