7005 CE/HCP4ALDBA
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
7005 CE/HCP4ALDBA
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
15 °
Ball & Washer Dimensions
Ball diameter
6.35 mm
Ball quantity
14
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
3038 lbf
Radial static load rating
1868 lbf
Limiting speed
85 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Duplex Back-to-Back (DB)
Number of bearings in matched set
2
Universal matching bearing
No (Standard)
Preload
Extra light / Class A
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 CE/HCP4ALDBA Bearing Product Overview & Core Advantages
The 7005 CE/HCP4ALDBA is a precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy and performance. This duplex back-to-back (DB) matched set delivers superior high rigidity and stability under combined loads. Featuring a P4A super-precision tolerance and ceramic balls, it is engineered for high-speed operation and extended service life in critical machinery.
7005 CE/HCP4ALDBA Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| CE | Hybrid bearing featuring ceramic balls for reduced friction, higher speed capability, and longer life. |
| HC | High-Capacity design, optimized internal geometry for increased load rating. |
| P4A | Super precision tolerance class, exceeding ABEC 7/ISO P4 standards for superior running accuracy. |
| A | Extra light preload classification, minimizing friction and heat generation for optimal high-speed performance. |
| L | Light preload on the matched set. |
| DB | Duplex Back-to-Back arrangement, providing high moment stiffness and excellent stability. |
7005 CE/HCP4ALDBA Bearing Structural Features & Performance Benefits
- High Rigidity & Stability: The duplex back-to-back (DB) arrangement of two bearings creates a rigid bearing system capable of withstanding significant moment loads and providing exceptional operational stability.
- Superior High-Speed Performance: The combination of ceramic balls (lower density, reduced centrifugal forces), a phenolic resin cage (lightweight and robust), and an extra light preload (A) enables a very high limiting speed of 85,000 rpm.
- Enhanced Load Capacity: The 15° contact angle and High-Capacity (HC) internal design provide excellent performance under combined radial and axial loads.
- Precision & Longevity: Manufactured to a P4A super-precision tolerance with chrome steel rings, this bearing ensures minimal vibration and noise, contributing to high positional accuracy and extended service life.
7005 CE/HCP4ALDBA Bearing Typical Application Areas
This high-performance bearing is ideally suited for applications where high speed, precision, and rigidity are paramount. Key industries and equipment include:
- Machine Tool Spindles (High-speed milling, grinding)
- Precision Robotics and Automation Arms
- High-Frequency Motors and Spindles
- Aerospace & Defense Instrumentation
- Medical Equipment (e.g., Dental handpieces, Centrifuges)
