• Single universal joint

Article: 00138956

Single universal joint

A universal joint is a mechanical connection between rotating shafts which are generally not in parallel, but intersecting. "U-joints" transmit torque and motion.

U-joints are used in a variety of applications, wherever handling significant angular misalignment is the main focus. Typical applications include: articulating mechanisms, food processing equipment, replacement for expensive gearboxes, and drives where motor position must be moved angularly off centerline of the driven unit.

The oldest and most common type of u-joint is called the Cardan or Hooke type joint. It consists of hub yokes, connected by a cross shaped intermediate member. These popular u-joints are frequently used in automotive applications. Because the design incorporates several different piece parts, the moving parts of this type of u-joint usually require lubrication; and as the joint wears, the amount of backlash or free play within the joint itself grows. Even a lubricated Cardan u-joint will require periodic maintenance, and may leak lubricant.

Performance wise, Cardan u-joints can transmit relatively high torque with minimal radial loads. But, by design these u-joints have difficulty compensating for parallel offset and axial misalignment. Cardan types also introduce rotational inconsistencies into drive systems, a phenomenon known as "non-constant velocity rotation."

Specifications

  • Configuration: single

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