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U-joints, or universal joints, are critical components that connect two rotating parallel shafts that are not always co-linear. They allow for the transmission of power around obstacles, making them essential in various applications. Common uses include drivelines in cars, steering columns, and even hospital beds. They are designed to handle specific angles and loads, contributing to their effectiveness in multiple-joint systems. This overview explores how U-joints work along with their applications and design parameters.
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U-joints and You S. Beckett Tracy S. Robert Larson
What is a U-joint? U-joints connect two rotating parallel shafts that are not always co-linear.
Why are U-joints needed? • Input and output shaft are not co-linear • Transmit power around an obstacle
Common Applications • Drivelines in cars • Steering columns • Hospital beds • Socket wrench extension • Trident submarine periscopes
Angle of link shaft Motor RPM Torque Life Environment Multiple-joint systems Design Parameters