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The 71904 CD/P4ATBTA is a super precision angular contact ball bearing with a 20mm bore and 37mm outer diameter, crafted from high-quality chrome steel. It handles radial loads up to 2925 lbf and reaches speeds of 100,000 RPM, making it suitable for high-performance applications.
Designed with a 15° contact angle and open seal, it offers smooth operation and easy maintenance. The phenolic cage ensures durability, while the extra-light preload (Class A) enhances precision.
This bearing comes in a matched set of three (TBT arrangement), ideal for applications requiring tight tolerances, such as machine tools or spindles. It operates efficiently in temperatures from -30°C to 110°C.
Weighing just 0.11kg, it’s lightweight yet robust. Compatible with SKF bearings, it’s a reliable choice for replacements or upgrades. Perfect for precision engineering where accuracy and speed are key.
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How Does 71904 CD/P4ATBTA Bearing Achieve Super Precision?
71904 CD/P4ATBTA Bearing features a 15° contact angle, optimised for high-precision angular contact applications.
Its chrome steel rings and balls ensure durability and smooth operation under dynamic radial loads up to 2925 lbf.
The phenolic cage maintains ball alignment, reducing friction and enhancing performance at speeds up to 100,000 rpm.
With a P4A tolerance class, it delivers exceptional accuracy for demanding tasks.
71904 CD/P4ATBTA Bearing operates efficiently in temperatures from -30°C to 110°C, ensuring reliability in varied conditions.
Its matched arrangement of three bearings provides balanced load distribution.
The extra light preload (Class A) minimises vibration, making it ideal for precision instruments.
Lubrication is pre-applied, simplifying installation and reducing maintenance needs.
Common Applications of 71904 CD/P4ATBTA Bearing
71904 CD/P4ATBTA Bearing is widely used in high-speed machine tools, where its precision angular contact design ensures accurate spindle rotation. The phenolic cage reduces friction, making it suitable for continuous operation.
In automotive applications, 71904 CD/P4ATBTA Bearing supports gearbox systems, providing smooth performance under angular loads. Its metric sizing and P4A tolerance class make it a reliable choice for European car models.
For medical imaging devices, 71904 CD/P4ATBTA Bearing’s chrome steel construction offers durability and consistent performance. The extra light preload ensures minimal vibration, crucial for sensitive equipment.
Automation systems benefit from 71904 CD/P4ATBTA Bearing’s matched arrangement, which enhances stability in robotic arms. The open seal design allows for easy lubrication, extending service life in high-use environments.
In consumer electronics like high-end printers, 71904 CD/P4ATBTA Bearing’s low friction and high-speed capability ensure quiet and efficient operation. Its compact size fits well in space-constrained designs.
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