Abstract
The paper deals with the analysis of a special hydrodynamic bearing incorporated in a precision cylindrical grinding machine developed at CMTI. The special bearing is an improvement of the earlier conical multilobe bearing developed at CMTI. The improvement effected is particularly in automatic preloading through hydrodynamic thrust bearing where the preload increases with increase in speed and thereby improving the performance of the bearing over a wide range of speeds. The initial axial clearance in the thrust bearing, taper on the thrust surface, the lobe depth in the conical bearing are the main controlling parameters.
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