S7214 CD/P4A
Sealed Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
S7214 CD/P4A
Basic Information
System of measurement
Metric
Weight
1.13 kg
Tolerance class
P4 (ABEC-7)
Seal type
Sealed
For load direction
Angular Contact
Main Dimensions
Bore diameter
70 mm
Bore diameter tolerance
-0.007mm to 0
Outside diameter
125 mm
Outside diameter tolerance
-0.009mm to 0
Width
24 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
15.875 mm
Ball quantity
16
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
15502 lbf
Radial static load rating
13162 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:
$ 866.57
/ each
In Stock
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S7214 CD/P4A Bearing Product Overview & Core Advantages
The S7214 CD/P4A is a high-precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and rigidity. Engineered to a P4 (ABEC-7) tolerance class, it is ideally suited for high-speed spindles and other precision machinery. Its key advantage lies in its ability to accommodate combined loads—simultaneously handling significant radial loads and axial loads in one direction—thanks to its specific 15° contact angle. This bearing is preloaded and lubricated from the factory, ensuring optimal performance, reduced vibration, and immediate readiness for installation in high-reliability systems.
S7214 CD/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Benefit |
|---|---|---|
| S7214 | Basic bearing series designation (70mm bore, 125mm OD, 24mm width). | Defines the core dimensions and load-carrying capacity. |
| C | Specific internal design and contact angle (15° in this case). | Optimizes the bearing for high-speed operation and axial load capacity. |
| D | Indicates a preload level. | Enhances rigidity, reduces vibration, and improves rotational accuracy. |
| P4A | Denotes the tolerance class P4 (ABEC-7) with specific running accuracy requirements. | Guarantees ultra-precise dimensions and minimal runout for high-performance applications. |
S7214 CD/P4A Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: Manufactured to a P4 tolerance class with a defined preload (D), this bearing delivers exceptional stiffness and running accuracy, making it ideal for machine tool spindles where minimal deflection is critical.
- Superior Load Capacity: The 15° contact angle design enables the bearing to efficiently support combined radial and axial loads. With a dynamic load rating of 15,502 lbf and a static load rating of 13,162 lbf, it offers reliable performance under demanding conditions.
- Optimized High-Speed Performance: The lightweight phenolic resin cage minimizes centrifugal forces, contributing to a high limiting speed of 11,000 rpm. This makes it a premier choice for high-speed applications.
- Sealed and Lubricated for Life: As a sealed unit, it is protected from contamination. The factory-applied lubrication ensures consistent performance across its specified temperature range (-30°C to 110°C), offering a maintenance-free service life.
S7214 CD/P4A Bearing Typical Application Areas
This precision bearing is engineered for high-performance machinery, including:
- Machine Tool Spindles: For CNC machining centers, grinders, and lathes requiring high speed and rigidity.
- High-Speed Motors and Spindles: Used in applications where rotational accuracy and limiting speed are paramount.
- Precision Instrumentation: Suitable for medical devices, optical scanners, and measuring equipment.
- Industrial Pumps and Compressors: Where reliable operation under combined loads is necessary.
