assembly of bearing
assembly of bearing
(OP)
Hi All,
I have the peculiar doubt, can a bearing be fitted into a housing where the housing surface is not ground but is spark eroded? to reframe it, if the OD tolerance be maintained but the surface roughness maintained to that obtained from a spark (EDM) but not a ground finish, can it still be an appropriate assembly. The product I'm talking about has high tolerances on endplay and radial play.
Thankyou very much,
Lalitha
I have the peculiar doubt, can a bearing be fitted into a housing where the housing surface is not ground but is spark eroded? to reframe it, if the OD tolerance be maintained but the surface roughness maintained to that obtained from a spark (EDM) but not a ground finish, can it still be an appropriate assembly. The product I'm talking about has high tolerances on endplay and radial play.
Thankyou very much,
Lalitha





RE: assembly of bearing
MadMango
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RE: assembly of bearing
RE: assembly of bearing
Do you want to plunge EDM a blind hole for the bearing or wire EDM a through hole for the bearing? Based on my experience the wire process can be controlled better than the plunge unit but there has to be a start hole fashioned somehow.
The wire process can attain very good bore tolerance, in the hands of a good machine and experienced operator, sufficient to mate with the outside of the outer race of a bearing, particularly if the bore length to bore diameter is < 1.
Plunge EDM'ing may require multiple setups to get a perfect blind hole cylinder with square shoulder.
RE: assembly of bearing
We are still working on the different layouts, and would do a cost & Effect analysis to opt for the best alternative. Appreciate your help and thankyou once again.