S7202 CD/HCP4A
Hybrid Ceramic Super Precision Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
S7202 CD/HCP4A
Basic Information
System of measurement
Metric
Weight
0.038 kg
Tolerance class
P4 (ABEC-7)
Seal type
Sealed
For load direction
Angular Contact
Main Dimensions
Bore diameter
15 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
35 mm
Outside diameter tolerance
-0.006mm to 0
Width
11 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
6.35 mm
Ball quantity
10
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
1667 lbf
Radial static load rating
754 lbf
Limiting speed
60 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:
$ 94.81
/ each
In Stock
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S7202 CD/HCP4A Bearing Product Overview & Core Advantages
The S7202 CD/HCP4A is a precision angular contact ball bearing designed for demanding applications requiring exceptional performance. Engineered as a single, preloaded unit, it delivers high rigidity and rotational accuracy. Its key advantage lies in its ability to handle combined loads (radial and axial) simultaneously with high reliability. The use of ceramic balls and a phenolic cage contributes to superior high-speed performance, reduced friction, and extended service life, making it an ideal choice for high-precision machinery.
S7202 CD/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| S7202 | Basic series designation for a 15mm bore, 35mm OD angular contact ball bearing. |
| CD | Indicates a duplex configuration with a specific contact angle and preload level, optimized for high rigidity and precise axial positioning. |
| HCP4A | Defines the tolerance class P4 (ABEC-7) for ultra-precision, along with specific internal design features (likely "HC" for hybrid ceramic) and preload code "A". |
S7202 CD/HCP4A Bearing Structural Features & Performance Benefits
- Hybrid Ceramic Construction: The combination of chrome steel rings and ceramic balls (Si3N4) significantly reduces centrifugal forces, enabling higher limiting speeds, lower operating temperatures, and longer lubricant life. This is critical for high-speed applications.
- Phenolic Resin Cage: The lightweight and robust phenolic cage offers excellent dimensional stability at high speeds, contributing to smooth operation and reduced vibration.
- 15° Contact Angle & Preload: The optimized contact angle and factory-set preload provide high axial stiffness and precise rotational accuracy, minimizing deflection under combined loads.
- Precision P4 Tolerance: Manufactured to ABEC-7 / P4 tolerance class, this bearing ensures minimal runout and superior performance in high-precision spindles and instruments.
- Sealed & Lubricated: The sealed design retains factory-applied lubricant and protects against contamination, ensuring consistent performance and reliability.
S7202 CD/HCP4A Bearing Typical Application Areas
This high-precision, high-speed bearing is ideally suited for:
- Machine Tool Spindles: High-speed machining centers, grinding spindles, and CNC lathes.
- Precision Instrumentation: Measuring devices, optical scanners, and coordinate measuring machines (CMM).
- High-Frequency Motors & Spindles: Electric vehicle motors, dental handpieces, and small turbine spindles.
- Aerospace & Defense Systems: Gyroscopes, navigation systems, and other critical rotating assemblies.
