7002 ACDGC/P4A
7000 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
7002 ACDGC/P4A
Basic Information
System of measurement
Metric
Weight
0.03 kg
Tolerance class
P4A
Seal type
Open
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
Lubricated
Matched arrangement
Single
Number of bearings in matched set
2
Universal matching bearing
Universal Matchable (SU)
Preload
Moderate / Class C
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Phenolic
Technical Drawings
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In Stock
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7002 ACDGC/P4A Bearing Product Overview & Core Advantages
The 7002 ACDGC/P4A is a precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and rigidity. Engineered to a P4A tolerance class, it offers superior dimensional and running accuracy. Its key advantage lies in its ability to accommodate combined loads (radial and axial) simultaneously, making it ideal for high-speed spindles and precision machinery. The moderate preload (Class C) ensures consistent performance, reduced vibration, and enhanced system stiffness right from installation.
7002 ACDGC/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix | Technical Meaning |
|---|---|
| AC | Angular Contact design with a 25° contact angle. |
| DGC | Indicates a Universal Matchable (SU) bearing, designed to be paired with another identical bearing in a back-to-back (DB) or face-to-face (DF) arrangement to handle complex load conditions. |
| P4A | Denotes a high-precision tolerance class with extremely tight limits on bore, outside diameter, and width tolerances for superior running accuracy. |
7002 ACDGC/P4A Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: Manufactured to P4A standards with a 25° contact angle and moderate preload, this bearing provides exceptional system stiffness and minimizes deflection under load, which is critical for maintaining precision in machining and positioning applications.
- Superior Load Capacity: The angular contact design is optimized to support significant combined radial and axial loads in one direction, a common requirement in spindle and motor applications.
- Optimized High-Speed Performance: The lightweight phenolic resin cage ensures stable operation and reduced centrifugal forces, contributing to a high limiting speed of 95,000 rpm. The open design allows for efficient lubrication management.
- Universal Matching Capability: As a Universal Matchable (SU) bearing, the 7002 ACDGC/P4A can be precisely paired with a second bearing. This allows for pre-configured sets that provide defined preload and optimal performance in duplex arrangements, simplifying installation and ensuring reliability.
7002 ACDGC/P4A Bearing Typical Application Areas
This high-precision bearing is ideally suited for demanding applications where accuracy and speed are paramount. Key industries and equipment include:
- Machine Tool Spindles: High-speed machining centers, grinding spindles.
- Precision Drives: Servo motors, high-frequency spindles.
- Robotics: Joint and arm actuators requiring high rigidity.
- Medical Equipment: Dental handpieces, laboratory automation.
- Aerospace Instrumentation: Gyroscopes, navigation systems.
