S7003 ACDGA/HCP4A
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
S7003 ACDGA/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
25 °
Ball & Washer Dimensions
Ball diameter
5.556 mm
Ball quantity
12
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
1462 lbf
Radial static load rating
698 lbf
Limiting speed
103 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 ACDGA/HCP4A Bearing Product Overview & Core Advantages
The S7003 ACDGA/HCP4A is a super-precision double row angular contact ball bearing engineered for the most demanding applications. Its primary advantage lies in its ability to simultaneously support combined radial and axial loads from both directions with exceptional accuracy and stability. Featuring a compact design with a 17 mm bore, this bearing is optimized for high-speed operation and delivers superior rigidity, making it an ideal choice for high-performance spindles and precision machinery where reliability is paramount.
S7003 ACDGA/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Significance |
|---|---|---|
| S7003 | Basic Bearing Series & Size | Denotes a 17mm bore, 35mm OD, 10mm width super-precision bearing. |
| AC | 25° Contact Angle | Optimized for handling significant axial loads in addition to radial loads. |
| D | Double Row Design | Provides high rigidity and moment load capacity. |
| GA | Universal Matchable (SU) & Light Preload | Bearings are universal matchable in any combination and come with a light preload for enhanced stiffness. |
| HC | Hybrid Ceramic | Features ceramic balls for reduced friction, lower operating temperature, and extended service life at high speeds. |
| P4A | Tolerance Class | Exceeds ABEC 7/ISO P4 standards, ensuring runout and dimensional tolerances for ultra-precise applications. |
S7003 ACDGA/HCP4A Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The double row angular contact design provides superior stiffness and enables the bearing to handle significant combined loads and moment loads, ensuring stable performance under demanding conditions.
- Exceptional High-Speed Performance: The combination of a lightweight phenolic cage and low-friction ceramic balls significantly reduces centrifugal forces and operating temperatures, allowing for a very high limiting speed of 103,000 rpm.
- Pre-Lubricated & Sealed: The bearing is pre-lubricated with grease and features integral seals, offering a maintenance-free, long-service-life solution that is protected from contamination.
- Precision Engineering: Manufactured to P4A tolerance class with a 25° contact angle, this bearing guarantees minimal runout and vibration, which is critical for achieving the highest levels of machining accuracy.
S7003 ACDGA/HCP4A Bearing Typical Application Areas
The S7003 ACDGA/HCP4A is ideally suited for high-performance machinery requiring extreme precision and speed, including:
- Machine Tool Spindles (High-speed machining centers, grinding spindles)
- Precision Grinding Equipment
- High-Frequency Motors
- Aerospace & Defense Instrumentation
- Medical Device Rotational Components
