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The 71903 ACD/P4AQBCD is a super precision angular contact ball bearing with a compact size of 17mm by 30mm by 28mm, crafted from durable chrome steel. It features a 25° contact angle and comes in a matched set of four bearings for balanced performance.
Designed for heavy preload and high-speed applications, it handles radial loads up to 2385 lbf and spins smoothly at speeds up to 121,000 RPM. The open design allows easy lubrication, while the phenolic cage ensures quiet operation.
Its P4A tolerance class guarantees exceptional accuracy, making it ideal for precision machinery like spindles or CNC equipment. The bearing operates reliably in temperatures from -30°C to 110°C.
Weighing just 0.068kg, it’s lightweight yet robust for its size. Interchangeable with SKF bearings, it’s a practical choice for replacements or upgrades in demanding industrial settings.
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Performance Features of 71903 ACD/P4AQBCD Bearing
71903 ACD/P4AQBCD Bearing is designed with a 25° contact angle, optimising load distribution for angular contact applications.
The chrome steel rings and balls enhance durability, supporting dynamic radial loads up to 2385 lbf.
Its phenolic cage ensures smooth operation at high speeds, reaching up to 121,000 rpm.
The matched arrangement of four bearings provides stability and precision in demanding setups.
With a preload class D, 71903 ACD/P4AQBCD Bearing maintains consistent performance under heavy loads.
The open seal design allows for easy lubrication, extending its service life.
Key Fields for 71903 ACD/P4AQBCD Bearing
71903 ACD/P4AQBCD Bearing is commonly used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. The heavy preload and P4A tolerance class make it suitable for demanding industrial environments.
In robotics, 71903 ACD/P4AQBCD Bearing provides smooth motion control in articulated arms, thanks to its matched arrangement and phenolic cage. The high-speed capability (up to 121,000 rpm) is ideal for automated systems requiring rapid, precise movements.
For medical imaging devices, 71903 ACD/P4AQBCD Bearing’s chrome steel construction offers reliability and low noise during operation. The open design allows for easy lubrication, ensuring long service life in critical applications.
Automotive applications like electric power steering benefit from 71903 ACD/P4AQBCD Bearing’s ability to handle combined radial and axial loads. The metric sizing ensures compatibility with a wide range of vehicle components.
In 3D printers, 71903 ACD/P4AQBCD Bearing’s precision and low friction contribute to consistent print quality. The phenolic cage reduces vibration, making it a reliable choice for high-resolution printing.
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