drejeled

Drejeled is a Danish term used in mechanical engineering to refer to a joint that allows rotation between two connected parts. It provides angular movement around a single axis while restricting translation and other rotations, making it a fundamental element in linkages and articulated mechanisms.

In practice, a drejeled is most often implemented as a revolute joint or a pin joint, where a pin, axle, or bearing constrains motion to one rotational degree of freedom. It can be designed with various bearing types (such as bushings, plain bearings, or ball bearings) to reduce friction and wear. Depending on the application, a drejeled may include seals, lubrication, and preload to manage backlash and improve stiffness and durability.

Common design considerations include load capacity, the range of motion, backlash, and life under cyclic operation. The choice of bearing, lubrication method, and material pairings influence performance in environments with dust, moisture, or high speeds. In robotics and automation, drejeled joints are essential for defining the kinematics of arms and mechanisms, enabling precise positioning and repeatable motion.

Drejeled are widely used in automotive linkages, manufacturing equipment, lifting systems, and consumer machinery where controlled angular articulation is required. While the term is primarily used in Danish, the concept corresponds to revolute or hinge joints in other engineering contexts.