Spherical Bearings
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Spherical
bearings have a capacity to carry high loads tolerate shocks loads, and are
self aligning. As they can tolerate limited speeds, spherical bearings are
used in vibrators, shakers, conveyors, speed reducers, transmissions, and
other heavy machinery. Spherical ball bearings are made in varying radial
thickness and axial widths to accommodate different loads.
Spherical plain bearings can accommodate a shaft or rod with varying
misalignment. They consist of a plain bearing, with a ball bushing, inside a
cylindrical housing. The housing may have a liner of different material to
minimize friction or provide self-lubrication. Many ball and liner materials
are available with different ratings for load capacity and lubrication
requirements.
Spherical bearings are relatively maintenance-free. Spherical plain
bearings and plain bushes are suitable for applications involving swivel
movements, high alternating loads, very high radial loads with a unilateral
load direction and high shock loads
Typical design attributes may include large bores, spherical rollers
accommodate heavy radial loads while permitting axial loading and relative
misalignment between the housing and the shaft. More contact area, inner
rings to resist cracking, allowance for static or dynamic misalignment, and
expansion capabilities are other features.
