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An alternative to the SRJ is the universal joint, which consists of two revolute joints. [7] By using spherical rolling joints instead of universal, designers can reduce the number of joints to achieve the same result. Using a spherical joint as opposed to a universal joint also eliminates the problematic possibility of a kinematic singularity. [8]
A spherical roller bearing is a rolling-element bearing that permits rotation with low friction, and permits angular misalignment. Typically these bearings support a rotating shaft in the bore of the inner ring that may be misaligned in respect to the outer ring.
Spherical plain bearing Spherical roller bearing, with rolling elements at the contact surface. A spherical bearing is a bearing that permits rotation about a central point in two orthogonal directions (usually within a specified angular limit based on the bearing geometry).
Spherical Rolling Joint, a high precision ball joint consisting of a spherical outer and inner race separated by ball bearings Topics referred to by the same term This disambiguation page lists articles associated with the title SRJ .
A spherical roller thrust bearing. Spherical roller thrust bearings use asymmetrical rollers of spherical shape, rolling inside a house washer with a raceway with spherical inner shape. They can accommodate combined radial and axial loads and also accommodate misalignment of the shafts. They are often used together with radial spherical roller ...
In an automobile, ball joints are spherical bearings that connect the control arms to the steering knuckles. They are used on virtually every automobile made [4] and work similarly to the ball-and-socket design of the human hip joint. [5] A ball joint consists of a bearing stud and socket enclosed in a casing; all these parts are made of steel ...
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The relative motion of the races causes the rolling elements to roll with very little rolling resistance and with little sliding. One of the earliest and best-known rolling-element bearings are sets of logs laid on the ground with a large stone block on top. As the stone is pulled, the logs roll along the ground with little sliding friction. As ...