S7003 CDGA/HCP4A
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
S7003 CDGA/HCP4A
Basic Information
System of measurement
Metric
Weight
0.033 kg
Tolerance class
P4A
Seal type
Sealed
For load direction
Angular Contact
Main Dimensions
Bore diameter
17 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
35 mm
Outside diameter tolerance
-0.004mm to 0
Width
10 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
5.556 mm
Ball quantity
12
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
1521 lbf
Radial static load rating
731 lbf
Limiting speed
85 X 1000 rpm
Lubrication
Grease
Matched arrangement
Single
Number of bearings in matched set
2
Universal matching bearing
Universal Matchable (SU)
Preload
Extra light / Class A
Materials
Ring material
Chrome Steel
Ball material
Ceramic
Cage material
Phenolic
Technical Drawings
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In Stock
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S7003 CDGA/HCP4A Bearing Product Overview & Core Advantages
The S7003 CDGA/HCP4A is a high-precision angular contact ball bearing designed for applications demanding exceptional accuracy and reliability. Engineered with a 15° contact angle and ceramic ball material, this bearing excels in high-speed operation and provides superior rigidity. Its P4A tolerance class ensures extremely tight dimensional control, making it ideal for handling combined radial and axial loads simultaneously. The sealed design and pre-lubrication with grease offer long-term, maintenance-free performance, establishing it as a premier choice for advanced mechanical systems.
S7003 CDGA/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Advantage |
|---|---|---|
| CDGA | Specific internal design and clearance for universal matching (SU designation). | Enables precise preload control when mounted in pairs (back-to-back or face-to-face). |
| HCP4A | Indicates P4A tolerance class and potentially a specific cage or material designation (HCP). | Guarantees ultra-high running accuracy and dimensional stability. |
S7003 CDGA/HCP4A Bearing Structural Features & Performance Benefits
- High Rigidity & Precision: The combination of a phenolic resin cage, ceramic balls, and P4A tolerance class provides exceptional dimensional stability and minimizes vibration, resulting in superior system rigidity and positional accuracy.
- Superior Load Capacity: The 15° contact angle is optimized to handle significant combined loads (radial and axial) simultaneously, making it suitable for complex loading conditions.
- Exceptional High-Speed Performance: The lightweight phenolic cage and low-friction ceramic balls significantly reduce centrifugal forces and operating temperatures, enabling a high limiting speed of 85,000 rpm.
- Maintenance-Free Operation: The integral seals and factory-applied grease lubrication protect against contamination and provide reliable, long-lasting performance within a wide temperature range of -30°C to 110°C, eliminating the need for re-lubrication.
S7003 CDGA/HCP4A Bearing Typical Application Areas
- High-Speed Machine Tool Spindles
- Precision Grinding & Milling Heads
- High-Frequency Electric Motors & Spindles
- Advanced Medical & Dental Equipment
- Aerospace Actuators & Instrumentation
