S7210 CD/HCP4ADGA
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
S7210 CD/HCP4ADGA
Basic Information
System of measurement
Metric
Weight
0.79 kg
Tolerance class
P4A
Seal type
Sealed
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
34 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
Ceramic
Cage material
Phenolic
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 387.04
/ each
In Stock
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S7210 CD/HCP4ADGA Bearing Product Overview & Core Advantages
The S7210 CD/HCP4ADGA is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional rotational accuracy and rigidity. This universal matchable (SU) bearing features a double-row design with a 15° contact angle, enabling it to support significant combined loads—simultaneously handling radial loads and bidirectional axial loads. Manufactured to P4A tolerance class, it delivers superior running accuracy. The combination of a phenolic cage and ceramic balls contributes to its high-speed capability, low friction, and extended service life, making it an ideal solution for high-rigidity and high-speed precision machinery.
S7210 CD/HCP4ADGA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S7210 | Basic bearing series and size designation (Bore: 50mm, OD: 90mm, Width: 40mm). |
| CD | Contact angle of 15° and high-precision design. |
| HC | Hybrid Ceramic: Features ceramic balls for reduced weight, lower friction, and higher speed potential. |
| P4A | High precision tolerance class, exceeding ABEC 7/ISO P4 standards for exceptional running accuracy. |
| DGA | Sealed on both sides and pre-lubricated with grease. |
S7210 CD/HCP4ADGA Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The double-row angular contact structure provides superior rigidity and enables the bearing to handle substantial combined radial and axial loads from both directions, making it suitable for applications with complex loading conditions.
- Superior High-Speed Performance: The lightweight phenolic resin cage and ceramic balls (Si3N4) significantly reduce centrifugal forces and inertial mass. This design allows for a high limiting speed of 34,000 rpm, reduced heat generation, and lower operating torque.
- Extended Service Life & Reliability: The hybrid ceramic construction offers excellent wear resistance and electrical insulation properties. The sealed design with pre-applied grease protects against contamination and provides long-term, maintenance-free operation within a wide temperature range of -30°C to 110°C.
- Precision Engineering: Manufactured to P4A tolerance class with tight dimensional control on the bore diameter, outside diameter, and width, ensuring predictable performance and precise shaft positioning.
S7210 CD/HCP4ADGA Bearing Typical Application Areas
- High-Speed Machine Tool Spindles for milling, grinding, and turning centers
- Precision Industrial Pumps and Compressors
- High-Frequency Electric Motors and Spindles
- Aerospace and Defense Actuation Systems
- Medical and Laboratory Equipment requiring high-speed and clean operation
