71802 ACD/P4DGB
71800 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
71802 ACD/P4DGB
Basic Information
System of measurement
Metric
Weight
0.014 kg
Tolerance class
P4
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
15 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
24 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
2.381 mm
Ball quantity
17
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
790 lbf
Radial static load rating
630 lbf
Limiting speed
121 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Universal Matchable (SU)
Number of bearings in matched set
2
Universal matching bearing
Universal Matchable (SU)
Preload
Light / Class B
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Phenolic
Technical Drawings
No drawings available at the moment, will be launched soon
In Stock
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71802 ACD/P4DGB Bearing Product Overview & Core Advantages
The 71802 ACD/P4DGB is a precision angular contact ball bearing designed for applications demanding exceptional accuracy and reliability. As a universal matchable (SU) bearing supplied in a pre-loaded pair, it delivers superior performance in handling combined loads—simultaneously supporting significant radial and axial loads. Its P4 tolerance class ensures ultra-high running accuracy, while the phenolic cage and optimized 25° contact angle contribute to outstanding high-speed capabilities and operational stability, making it ideal for high-precision spindles and machinery.
71802 ACD/P4DGB Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71802 | Basic bearing designation indicating the bearing size series (15 mm bore, 24 mm OD, 10 mm width) |
| AC | Angular Contact design with a 25° contact angle |
| D | Universal Matchable (SU) designation, indicating the bearing is supplied as one of a matched pair |
| P4 | High precision tolerance class for superior running accuracy |
| DGB | Duplex arrangement with light preload (Class B) |
71802 ACD/P4DGB Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The double row angular contact design and universal matching provide exceptional stiffness, enabling the bearing to handle substantial combined radial and axial loads simultaneously with minimal deflection.
- Superior High-Speed Performance: The lightweight phenolic resin cage reduces centrifugal forces, while the optimized 25° contact angle and precision grinding contribute to a high limiting speed of 121,000 rpm.
- Precision Engineering: Manufactured to P4 tolerance class with tight dimensional controls on bore, OD, and width, ensuring ultra-precise shaft positioning and smooth operation.
- Optimized Internal Geometry: Features 17 precision balls of 2.381 mm diameter for balanced load distribution and smooth rotation under high speeds.
71802 ACD/P4DGB Bearing Typical Application Areas
- High-Speed Machine Tool Spindles
- Precision Grinding Machines
- High-Frequency Motors and Spindles
- Medical and Dental Equipment
- Aerospace Control Systems
- Robotic Arm Joints and Precision Gearboxes
