7216 CD/P4ADGD
7200 & 7300 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
7216 CD/P4ADGD
Basic Information
System of measurement
Metric
Weight
2.92 kg
Tolerance class
P4A
Seal type
Open
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
15 °
Ball & Washer Dimensions
Ball diameter
17.462 mm
Ball quantity
17
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
31500 lbf
Radial static load rating
33750 lbf
Limiting speed
28 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Universal Matchable (SU)
Number of bearings in matched set
2
Universal matching bearing
Universal Matchable (SU)
Preload
Heavy / Class D
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
Price available upon request.
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7216 CD/P4ADGD Bearing Product Overview & Core Advantages
The 7216 CD/P4ADGD is a precision angular contact ball bearing engineered for applications demanding exceptional rigidity and accuracy. This universal matchable (SU) bearing is designed to handle combined loads—significant radial and axial loads in both directions—making it ideal for high-precision, high-reliability machinery. Manufactured to P4A tolerance class and featuring a heavy preload (Class D), it delivers superior rotational accuracy and system stability in demanding operational environments.
7216 CD/P4ADGD Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7216 | Basic bearing series and size designation (80mm bore, 140mm OD, 52mm width). |
| C | Specifies a 15° contact angle, optimized for handling combined loads. |
| D | Indicates a heavy preload (Class D) for maximum system rigidity and minimal deflection under load. |
| /P4A | Denotes a high-precision tolerance class (P4A), ensuring extremely tight dimensional and running accuracy. |
| DGD | Signifies that the bearing is universal matchable (SU) and supplied as part of a duplex set (2 bearings), pre-configured for specific mounting arrangements (DB, DF, DT). |
7216 CD/P4ADGD Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The duplex pair configuration and heavy preload provide exceptional stiffness, enabling the bearing to withstand substantial combined radial and axial loads with minimal deformation. The 15° contact angle is optimally balanced for bidirectional thrust capacity.
- Precision Performance: Manufactured to P4A tolerance standards with a phenolic cage, this bearing ensures ultra-precise rotation, low vibration, and low noise, which is critical for high-speed, high-accuracy applications.
- Optimized for High-Speed Operation: The lightweight phenolic cage and precision-ground chrome steel components contribute to a high limiting speed of 28,000 rpm, making it suitable for high-speed spindles.
- Universal Matching Design: The Universal Matchable (SU) feature allows for flexible mounting in back-to-back (DB), face-to-face (DF), or tandem (DT) arrangements without the need for selective assembly, simplifying installation and inventory management.
7216 CD/P4ADGD Bearing Typical Application Areas
This precision bearing is ideally suited for high-performance machinery where accuracy, rigidity, and speed are paramount. Key applications include:
- Machine Tool Spindles (e.g., CNC machining centers, grinding spindles)
- High-Speed Precision Drives
- Industrial Pumps and Compressors
- Robotic Arm Joints and Precision Gearboxes
- Aerospace and Defense Actuation Systems
