7002 CE/HCP4AH
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
7002 CE/HCP4AH
Basic Information
System of measurement
Metric
Weight
0.025 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
994 lbf
Radial static load rating
434 lbf
Limiting speed
127 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
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7002 CE/HCP4AH Bearing Product Overview & Core Advantages
The 7002 CE/HCP4AH is a high-precision angular contact ball bearing designed for applications demanding exceptional accuracy and performance. This single-row bearing features a 15° contact angle, enabling it to support combined radial and axial loads simultaneously. Manufactured to the stringent P4A tolerance class, it guarantees superior running accuracy and rotational precision. Its core advantages include high-speed capability facilitated by a phenolic cage and ceramic balls, and the availability of preload for enhanced system rigidity in demanding applications.
7002 CE/HCP4AH Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7002 | Basic bearing series and size designation. |
| C | Designates a 15° contact angle. |
| E | Indicates an optimized internal design for enhanced performance. |
| HC | Signifies the use of Hybrid Ceramic components (Ceramic balls with steel rings). |
| P4A | Denotes the high-precision tolerance class, exceeding ABEC 7 standards. |
7002 CE/HCP4AH Bearing Structural Features & Performance Benefits
- Hybrid Ceramic Construction: The combination of chrome steel rings and silicon nitride (Si3N4) ceramic balls significantly reduces friction, heat generation, and wear. This construction enables higher limiting speeds (127,000 rpm) and provides electrical insulation, extending bearing service life.
- Phenolic Resin Cage: The lightweight and robust phenolic cage ensures excellent dimensional stability and low centrifugal forces at high rotational speeds, contributing to smooth operation and reduced vibration.
- Precision & Rigidity: Manufactured to P4A tolerance class with tight dimensional control on bore, outside diameter, and width. The availability of preload allows for precise adjustment of internal clearance, resulting in increased system stiffness, accurate shaft positioning, and reduced noise.
- Open Design & Lubrication: The open seal type allows for customized lubrication schemes to match specific application needs, optimizing performance for high-speed operation.
7002 CE/HCP4AH Bearing Typical Application Areas
This bearing is engineered for high-performance applications where speed, precision, and reliability are critical. Key industries and equipment include:
- High-Speed Spindles for CNC machining centers and precision grinding machines
- Turbochargers and auxiliary systems in the automotive and aerospace sectors
- High-Frequency Motors and servo drives
- Dental and Medical Handpieces
- Precision Instrumentation and laboratory equipment
