S7005 CDGD/P4A
Sealed Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
S7005 CDGD/P4A
Basic Information
System of measurement
Metric
Weight
0.079 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
12 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
2151 lbf
Radial static load rating
1170 lbf
Limiting speed
83 X 1000 rpm
Lubrication
Grease
Matched arrangement
Single
Number of bearings in matched set
4
Universal matching bearing
Universal Matchable (SU)
Preload
Heavy / Class D
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Phenolic
Technical Drawings
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In Stock
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S7005 CDGD/P4A Bearing Product Overview & Core Advantages
The S7005 CDGD/P4A is a high-precision double row angular contact ball bearing designed for applications demanding exceptional rigidity and accuracy. This sealed bearing features a heavy preload (Class D), making it ideal for supporting combined loads (radial and bidirectional axial loads) in high-speed, high-rigidity systems. Its compact design, superior dimensional stability, and universal matchability ensure reliable performance in the most demanding precision machinery.
S7005 CDGD/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| CD | Indicates a double row angular contact ball bearing with a 15° contact angle. |
| G | Specifies a heavy preload (Class D) for maximum rigidity and minimal deflection under load. |
| D | Denotes that the bearing is universally matchable (SU), allowing any two bearings to be paired without loss of preload. |
| P4A | Specifies a high-precision tolerance class with enhanced running accuracy, superior to ABEC-7 standards. |
S7005 CDGD/P4A Bearing Structural Features & Performance Benefits
- High Rigidity & Stability: The double row design and application of a heavy preload significantly increase system stiffness, reducing deflection under combined loads and ensuring precise rotational accuracy.
- Superior Load Capacity: Engineered to simultaneously support substantial radial loads and bidirectional axial loads, thanks to the optimized 15° contact angle and robust construction.
- Optimized High-Speed Performance: The lightweight phenolic resin cage minimizes centrifugal forces, while the grease lubrication and sealed design contribute to a high limiting speed of 83,000 rpm.
- Maintenance-Free Operation: The integral seals retain the factory-applied grease, protecting against contamination and providing long-term, maintenance-free service within a wide temperature range of -30°C to 110°C.
S7005 CDGD/P4A Bearing Typical Application Areas
This precision bearing is ideally suited for high-performance applications including:
- Machine Tool Spindles
- High-Frequency Machining Centers
- Precision Grinding Spindles
- High-Speed Pumps and Compressors
- Robotic Drives and Precision Gearboxes
