S7212 ACD/P4A
Sealed Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
S7212 ACD/P4A
Basic Information
System of measurement
Metric
Weight
0.82 kg
Tolerance class
P4 (ABEC-7)
Seal type
Sealed
For load direction
Angular Contact
Main Dimensions
Bore diameter
60 mm
Bore diameter tolerance
-0.007mm to 0
Outside diameter
110 mm
Outside diameter tolerance
-0.008mm to 0
Width
22 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
14.288 mm
Ball quantity
16
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
12442 lbf
Radial static load rating
10125 lbf
Limiting speed
11 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Single
Preload
Available
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:
$ 631.95
/ each
In Stock
- Fast delivery
- Free shipping on orders over $200
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
S7212 ACD/P4A Bearing Product Overview & Core Advantages
The S7212 ACD/P4A is a high-precision, single-row angular contact ball bearing engineered for applications demanding exceptional accuracy and rigidity. Designed to accommodate combined loads (simultaneous radial and axial loads), it features a 25° contact angle optimized for high axial load capacity. Its P4 (ABEC-7) tolerance class ensures superior running accuracy, making it ideal for high-speed spindles and precision machinery. The bearing is preloaded and comes pre-lubricated for immediate, reliable operation.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| S7212 | Basic bearing designation (60mm bore, 110mm OD, 22mm width) |
| ACD | Angular Contact Design with a 25° contact angle |
| P4A | High precision tolerance class equivalent to ABEC-7, with specific internal running accuracy requirements |
S7212 ACD/P4A Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The single-row design with a 25° contact angle provides excellent resistance to axial loads while maintaining strong radial load capacity (12,442 lbf dynamic, 10,125 lbf static), ideal for combined loads.
- Optimized High-Speed Performance: The lightweight, durable phenolic resin cage minimizes centrifugal forces, contributing to a high limiting speed of 11,000 rpm. Precision grinding of raceways further enhances high-speed stability.
- Precision Engineering: Manufactured to P4 tolerance with tight dimensional control (bore: -0.007mm to 0, OD: -0.008mm to 0), ensuring minimal runout and vibration for smooth, accurate operation.
- Ready-to-Install & Sealed: The bearing is sealed to protect against contamination and is pre-lubricated, facilitating easy installation and providing immediate, maintenance-free service within its specified temperature range (-30° to 110°C).
S7212 ACD/P4A Bearing Typical Application Areas
The S7212 ACD/P4A is suited for high-performance applications requiring precision and speed, including:
- Machine Tool Spindles (e.g., CNC milling, grinding spindles)
- High-Speed Motors and Precision Gearboxes
- Industrial Pumps and Compressors
- Robotic Arms and Precision Positioning Systems
