S7012 ACDGC/P4A
Sealed Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
S7012 ACDGC/P4A
Basic Information
System of measurement
Metric
Weight
0.41 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
18 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
8775 lbf
Radial static load rating
7538 lbf
Limiting speed
32.5 X 1000 rpm
Lubrication
Grease
Matched arrangement
Single
Number of bearings in matched set
3
Universal matching bearing
Universal Matchable (SU)
Preload
Moderate / Class C
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 ACDGC/P4A Bearing Product Overview & Core Advantages
The S7012 ACDGC/P4A is a precision angular contact ball bearing engineered for high-performance applications requiring exceptional rotational accuracy and rigidity. This single-row bearing features a 25° contact angle and is supplied as a Universal Matchable (SU) set, allowing for precise preload configuration when mounted in tandem. Its P4A tolerance class ensures ultra-precise dimensions and running accuracy, making it ideal for high-speed spindles and other demanding machinery where high rigidity and minimal runout are critical.
S7012 ACDGC/P4A Bearing Model Code Explained, Specifications & Naming Convention
The S7012 ACDGC/P4A model designation provides detailed technical specifications:
- S7012: Base series, indicating a high-precision angular contact ball bearing with a 60mm bore.
- AC: Angular Contact design.
- D: High contact angle (25°).
- GC: Specific internal clearance and preload designation (Moderate / Class C).
- P4A: Tolerance class exceeding ABEC 7/ISO P4, denoting superior dimensional and running accuracy.
S7012 ACDGC/P4A Bearing Structural Features & Performance Benefits
- High Rigidity and Load Capacity: The 25° contact angle and robust construction enable the bearing to support significant combined loads (radial and axial), providing stable and rigid support for spindles.
- Superior High-Speed Performance: The lightweight phenolic cage minimizes centrifugal forces, while the optimized internal geometry contributes to a high limiting speed of 32,500 rpm. The standard grease lubrication is formulated for stable operation within this range.
- Precision Engineering: Manufactured to P4A tolerance class with tight bore, outside diameter, and width tolerances, this bearing guarantees exceptional running accuracy and consistent performance.
- Matched Set Versatility: Supplied as a Universal Matchable (SU) bearing, it can be mounted in sets (up to 3 in a set) to achieve specific preload levels and system stiffness without selective sorting.
S7012 ACDGC/P4A Bearing Typical Application Areas
This bearing is specifically designed for high-precision, high-speed applications, including:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Spindles: PCB drilling, semiconductor manufacturing equipment.
- High-Frequency Motors: Spindles for routers and other high-RPM machinery.
- Medical Equipment: High-speed centrifuges and dental handpieces.
