Due to temp. variation the shaft will expand axially, to accept this expansion only one bearing on the shaft is fixed axially in the housing, are called Fixed Bearing.
It can also mean that an object is at a steady angle away from another object
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A footstep bearing is essentially a cast-iron block with a gunmetal bush that has a hollow collar fitted on its top. This bearing is used to keep the shaft upright in a vertical position. The shaft is fixed in place and not allowed to rotate by a pin.
Sleeve bearing
properties of bearing alloy
The bearing number can be checked out depends on the size of ID (Inner Diameter), OD (Outer Diameter) and H (Height) of this bearing.
Any bearing ball or race that is not in good shape, worn, cracked, insufficiently lubricated.Over tightening the bearing can cause overheatingMissalignment is a fault (thoug not of the bearing itself)Dirt