S7210 ACD/P4A
Sealed Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
S7210 ACD/P4A
Basic Information
System of measurement
Metric
Weight
0.47 kg
Tolerance class
P4 (ABEC-7)
Seal type
Sealed
For load direction
Angular Contact
Main Dimensions
Bore diameter
50 mm
Bore diameter tolerance
-0.006mm to 0
Outside diameter
90 mm
Outside diameter tolerance
-0.008mm to 0
Width
20 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
12.7 mm
Ball quantity
15
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
9518 lbf
Radial static load rating
7312 lbf
Limiting speed
14 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:
$ 453.92
/ each
In Stock
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S7210 ACD/P4A Bearing Product Overview & Core Advantages
The S7210 ACD/P4A is a single-row angular contact ball bearing engineered for high-precision applications requiring exceptional rotational accuracy and rigidity. This P4 (ABEC-7) tolerance class bearing is preloaded and pre-lubricated, making it ideal for machine tool spindles and other high-speed machinery where precise axial positioning and minimal runout are critical. Its design is optimized to handle significant combined loads (radial and axial) simultaneously, providing reliable performance in demanding operational environments.
S7210 ACD/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| AC | Angular Contact design with a 25° contact angle. |
| D | Indicates a high internal capacity design. |
| P4A | Specifies a P4 (ABEC-7) tolerance class with specific internal clearance and geometry requirements for high precision. |
S7210 ACD/P4A Bearing Structural Features & Performance Benefits
- High Rigidity & Precision: The single-row angular contact design with a 25° contact angle and P4 precision ensures high system rigidity and exceptional running accuracy, essential for applications like machine tool spindles.
- Superior Load Capacity: Engineered to support combined radial and axial loads effectively. With a dynamic load rating of 9518 lbf and static load rating of 7312 lbf, it offers reliable performance under significant stress.
- Optimized High-Speed Performance: The phenolic resin cage reduces friction and weight, contributing to a high limiting speed of 14,000 rpm. The standard preload and optimized internal geometry further enhance stability at high rotational speeds.
- Ready-to-Install & Sealed: The bearing comes sealed and pre-lubricated, protecting against contamination and simplifying installation. This design supports operation within a temperature range of -30°C to 110°C.
S7210 ACD/P4A Bearing Typical Application Areas
- Machine Tool Spindles (High-speed milling, grinding)
- Precision Gearboxes
- High-Frequency Motors
- Medical Equipment (e.g., Dental handpieces)
- Robotic Arms and Precision Drives
