S7214 ACD/P4A
Sealed Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
S7214 ACD/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
25 °
Ball & Washer Dimensions
Ball diameter
15.875 mm
Ball quantity
16
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
14918 lbf
Radial static load rating
12375 lbf
Limiting speed
9.5 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:
$ 866.51
/ each
In Stock
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S7214 ACD/P4A Bearing Product Overview & Core Advantages
The S7214 ACD/P4A is a high-precision, single-row angular contact ball bearing engineered for applications demanding exceptional rotational accuracy and rigidity. Designed to accommodate combined loads (simultaneous radial and axial loads), its primary advantage lies in its optimized internal geometry and P4 (ABEC-7) super-precision tolerance. This bearing is preloaded, ensuring minimal axial and radial play for superior running accuracy and system stiffness, making it ideal for high-speed, high-reliability spindles and precision machinery.
S7214 ACD/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S7214 | Basic bearing designation, indicating a 70mm bore, 125mm OD, 24mm width angular contact bearing. |
| ACD | Signifies a 25° contact angle and a specific internal design optimized for high rigidity and precise operation. |
| P4A | Denotes a P4 (ABEC-7) tolerance class with enhanced dimensional and running accuracy specifications. |
S7214 ACD/P4A Bearing Structural Features & Performance Benefits
- High Rigidity and Running Accuracy: The 25° contact angle and application of preload significantly increase system stiffness, minimizing deflection under load and ensuring exceptional positional accuracy.
- Superior Load Capacity: Engineered to efficiently handle combined radial and axial loads, making it suitable for complex loading conditions.
- Optimized High-Speed Performance: The lightweight, durable phenolic resin cage reduces centrifugal forces, lowers friction, and contributes to a high limiting speed of 9,500 rpm. The pre-lubrication ensures immediate and reliable operation.
- Sealed and Protected: As a sealed bearing, it is protected from contamination and its factory-applied lubricant is retained, offering long-term, maintenance-free operation in clean environments.
S7214 ACD/P4A Bearing Typical Application Areas
This precision bearing is ideally suited for:
- Machine Tool Spindles (milling, grinding, turning centers)
- High-Frequency Motors and Spindles
- Precision Gearboxes
- Industrial Pumps and Compressors
- Medical and Laboratory Equipment
