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The 71904 ACD/HCPA9ADBC is a super precision angular contact ball bearing with a 20mm bore and 37mm outer diameter, crafted from chrome steel for durability. It handles radial loads up to 2106 lbf and reaches speeds of 100,500 RPM, thanks to its ceramic balls.
With a 25° contact angle and moderate preload, it offers stable performance in high-speed applications. The phenolic cage ensures smooth operation and reduces friction.
This matched set of two bearings (DB arrangement) is ideal for precision machinery like spindles or CNC tools. Its open design allows easy lubrication, extending service life.
Weighing just 0.066kg, it’s lightweight yet robust. Suitable for temperatures from -30°C to 110°C, it meets PA9A tolerance standards for accuracy.
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How Does 71904 ACD/HCPA9ADBC Bearing Achieve High-Speed Performance?
71904 ACD/HCPA9ADBC Bearing features ceramic balls and a phenolic cage, reducing friction for smoother high-speed operation.
Its dynamic radial load capacity of 2106 lbf ensures reliable performance under stress.
The 25° contact angle design enhances stability, making it ideal for precision applications.
With a maximum speed of 100,500 rpm, it excels in demanding environments.
Chrome steel rings provide durability, while the matched arrangement of two bearings improves load distribution.
This design ensures consistent performance even under moderate preload conditions.
The open seal type allows for easy lubrication, maintaining efficiency over time.
Its compact size of 20 mm×37 mm×18 mm makes it suitable for space-constrained installations.
Key Fields for 71904 ACD/HCPA9ADBC Bearing
71904 ACD/HCPA9ADBC Bearing is widely used in machine tools, where its moderate preload and high-speed capability ensure smooth spindle operation. The ceramic balls reduce friction, making it ideal for precision machining.
In robotics, 71904 ACD/HCPA9ADBC Bearing supports articulated arms, providing stability and accuracy in repetitive movements. The matched arrangement enhances load distribution, extending service life in demanding applications.
For dental drills, 71904 ACD/HCPA9ADBC Bearing’s phenolic cage and chrome steel rings offer quiet, reliable performance. Its PA9A tolerance class ensures consistent accuracy in high-speed medical devices.
Automotive applications like electric vehicle motors benefit from 71904 ACD/HCPA9ADBC Bearing’s angular contact design. The lubricated construction reduces wear, even under continuous use in harsh conditions.
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