Need adivce for thin section ball bearing assemly
Need adivce for thin section ball bearing assemly
(OP)
Need some idea on how to install the last few balls for a full complement ball bearing (7.5" OD, 7" bore and 1/8" ball), it's a thin section 4-point type and required >95% fill race. Thanks.





RE: Need adivce for thin section ball bearing assemly
With four-point races, you can't tolerate filling grooves.
I suppose you could split/crack the outer race, but don't expect miracles in terms of life.
Least awful solution, still awful, is to split either race in a transverse plane, i.e. manufacture as two thin chamfered rings, and use the housing or shaft to hold them together, e.g. with two snap rings.
Mike Halloran
Pembroke Pines, FL, USA
RE: Need adivce for thin section ball bearing assemly
If you have to go as stated in the OP you might look into getting a split thin series bearing and remove the retainer to add more balls. On thin bearings there is a hell of an increase in torque and wear especially if you have much preload.
RE: Need adivce for thin section ball bearing assemly
Cheers
Greg Locock
SIG:Please see FAQ731-376: Eng-Tips.com Forum Policies for tips on how to make the best use of Eng-Tips.
RE: Need adivce for thin section ball bearing assemly
RE: Need adivce for thin section ball bearing assemly
Just buy the damn things; you can't make 'em cheaper.
Mike Halloran
Pembroke Pines, FL, USA
RE: Need adivce for thin section ball bearing assemly
I would have several basic bearings on site as you will loose a couple or more until you get it right.
Read the whole page as there are some general caveats as well as specifics on using full compliment bearings depending on the method of manufacture.
h
Anecdotal:
Prior to the days of readily available split bearings we would split our own and it usually took 3 to get one. This went on for a number of years until a bearing company came to our rescue. This was the days when races were cracked instead of ground.