71952 ACDGA/P4A
71900 Series Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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71952 ACDGA/P4A Bearing Product Overview & Core Advantages
The 71952 ACDGA/P4A is a single-row angular contact ball bearing designed for high-precision applications requiring exceptional rotational accuracy and rigidity. Manufactured to P4A tolerance class, this bearing delivers superior dimensional stability and running accuracy. Its 25° contact angle provides excellent axial load capacity in one direction while maintaining good radial load handling. The phenolic cage ensures smooth operation at high speeds up to 4,500 rpm, while the universal matching (SU) capability allows for precise preload configuration in multi-bearing arrangements.
71952 ACDGA/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Performance Benefit |
|---|---|---|
| 71952 | Basic bearing series with 260mm bore diameter | Standardized dimension for interchangeability |
| AC | Angular Contact design | Optimized for combined radial and axial loads |
| DGA | Extra light preload (Class A) | Minimized friction for high-speed operation |
| P4A | High precision tolerance class | Exceptional running accuracy and dimensional stability |
71952 ACDGA/P4A Bearing Structural Features & Performance Benefits
Precision Engineering: The P4A tolerance class ensures minimal dimensional variation, providing consistent performance in demanding applications. The bearing dimensions (260mm bore × 360mm OD × 46mm width) are optimized for space-constrained installations.
High-Speed Capability: The phenolic resin cage and optimized ball quantity (29 balls of 30.162mm diameter) enable stable operation at limiting speeds of 4,500 rpm. The open design facilitates efficient lubrication management.
Superior Load Capacity: With a dynamic load rating of 59,625 lbf and static load rating of 90,000 lbf, this bearing handles significant radial and axial loads simultaneously. The 25° contact angle provides optimal load distribution.
Material Excellence: Chrome steel rings and balls ensure durability and wear resistance, while the phenolic cage offers excellent dimensional stability across the operating temperature range (-30°C to 110°C).
71952 ACDGA/P4A Bearing Typical Application Areas
- Machine Tool Spindles: High-precision machining centers requiring exceptional rotational accuracy
- Precision Grinding Machines: Applications demanding minimal runout and vibration
- High-Speed Industrial Pumps: Where reliability and speed capability are critical
- Aerospace Positioning Systems: Precision motion control applications
- Medical Equipment: High-accuracy rotational systems in diagnostic and treatment devices
- Robotic Arm Joints: Precision positioning with combined loading requirements
