S7210 CD/HCP4A
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
S7210 CD/HCP4A
Basic Information
System of measurement
Metric
Weight
0.39 kg
Tolerance class
P4 (ABEC-7)
Seal type
Sealed
For load direction
Angular Contact
Main Dimensions
Bore diameter
50 mm
Bore diameter tolerance
-0.006mm to 0
Outside diameter
90 mm
Outside diameter tolerance
-0.008mm to 0
Width
20 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° to 110 °C
Radial dynamic load rating
10102 lbf
Radial static load rating
7650 lbf
Limiting speed
19 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Single
Preload
Available
Materials
Ring material
Chrome Steel
Ball material
Ceramic
Cage material
Phenolic
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 454.01
/ each
In Stock
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S7210 CD/HCP4A Bearing Product Overview & Core Advantages
The S7210 CD/HCP4A is a high-precision, single-row angular contact ball bearing engineered for demanding applications. Its primary advantage lies in its ability to accommodate combined loads, specifically handling substantial radial loads and axial loads in one direction simultaneously. This bearing is distinguished by its ceramic ball material and P4 (ABEC-7) super-precision tolerance class, ensuring exceptional running accuracy, high rigidity, and superior performance. The combination of a phenolic cage and pre-applied lubrication facilitates high-speed operation, making it an ideal solution for high-reliability and high-rotation accuracy scenarios where space is limited.
S7210 CD/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Advantage |
|---|---|---|
| 7210 | Standard bearing series designation indicating dimensions: 50mm bore, 90mm OD. | Defines the core bearing dimensions. |
| C | Specifies a 15° contact angle. | Optimized for axial load capacity while maintaining good radial load performance. |
| D | Indicates a high internal design and preload. | Enhances system rigidity and rotational accuracy. |
| HC | Signifies Hybrid Ceramic construction (steel rings, ceramic balls). | Reduces friction, increases limiting speed, and provides longer service life. |
| P4 | Denotes P4 tolerance class (ABEC-7). | Guarantees ultra-precise running accuracy for high-performance applications. |
S7210 CD/HCP4A Bearing Structural Features & Performance Benefits
- Hybrid Ceramic Design: The use of ceramic balls with steel rings significantly reduces centrifugal forces, lowers operating temperature, and minimizes wear, directly contributing to a higher limiting speed (19,000 rpm) and extended service life.
- High Rigidity & Preload: The bearing is supplied with a preload, which eliminates internal clearance. This results in superior system rigidity, precise shaft positioning, and reduced vibration and noise under load.
- Optimized Load Capacity: The 15° contact angle is engineered to efficiently handle combined loads, offering excellent performance for applications with significant radial and unidirectional axial forces.
- High-Speed Capability: The lightweight phenolic cage provides high strength and stability at high rotational speeds, while the pre-applied lubrication is formulated for high-speed operation, ensuring reliable performance.
- Precision Engineering: Manufactured to a P4 super-precision tolerance, this bearing ensures minimal runout and exceptional rotational accuracy, which is critical for precision machinery.
S7210 CD/HCP4A Bearing Typical Application Areas
This high-precision angular contact bearing is ideally suited for applications requiring high speed, high rigidity, and exceptional accuracy. Key industries and equipment include:
- Machine Tool Spindles: High-speed machining centers, grinding spindles.
- Precision Robotics: Arm joints and high-accuracy rotary axes.
- High-Frequency Motors and Spindles: Where low inertia and high-speed capability are paramount.
- Medical and Dental Equipment: High-speed handpieces and scanners.
- Aerospace Instrumentation: Gyroscopes and other precision navigation systems.
