S7216 ACD/P4A
Sealed Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
S7216 ACD/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
25 °
Ball & Washer Dimensions
Ball diameter
17.462 mm
Ball quantity
17
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
18428 lbf
Radial static load rating
16200 lbf
Limiting speed
8.5 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:
$ 1088.63
/ each
In Stock
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S7216 ACD/P4A Bearing Product Overview & Core Advantages
The S7216 ACD/P4A is a precision single-row angular contact ball bearing designed for high-performance applications requiring exceptional rotational accuracy and rigidity. Engineered to a P4 (ABEC-7) tolerance class, it is optimized to handle significant combined loads, including high radial loads and thrust loads in one direction. Its compact design, featuring a 25° contact angle, ensures high operational stiffness and is ideal for high-speed, high-reliability machinery where precision is paramount.
S7216 ACD/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Advantage |
|---|---|---|
| ACD | 25° Contact Angle, High Rigidity Design | Optimized for high thrust capacity and system stiffness. |
| P4A | P4 (ABEC-7) Tolerance Class | Guarantees superior running accuracy for precision applications. |
S7216 ACD/P4A Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The 25° contact angle and robust single-row design provide high resistance to deflection under combined radial and axial loads, ensuring stable operation.
- High-Speed Performance: The phenolic resin cage offers low friction and excellent acceleration characteristics, contributing to a high limiting speed of 8,500 rpm.
- Precision Engineering: Manufactured to P4 tolerance with tight dimensional control on the bore diameter (80mm), outside diameter (140mm), and width, ensuring precise fit and minimal runout.
- Durability & Reliability: Constructed from chrome steel for both rings and balls, this bearing offers high fatigue life and is pre-lubricated for immediate use within a wide temperature range of -30°C to 110°C.
S7216 ACD/P4A Bearing Typical Application Areas
This bearing is ideally suited for high-precision and high-speed machinery, including:
- Machine Tool Spindles
- High-Frequency Motors
- Precision Grinding Spindles
- Medical Equipment
- Aerospace Actuators
