S7012 ACD/P4ADBA
Sealed Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
S7012 ACD/P4ADBA
Basic Information
System of measurement
Metric
Weight
0.82 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
11.112 mm
Ball quantity
19
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
14040 lbf
Radial static load rating
15075 lbf
Limiting speed
32.5 X 1000 rpm
Lubrication
Grease
Matched arrangement
Duplex Back-to-Back (DB)
Number of bearings in matched set
2
Universal matching bearing
No (Standard)
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
Price available upon request.
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S7012 ACD/P4ADBA Bearing Product Overview & Core Advantages
The S7012 ACD/P4ADBA is a precision duplex back-to-back angular contact ball bearing designed for applications demanding exceptional rigidity and running accuracy. This P4A tolerance class bearing features a sealed design and is preloaded for extra-light operation, making it ideal for high-speed spindles and other precision machinery. Its duplex back-to-back (DB) arrangement provides high resistance to moment loads and offers superior stiffness, enabling it to handle combined radial and axial loads simultaneously with outstanding performance.
S7012 ACD/P4ADBA Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Advantage |
|---|---|---|
| ACD | Angular Contact, Duplex arrangement | Indicates a pre-mounted pair of bearings in a back-to-back (DB) configuration, optimized for high moment load capacity and rigidity. |
| P4A | High Precision Tolerance Class | Denotes extremely tight dimensional and running accuracy tolerances, ensuring smooth, quiet operation and high positional accuracy. |
| DB | Duplex Back-to-Back | Specific arrangement that increases axial and moment load stiffness significantly. |
S7012 ACD/P4ADBA Bearing Structural Features & Performance Benefits
- High Rigidity & Stability: The duplex back-to-back (DB) design creates a wide, stable support system that provides exceptional stiffness against moment and complex loads, minimizing deflection under operation.
- Superior Load Capacity: Engineered with a 25° contact angle, this bearing is optimized to handle significant combined radial and axial loads simultaneously, making it suitable for demanding applications.
- High-Speed Performance: The phenolic resin cage offers low weight and excellent performance at high speeds, contributing to a limiting speed of 32,500 rpm. The grease lubrication and sealed design are tailored for sustained high-speed operation.
- Precision & Longevity: Manufactured to P4A tolerance class with chrome steel rings and balls, it guarantees high running accuracy and long service life. The sealed construction helps retain lubrication and exclude contaminants.
S7012 ACD/P4ADBA Bearing Typical Application Areas
This bearing is ideally suited for high-performance applications requiring precision and speed, such as:
- Machine Tool Spindles (High-speed machining centers, grinding spindles)
- Precision Gearboxes
- High-Frequency Motors
- Industrial Pumps and Compressors
- Medical and Laboratory Equipment
