7002 CD/HCP4AH
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
7002 CD/HCP4AH
Basic Information
System of measurement
Metric
Weight
0.027 kg
Tolerance class
P4A
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
15 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
32 mm
Outside diameter tolerance
-0.004mm to 0
Width
9 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
4.762 mm
Ball quantity
12
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
1170 lbf
Radial static load rating
551 lbf
Limiting speed
100 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Single
Number of bearings in matched set
2
Universal matching bearing
No (Standard)
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
In Stock
Price available upon request.
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7002 CD/HCP4AH Bearing Product Overview & Core Advantages
The 7002 CD/HCP4AH is a high-precision angular contact ball bearing engineered for applications demanding exceptional rotational accuracy and rigidity. This single bearing features a 15° contact angle and is supplied with a preload, enabling it to handle combined radial and axial loads simultaneously with high stability. Manufactured to a P4A super-precision tolerance and utilizing ceramic balls and a phenolic cage, it is optimized for high-speed operation up to 100,000 rpm, making it an ideal solution for advanced machinery requiring superior performance and reliability.
7002 CD/HCP4AH Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7002 | Standard bearing series designation, indicating bore diameter (15 mm) and cross-section. |
| C | Specifies a 15° contact angle. |
| D | Indicates the bearing is supplied with a preload for enhanced rigidity. |
| HC | Hybrid Ceramic: Denotes the use of ceramic balls. |
| P4A | Identifies the tolerance class, signifying super-precision levels for running accuracy. |
7002 CD/HCP4AH Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: The preload applied to this single bearing arrangement minimizes axial and radial play, resulting in superior system stiffness and precise shaft positioning, critical for high-precision applications.
- Enhanced High-Speed Performance: The combination of ceramic balls (lower density, reduced centrifugal force) and a lightweight phenolic cage significantly lowers friction and inertial forces, enabling stable operation at the high limiting speed of 100,000 rpm.
- Superior Load Capacity: The 15° contact angle is optimized to efficiently support substantial combined loads, including high axial loads in one direction alongside radial loads.
- Optimized for Demanding Environments: The open seal type allows for custom lubrication schemes, while the chrome steel rings and ceramic balls provide excellent durability and a wide operating temperature range.
7002 CD/HCP4AH Bearing Typical Application Areas
This bearing is specifically designed for high-performance systems, including:
- High-Frequency CNC Spindles
- Precision Grinding Machine Spindles
- High-Speed Robotics and Automation Drives
- Aerospace Actuators and Instrumentation
- Advanced Medical and Dental Equipment
