Motor end /axial play ????
Motor end /axial play ????
(OP)
hello
can any one suggest the minimum and maximum axial/end play for the induction motor with antifriction bearing. If axial play is more what may be the bad effect on the equipment ?
can any one suggest the minimum and maximum axial/end play for the induction motor with antifriction bearing. If axial play is more what may be the bad effect on the equipment ?





RE: Motor end /axial play ????
If it moves more than is allowed by the mechanical seal (typically +/- 0.015" to 0.030") then it can cause the seal to leak or cause damage.
RE: Motor end /axial play ????
And besides, you should check with the motor manufacturer, not ask Eng-Tips questions without giving any information, we have some pretty bright people here, but mind reading isn't one of our strengths.
It is a capital mistake to theorise before one has data. Insensibly one begins to twist facts to suit theories, instead of theories to suit facts. (Sherlock Holmes - A Scandal in Bohemia.)
RE: Motor end /axial play ????
Thanks for reply
This motor drives the pump which is using for propane transfer.
Motor power =200HP
RPM=1800
Motor bearing : Antifriction bearing
Arrangement of equipment : Horizontal
I want to know the general thumb rule or whatever the method to decide the best axial paly for the induction motor (For both case horizontal and vertical).
RE: Motor end /axial play ????
It is a capital mistake to theorise before one has data. Insensibly one begins to twist facts to suit theories, instead of theories to suit facts. (Sherlock Holmes - A Scandal in Bohemia.)
RE: Motor end /axial play ????
There must be thousands of major types of antifriction bearings.
You need to get in touch with the motor manufacturer and find out exactly what bearings are to be supplied.
The bearings at each end of the motor are usually different, to allow for differential thermal expansion.
The bearings will be still different if the motor is specified for use with the shaft axis vertical, because motor manufacturers use the cheapest bearings possible, so the default, for shaft axis horizontal, is bearings that cannot support the rotor's weight when the shaft is vertical.
Mike Halloran
Pembroke Pines, FL, USA