Using sealed bearing on crankshaft?

Insaniac · Post by **Insaniac** » Fri Mar 29, 2013 3:57 pm

Alright, so I'm looking for 20x52x14 sized bearings, and all that come up are sealed bearings. Could I use one of these bearings and remove the oil seals, or is there something about them that makes them not up to standards for use on a crankshaft? I keep seeing them called "track roller bearings". Here is the one in question. I did find one other source, this one. Would this one be alright? If anyone knows any other sources that'd be great, I might be able to find more as I just started searching.

Vintageman · Post by **Vintageman** » Sat Mar 30, 2013 3:20 pm

Usually they are not up to standard. Also true crank bearing may have locating pins or grooves.

Why don't/can.t you get real crank bearing?

Post by **oldjapanesebikes** » Sun Mar 31, 2013 3:52 pm

Finding an NOS for that might be a challenge. The second of the two you give links for might work, although I suspect it needs a hole for a locator pin ? You could also emailing Reiner (GTReiner1@aol.com) with the part number to see what he might have - he has the largest NOS selection of any source I know of.

GT750Battleship · Post by **GT750Battleship** » Mon Apr 01, 2013 12:59 am

+1 what Ian had to say,try Reiner,hasn't failed me yet!
GT750Battleship.

Insaniac · Post by **Insaniac** » Mon Apr 01, 2013 4:33 pm

Oh yeah, I totally forgot about the locating pin. NOS parts for my bike are next to impossible to find. You can find some things, but stuff like this isn't easy. I'll send him an email and see what he has.

old racer · Post by **old racer** » Tue Apr 02, 2013 6:14 pm

May i ask what crank this bearing is for.

Insaniac · Post by **Insaniac** » Mon May 13, 2013 9:20 am

It's for a T125. I thought I was gonna be lucky and not need the bearings, the ones I have are still usable I guess, but I'd feel alot better about replacing them, or atleast one since it seems not completely smooth. The part # is 09262-20028. I contacted Reiner and although he has quite the collection of parts, he doesn't have the bearings. The bearings have a hole for a locator pin and a slit for a "bearing stopper plate". Just finding 20x52x14 bearings are hard enough, seems it's not a standard size at all, but I did notice that 20x52x15s are readily available. Could I get one of these and have a machine shop shave a mm off the side and cut the slit and hole for the pin? Is this something that people normally have done, and if so, what do you think it'd cost? I can't imagine it'd be too expensive.

Using sealed bearing on crankshaft?

Using sealed bearing on crankshaft?

Re: Using sealed bearing on crankshaft?

Re: Using sealed bearing on crankshaft?

Re: Using sealed bearing on crankshaft?

Re: Using sealed bearing on crankshaft?

Re: Using sealed bearing on crankshaft?

Re: Using sealed bearing on crankshaft?