71828 ACDGB/P4
71800 Series Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
71828 ACDGB/P4 Bearing Product Overview & Core Advantages
The 71828 ACDGB/P4 is a single-row angular contact ball bearing designed for high-precision applications requiring exceptional rotational accuracy and rigidity. Manufactured to P4 tolerance class, this bearing delivers superior dimensional stability and running accuracy. Its 25° contact angle provides optimal performance for combined loads, effectively handling both radial and significant axial loads in one direction. The universal matching (SU) design allows for flexible mounting arrangements when used in pairs, enabling precise preload control for demanding applications.
71828 ACDGB/P4 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71828 | Basic bearing designation with 140mm bore diameter |
| AC | Angular Contact design with 25° contact angle |
| DGB | Universal matching designation for paired mounting |
| P4 | High precision tolerance class for superior running accuracy |
71828 ACDGB/P4 Bearing Structural Features & Performance Benefits
High-Precision Construction: The bearing features chrome steel rings and balls with P4 tolerance class, ensuring minimal dimensional variation and exceptional running precision. The phenolic cage provides excellent dimensional stability and reduced friction at high speeds.
Optimized Load Capacity: With a 25° contact angle, this bearing efficiently handles combined radial and axial loads. The radial dynamic load rating of 9518 lbf and static load rating of 13162 lbf ensure reliable performance under demanding conditions.
High-Speed Performance: The phenolic cage and optimized internal geometry enable a limiting speed of 11,000 rpm, making it suitable for high-speed applications. The 35 precision balls with 10.319 mm diameter provide smooth operation and reduced vibration.
Precision Matching Capability: As a universal matchable (SU) bearing, it can be paired in various configurations (back-to-back, face-to-face, or tandem) to achieve specific stiffness and load-carrying requirements with light preload (Class B).
71828 ACDGB/P4 Bearing Typical Application Areas
- Machine tool spindles and high-precision machining centers
- High-speed spindles for grinding and milling applications
- Precision instrumentation and measuring equipment
- Robotic joints and automation systems requiring high accuracy
- Aerospace components and navigation systems
- Medical equipment spindles and precision rotating assemblies
