7210 CD/P4ADGD
7200 & 7300 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
7210 CD/P4ADGD
Basic Information
System of measurement
Metric
Weight
0.92 kg
Tolerance class
P4A
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
50 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
90 mm
Outside diameter tolerance
-0.004mm to 0
Width
40 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
12.7 mm
Ball quantity
15
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
16380 lbf
Radial static load rating
15300 lbf
Limiting speed
41 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
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7210 CD/P4ADGD Bearing Product Overview & Core Advantages
The 7210 CD/P4ADGD is a precision angular contact ball bearing designed for demanding applications requiring exceptional rigidity and accuracy. As a universal matchable (SU) bearing supplied in a preloaded duplex set, it delivers superior performance under combined radial and axial loads. Manufactured to P4A tolerance class with a 15° contact angle and heavy preload (Class D), this bearing is engineered for high-speed operation, outstanding rotational accuracy, and long-term reliability in precision machinery.
7210 CD/P4ADGD Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| CD | Duplex bearing set with a universal matchable (SU) arrangement. This configuration allows for flexible mounting to support combined loads in any configuration. |
| P4A | Indicates a high-precision tolerance class with enhanced running accuracy, suitable for applications requiring minimal vibration and high-speed operation. |
| D (in Preload) | Signifies a Heavy preload (Class D). This increases bearing rigidity, reduces deflection under load, and improves system responsiveness. |
| GD | The bearing is lubricated from the factory with a high-performance grease suitable for the specified temperature range. |
7210 CD/P4ADGD Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The duplex set configuration and heavy preload work in unison to provide exceptional system stiffness, effectively handling combined radial and axial loads (Dynamic Load Rating: 16380 lbf, Static Load Rating: 15300 lbf).
- Precision & High-Speed Performance: The P4A tolerance class ensures minimal runout and vibration. Combined with the optimized 15° contact angle and a lightweight, durable phenolic cage, the bearing achieves a high limiting speed of 41,000 rpm.
- Optimized Internal Geometry: The design incorporates 15 high-grade chrome steel balls (12.7 mm diameter) for smooth operation and high load-carrying capacity.
- Ready-to-Install: The bearing set is pre-lubricated, simplifying installation and ensuring immediate, reliable performance upon startup.
7210 CD/P4ADGD Bearing Typical Application Areas
This bearing is ideally suited for high-precision, high-speed applications, including:
- Machine Tool Spindles
- High-Frequency Machining Centers
- Precision Grinding Spindles
- Industrial Pumps and Compressors
- Robotic Arm Joints and Precision Gearboxes
