S7216 ACD/P4ADGA
Sealed Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
S7216 ACD/P4ADGA
Basic Information
System of measurement
Metric
Weight
3.01 kg
Tolerance class
P4A
Seal type
Sealed
For load direction
Angular Contact
Main Dimensions
Bore diameter
80 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
140 mm
Outside diameter tolerance
-0.004mm to 0
Width
52 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°C to 110 °C
Radial dynamic load rating
29925 lbf
Radial static load rating
32175 lbf
Limiting speed
28 X 1000 rpm
Lubrication
Grease
Matched arrangement
Universal Matchable (SU)
Number of bearings in matched set
2
Universal matching bearing
Universal Matchable (SU)
Preload
Extra light / Class A
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Phenolic
Technical Drawings
No drawings available at the moment, will be launched soon
In Stock
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S7216 ACD/P4ADGA Bearing Product Overview & Core Advantages
The S7216 ACD/P4ADGA is a precision double row angular contact ball bearing engineered for applications demanding exceptional accuracy and reliability. Designed to simultaneously handle combined radial and axial loads from both directions, this bearing features a compact design that saves space in complex assemblies. Its P4A super-precision tolerance and universal matchable (SU) design ensure smooth, quiet operation and simplified mounting in high-performance systems, making it an ideal choice for demanding industrial environments.
S7216 ACD/P4ADGA Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| ACD | Double Row Angular Contact Design with a 25° contact angle. |
| P4A | Indicates super-precision tolerance class, exceeding normal P4 standards for enhanced running accuracy. |
| DGA | Signifies the bearing is sealed and pre-lubricated with grease. |
S7216 ACD/P4ADGA Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The double row ball complement and robust construction provide superior rigidity, enabling stable support under significant combined loads.
- Precision Performance: Manufactured to P4A tolerance class with a 25° contact angle, this bearing delivers exceptional running accuracy and minimizes vibration.
- Optimized High-Speed Operation: The lightweight phenolic cage ensures stability and reduces centrifugal forces, contributing to a high limiting speed of 28,000 rpm.
- Long Service Life & Low Maintenance: The sealed design and factory-applied grease lubrication protect against contamination and provide long-term, maintenance-free operation within a temperature range of -30°C to 110°C.
- Universal Matching (SU): Bearings are universally matchable, allowing for flexible mounting arrangements (back-to-back, face-to-face, or tandem) to suit specific application requirements for preload and stiffness.
S7216 ACD/P4ADGA 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
- Industrial Pumps and Compressors
- Aerospace Control Systems
