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The 71904 ACD/P4ADBD is a super precision angular contact ball bearing, measuring 20mm by 37mm by 18mm. Made from chrome steel, it’s designed for heavy preload and high-speed operations, handling radial loads up to 2106 lbf.
With a 25° contact angle and open design, it offers smooth rotation at speeds up to 100,500 RPM. The phenolic cage ensures durability and reduces friction during use.
This matched set of two bearings (DB arrangement) is ideal for applications requiring high precision, such as machine tools or spindle drives. It operates well in temperatures from -30°C to 110°C.
Weighing just 0.07kg, it’s lightweight yet robust. Compatible with SKF bearings, it’s a reliable choice for replacements or upgrades in precision machinery.
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Performance Features of 71904 ACD/P4ADBD Bearing
71904 ACD/P4ADBD Bearing is designed with a 25° contact angle, ideal for handling combined radial and axial loads.
Its chrome steel rings and balls ensure durability, while the phenolic cage reduces friction for smoother operation.
With a dynamic radial load capacity of 2106 lbf, it performs reliably in high-speed applications.
The P4A tolerance class guarantees precision, making it suitable for demanding tasks.
Common Applications of 71904 ACD/P4ADBD Bearing
71904 ACD/P4ADBD Bearing is widely used in high-speed machine tools, where its precision angular contact design ensures accurate spindle rotation. The heavy preload and P4A tolerance class make it suitable for demanding industrial environments.
In robotics, 71904 ACD/P4ADBD Bearing supports articulated arms, providing smooth movement and long service life. The matched arrangement of two bearings enhances stability in dynamic applications.
For aerospace components, 71904 ACD/P4ADBD Bearing’s chrome steel construction handles both radial and axial loads efficiently. Its high-speed capability makes it a reliable choice for aircraft systems.
Medical imaging devices benefit from 71904 ACD/P4ADBD Bearing’s low noise and vibration. The phenolic cage material ensures quiet operation, crucial for sensitive diagnostic equipment.
In automotive transmissions, 71904 ACD/P4ADBD Bearing offers durability under heavy loads. The 25° contact angle optimises performance in gearbox applications.
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