7005 FE/HCP4ADT
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
7005 FE/HCP4ADT
Basic Information
System of measurement
Metric
Weight
0.13 kg
Tolerance class
P4A
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
25 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
47 mm
Outside diameter tolerance
-0.004mm to 0
Width
24 mm
Width tolerance
-0.2mm to 0
Contact angle
18 °
Ball & Washer Dimensions
Ball diameter
6.35 mm
Ball quantity
14
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
2992 lbf
Radial static load rating
1834 lbf
Limiting speed
85 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Duplex Tandem (DT)
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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7005 FE/HCP4ADT Bearing Product Overview & Core Advantages
The 7005 FE/HCP4ADT is a precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy and performance. This duplex tandem (DT) arrangement consists of two preloaded bearings, delivering superior high rigidity and axial load capacity in one direction. Its construction with a phenolic cage and ceramic balls enables outstanding high-speed performance, making it ideal for machine tool spindles and other high-precision machinery where uncompromising reliability is critical.
7005 FE/HCP4ADT Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Advantage |
|---|---|---|
| FE | Preload Class (Specific manufacturer designation for preload level) | Ensures optimal bearing stiffness and minimizes axial/radial play. |
| HC | Hybrid Ceramic (Ceramic balls with steel rings) | Reduced weight, lower friction, and capability for higher speeds and temperatures. |
| P4A | Tolerance Class (Super-precision) | Guarantees extremely tight dimensional and running accuracy for high-precision applications. |
| DT | Duplex Tandem Matched Arrangement | Combines two bearings to significantly increase axial load capacity in one direction. |
7005 FE/HCP4ADT Bearing Structural Features & Performance Benefits
- High Rigidity & Axial Load Capacity: The duplex tandem (DT) arrangement with a specified preload (FE) creates a highly rigid system capable of supporting substantial axial loads from a single direction, minimizing shaft deflection under operation.
- Superior High-Speed Performance: The combination of a lightweight phenolic cage and low-density ceramic (silicon nitride) balls reduces centrifugal forces, allowing for a very high limiting speed of 85,000 rpm. This hybrid ceramic design also reduces heat generation.
- Exceptional Precision: Manufactured to a P4A super-precision tolerance class, this bearing ensures minimal runout and vibration, which is critical for applications requiring high rotational accuracy.
- Optimized for Performance: The 25° contact angle is optimized for supporting high axial loads. The bearing comes lubricated for immediate use and reliable operation within its specified temperature range.
7005 FE/HCP4ADT Bearing Typical Application Areas
This bearing is engineered for high-performance applications, including:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Spindles: PCB drilling, semiconductor manufacturing equipment.
- High-Speed Motors: Motors and turbines operating at extreme rotational speeds.
- Aerospace & Defense Systems: Gyroscopes, radar systems, and other critical rotating assemblies.
