S7216 CD/P4A
Sealed Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
S7216 CD/P4A
Basic Information
System of measurement
Metric
Weight
1.51 kg
Tolerance class
P4 (ABEC-7)
Seal type
Sealed
For load direction
Angular Contact
Main Dimensions
Bore diameter
80 mm
Bore diameter tolerance
-0.007mm to 0
Outside diameter
140 mm
Outside diameter tolerance
-0.009mm to 0
Width
26 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
17.462 mm
Ball quantity
17
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
19170 lbf
Radial static load rating
16875 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:
$ 1088.62
/ each
In Stock
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S7216 CD/P4A Bearing Product Overview & Core Advantages
The S7216 CD/P4A is a precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and rigidity. As a single-row bearing with P4 (ABEC-7) tolerance class, it delivers superior running precision. 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 defined 15° contact angle. The bearing is preloaded and comes lubricated and sealed, making it a compact, ready-to-install unit ideal for high-speed operation and high-reliability scenarios.
S7216 CD/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Benefit |
|---|---|---|
| C | 15° Contact Angle | Optimized for handling combined radial and axial loads. |
| D | High Load Capacity Internal Design | Increased dynamic and static load ratings. |
| P4A | P4 (ABEC-7) Tolerance Class | Guarantees extremely tight dimensional and running accuracy for precision applications. |
S7216 CD/P4A Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: Manufactured to P4 tolerance class with a phenolic resin cage, this bearing ensures minimal vibration and high running accuracy, which is critical for maintaining system stability.
- Superior Load Capacity: The "D" internal design and 15° contact angle enable high radial dynamic load rating (19170 lbf) and static load rating (16875 lbf), efficiently managing combined loads.
- Optimized High-Speed Performance: The lightweight phenolic cage and optimized internal geometry contribute to a high limiting speed of 9,500 rpm, making it suitable for demanding high-speed applications.
- Sealed and Lubricated for Long Life: As a sealed bearing that is pre-lubricated, it is protected from contamination and is effectively maintenance-free within its specified temperature range of -30°C to 110°C.
S7216 CD/P4A Bearing Typical Application Areas
This bearing is ideally suited for precision machinery and high-performance systems, including:
- Machine Tool Spindles
- High-Frequency Motors
- Precision Grinding Equipment
- Medical and Dental Handpieces
- Aerospace Control Systems
