7008 FE/HCP4AH1
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
7008 FE/HCP4AH1
Basic Information
System of measurement
Metric
Weight
0.17 kg
Tolerance class
P4A
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
40 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
68 mm
Outside diameter tolerance
-0.004mm to 0
Width
15 mm
Width tolerance
-0.2mm to 0
Contact angle
18 °
Ball & Washer Dimensions
Ball diameter
7.144 mm
Ball quantity
19
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
2722 lbf
Radial static load rating
1688 lbf
Limiting speed
53 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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7008 FE/HCP4AH1 Bearing Product Overview & Core Advantages
The 7008 FE/HCP4AH1 is a high-precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and rigidity. This single bearing is supplied with a preload, ensuring minimal axial and radial play for superior system stability. Its construction, featuring a phenolic cage and ceramic balls, is optimized for high-speed operation up to 53,000 rpm. Engineered to handle combined loads with an 18° contact angle, it is an ideal solution for high-performance machinery requiring reliable, long-lasting performance.
7008 FE/HCP4AH1 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7008 | Basic bearing series, indicating a 40mm bore, 68mm OD, and 15mm width. |
| FE | Indicates a specific internal design and preload level for high rigidity. |
| HC | Hybrid Ceramic: Denotes the use of ceramic balls for reduced friction and higher speed capability. |
| P4A | The tolerance class, signifying extremely high precision with tight dimensional and running accuracy tolerances. |
7008 FE/HCP4AH1 Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: The predefined preload and P4A tolerance class ensure exceptional system stiffness and rotational accuracy, critical for minimizing deflection under load.
- Superior High-Speed Performance: The combination of a lightweight phenolic cage and low-density ceramic balls significantly reduces centrifugal forces, enabling stable operation at the high limiting speed of 53,000 rpm.
- Enhanced Durability and Temperature Resistance: Ceramic balls offer superior wear resistance and lower thermal expansion compared to steel, contributing to a longer service life and consistent performance across the specified temperature range (-30°C to 110°C).
- Optimized Load Capacity: With an 18° contact angle, this bearing is engineered to efficiently support combined radial and axial loads, as reflected in its dynamic (2722 lbf) and static (1688 lbf) load ratings.
7008 FE/HCP4AH1 Bearing Typical Application Areas
This precision bearing is ideally suited for demanding applications such as:
- High-Speed Machine Tool Spindles
- Precision Grinding Spindles
- High-Frequency Motors and Spindles
- Advanced Medical and Laboratory Equipment
- Aerospace Actuation Systems
