S7005 CD/HCP4ADBA
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
S7005 CD/HCP4ADBA
Basic Information
System of measurement
Metric
Weight
0.14 kg
Tolerance class
P4A
Seal type
Sealed
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
3510 lbf
Radial static load rating
2340 lbf
Limiting speed
83 X 1000 rpm
Lubrication
Grease
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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S7005 CD/HCP4ADBA Bearing Product Overview & Core Advantages
The S7005 CD/HCP4ADBA is a precision duplex angular contact ball bearing designed for the most demanding applications. This matched set features a Back-to-Back (DB) arrangement, providing exceptional rigidity and the ability to withstand combined radial and axial loads from both directions. Manufactured to a P4A super-precision tolerance and utilizing ceramic balls, it delivers superior high-speed performance, extended service life, and reliable operation in high-precision machinery.
S7005 CD/HCP4ADBA Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| S7005 | Basic bearing series and size (25mm bore, 47mm OD). |
| C | 15° contact angle. |
| D | Duplex (two bearings supplied as a matched set). |
| HC | Hybrid Ceramic (steel rings with ceramic balls). |
| P4A | Super-precision tolerance class (exceeding ABEC 7). |
| A | Extra light preload for optimal rigidity and minimal friction. |
| DB | Back-to-Back mounting arrangement. |
| Sealed / Grease | Integrated seals and pre-lubrication for maintenance-free operation. |
S7005 CD/HCP4ADBA Bearing Structural Features & Performance Benefits
- Exceptional Rigidity & Load Capacity: The duplex Back-to-Back (DB) arrangement creates a rigid bearing system that effectively resists moment loads and can handle significant combined radial and thrust loads.
- Superior High-Speed Performance: The combination of ceramic balls (lower density, reduced centrifugal force) and a lightweight phenolic cage allows for a very high limiting speed of 83,000 rpm, minimizing heat generation and power loss.
- Enhanced Durability & Longevity: Hybrid ceramic construction provides excellent resistance to wear and electrical arcing. The P4A precision grade ensures smooth, quiet, and vibration-free operation, critical for maintaining machining and positioning accuracy.
- Ready-to-Install & Maintenance-Free: Supplied as a pre-matched and pre-lubricated set, this bearing is sealed against contamination, offering long-term, reliable performance without the need for re-lubrication.
S7005 CD/HCP4ADBA Bearing Typical Application Areas
This bearing is engineered for high-performance applications where precision, speed, and rigidity are paramount. Key industries and equipment include:
- High-Frequency CNC Spindles for milling, grinding, and drilling.
- Precision Machine Tool main shafts and ball screws.
- High-speed Robotic Arm Drives and servo motors.
- Medical and Dental Equipment spindles.
- Aerospace instrumentation and auxiliary systems.
