S7002 ACDGA/P4A
Sealed Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
S7002 ACDGA/P4A
Basic Information
System of measurement
Metric
Weight
0.03 kg
Tolerance class
P4A
Seal type
Sealed
For load direction
Angular Contact
Main Dimensions
Bore diameter
15 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
32 mm
Outside diameter tolerance
-0.004mm to 0
Width
9 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
4.762 mm
Ball quantity
12
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
1112 lbf
Radial static load rating
522 lbf
Limiting speed
95 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
Chrome Steel
Cage material
Phenolic
Technical Drawings
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In Stock
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S7002 ACDGA/P4A Bearing Product Overview & Core Advantages
The S7002 ACDGA/P4A is a high-precision, single-row angular contact ball bearing designed for demanding applications requiring exceptional rotational accuracy and rigidity. Engineered to accommodate combined loads, it efficiently supports significant radial loads alongside thrust loads in one direction. Its extra light preload (Class A) minimizes deflection under operational stresses, making it ideal for high-speed spindles and precision machinery where high rigidity and minimal runout are critical. Manufactured to the stringent P4A tolerance class, this bearing ensures superior dimensional and running accuracy for reliable, long-term performance.
S7002 ACDGA/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Advantage |
|---|---|---|
| ACD | Angular Contact Design with a 25° contact angle | Optimized for handling combined radial and one-direction axial loads efficiently. |
| GA | Extra Light Preload (Class A) | Enhances bearing rigidity and minimizes system deflection, improving positional accuracy. |
| P4A | High Precision Tolerance Class | Guarantees tight dimensional and running accuracy for superior performance in precision applications. |
S7002 ACDGA/P4A Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: The combination of a 25° contact angle and extra light preload (Class A) provides exceptional system stiffness, reducing deformation under load and ensuring high running accuracy. The P4A tolerance class further guarantees precise bearing dimensions and smooth operation.
- Superior Load Capacity: The optimized internal geometry and high-grade chrome steel construction enable the bearing to handle high dynamic and static load ratings (1112 lbf radial dynamic, 522 lbf radial static).
- High-Speed Performance: The lightweight phenolic cage minimizes centrifugal forces, contributing to a high limiting speed of 95,000 rpm. This makes it suitable for high-speed applications such as machine tool spindles.
- Universal Matching Capability (SU): Designed as a universal matchable bearing, two S7002 ACDGA/P4A bearings can be readily mounted in a back-to-back or face-to-face arrangement to accommodate complex load scenarios, enhancing application versatility.
S7002 ACDGA/P4A Bearing Typical Application Areas
This precision bearing is ideally suited for applications requiring high speed, rigidity, and accuracy, including:
- Machine Tool Spindles (High-speed machining centers, grinding spindles)
- Precision Instrumentation
- High-Frequency Motors
- Robotic Arm Joints
- Medical and Dental Equipment
