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The 71905 ACD/P4A is a super precision angular contact ball bearing with a 25mm bore and 42mm outer diameter, designed for high-speed applications. Its compact 9mm width makes it suitable for tight spaces, while the 25° contact angle efficiently handles combined loads.
Made from chrome steel with a phenolic cage, it offers smooth operation at speeds up to 53,000 RPM. The open design allows for easy lubrication, ensuring long service life even under dynamic radial loads of 1433 lbf.
This bearing meets P4 (ABEC-7) tolerance standards, providing exceptional accuracy for precision machinery. It’s interchangeable with SKF bearings, simplifying replacements.
Ideal for applications like spindle motors or CNC tools where high speed and precision are crucial. Weighing just 0.042kg, it’s lightweight yet durable for its size. Works reliably in temperatures from -30°C to 110°C.
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Why Choose 71905 ACD/P4A Bearing for Precision Tasks?
71905 ACD/P4A Bearing features a 25° contact angle, ideal for handling combined radial and axial loads with high precision.
Its chrome steel construction ensures durability and resistance to wear in demanding applications.
With a maximum speed of 53,000 rpm, it delivers smooth and efficient performance.
The phenolic cage maintains ball alignment, reducing friction and extending service life.
Common Applications of 71905 ACD/P4A Bearing
71905 ACD/P4A Bearing is widely used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. The phenolic cage reduces friction, making it suitable for high-speed operations.
In robotics, 71905 ACD/P4A Bearing provides smooth movement for articulated arms, thanks to its 25° contact angle. Its P4 tolerance class guarantees consistent performance in automated systems.
For medical imaging devices, 71905 ACD/P4A Bearing’s chrome steel construction offers reliable support under radial loads. The lubricated design ensures quiet operation, which is essential in sensitive environments.
Where Is 71905 ACD/P4A Bearing Used?
You’ll often find 71905 ACD/P4A Bearing in CNC machining centres, where its high-speed capability and precision are key. The open seal design allows for easy lubrication adjustments.
In electric motors, 71905 ACD/P4A Bearing handles both radial and axial loads efficiently. Its lightweight design (0.042 kg) makes it a practical choice for compact applications.
Built for Versatility: 71905 ACD/P4A Bearing
71905 ACD/P4A Bearing works well in 3D printers, ensuring smooth linear motion with minimal vibration. The chrome steel balls enhance durability for long-term use.
For laboratory equipment, 71905 ACD/P4A Bearing’s temperature range (-30° to 110°C) suits various testing conditions. Its ABEC-7 rating ensures precision in sensitive measurements.
Automotive vs Aerospace: Applications of 71905 ACD/P4A Bearing
In automotive systems, 71905 ACD/P4A Bearing supports gearbox components, where its dynamic load capacity (1433 lbf) is beneficial. The metric sizing fits standard European designs.
For aerospace applications, 71905 ACD/P4A Bearing’s high-speed tolerance (53,000 rpm) makes it ideal for auxiliary power units. The phenolic cage resists heat buildup during extended use.
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