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The 7218 ACD/P4ATBTB is a super precision angular contact ball bearing with a 90mm bore and 160mm outer diameter, crafted from durable chrome steel. It handles radial loads up to 59625 lbf and operates smoothly at speeds up to 17000 RPM.
Its 25° contact angle and matched set of three bearings (arranged > TBT) provide excellent stability for angular loads. The phenolic cage ensures quiet operation and long service life.
This bearing is preloaded lightly (Class B) for precision applications and works in temperatures from -30°C to 110°C. Ideal for high-speed machine tools or spindles where accuracy is crucial.
Weighing 6.8kg, it’s robust yet suitable for precision setups. Compliant with P4A tolerance standards, it’s interchangeable with SKF bearings for easy replacement.
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Performance Features of 7218 ACD/P4ATBTB Bearing
7218 ACD/P4ATBTB Bearing is designed with a 25° contact angle, optimising load distribution for precision applications.
Its chrome steel rings and balls enhance durability, supporting dynamic radial loads up to 59625 lbf.
The phenolic cage ensures smooth operation, even at high speeds of 17,000 rpm.
With a matched arrangement of three bearings, it provides stability in angular contact applications.
7218 ACD/P4ATBTB Bearing operates efficiently in temperatures ranging from -30°C to 110°C.
Its light preload design reduces friction, extending service life and maintaining performance.
Industrial Uses of 7218 ACD/P4ATBTB Bearing
7218 ACD/P4ATBTB Bearing is commonly used in high-precision machine tools, where its angular contact design handles both radial and axial loads efficiently. The matched arrangement of three bearings ensures stability in demanding applications like CNC spindles.
In automotive systems, 7218 ACD/P4ATBTB Bearing supports high-speed components such as turbochargers and electric motor shafts. Its light preload and phenolic cage contribute to smooth operation and reduced friction.
For robotics, 7218 ACD/P4ATBTB Bearing’s P4A tolerance class makes it ideal for articulated arms and precision positioning systems. The chrome steel construction provides durability in continuous operation.
Medical imaging devices benefit from 7218 ACD/P4ATBTB Bearing’s low vibration and high-speed capabilities. The open design allows for easy lubrication, ensuring long service life in critical equipment.
In aerospace applications, 7218 ACD/P4ATBTB Bearing’s ability to handle combined loads makes it suitable for flight control systems. The temperature range ensures reliability in varying environmental conditions.
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