Wednesday, April 8, 2020

Where is a thrust bearing installed in an auxiliary engine? And why?

Axial location of the crankshaft may be required if the coupling does not incorporate a thrust 
housing. This is achieved by forming white metal rings on the sides of one main bearing shell 
that allows the shaft to run with a small clearance between running faces on the two 
adjacent webs. 
In some engines a small collar may be provided at one side of the bearing. It is important to 
appreciate that only one such locating bearing should be fitted to any one shaft, otherwise 
the differential thermal expansions of frame and the crankshaft may cause problems.

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