Author Topic: Front Bearing Help Needed  (Read 325 times)

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Offline antibus

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Front Bearing Help Needed
« on: May 07, 2018, 08:02:51 pm »
I am installing new bearings on the front wheel. For this project I have used a dedicated bearing pulling tool and a bearing installation tool. The service manual states to drive the bearings until they bottom out. When I do this the relationship between the inner collar (in-between the L and R bearings) and the bearings seems so tight they do not turn easily with my fingers. I believe the inner collar is not lining up correctly as I am driving the bearing into place.
1. How do you keep the inner collar aligned while driving the second bearing in place. 2. are the new bearings destroyed if the collar is misaligned? Any advice is appreciated.
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Offline MAN OF BLUES

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Re: Front Bearing Help Needed
« Reply #1 on: May 07, 2018, 08:46:23 pm »
I am installing new bearings on the front wheel. For this project I have used a dedicated bearing pulling tool and a bearing installation tool. The service manual states to drive the bearings until they bottom out. When I do this the relationship between the inner collar (in-between the L and R bearings) and the bearings seems so tight they do not turn easily with my fingers. I believe the inner collar is not lining up correctly as I am driving the bearing into place.
1. How do you keep the inner collar aligned while driving the second bearing in place. 2. are the new bearings destroyed if the collar is misaligned? Any advice is appreciated.

Stick the axle in, and wiggle it back and forth, from both sides, this should tell you if its all alligned, tapping on the side of the extended axle using a plastic mallet could/should allow it to free up and allign...
Its my experience that on this bike, and also on the C10, that inner spacer tube is in fact al little shorter (couple thouandths) than the space between the postive stops on the bearing bores, which does lead to them being tight when both are pounded in using the bearing tool, completely. Its kind of tough to feel when to stop tapping, and the spacer allignment feels vague until it touches both inner races. If you feel as if they are tight, and restricted in rotation, I can only say two things... as I coat the outer races with anti sieze compound when I do them, and I press one in until it clears the circlip groove, and I insert the clip on one side, I follow it up with tapping the opposite one in only until I feel it contact the spacer...which I allign by dropping the axle down from the top, thru the asssmbly, as I use a tube type bearing driver which allows this..
I don't think it would harm anything if you GENTLY insert the axle and let it slide down and using its own weight to tap against the inner race, on one side, and I do mean "tap" not bang, and repeat it on the opposite side, which should reposition the outer races slightly without damage to the bearings.. its all by feel, and hammering would be bad, it just takes a small amount of movement to reposition them and install the other clip.
In practice, the bearings themselves do sort of "self center" in use, accomplishing the same effect, on a new set of lubed bearings.. as there is clearance (again, a couple thousandths) between the outer race face, and the retaining clips. When all assembled, the axle, outer spacer, inner spacer, and inner races are all compressed together, and the balls and outer races, along with the wheel, allign to that solid stack.

30 YEARS OF KAW.....Rich R. (the other one..)  COG 5977  JUSTAMEMBAHNOW
and if you are gonna call me names... it's MR. Analdweeb if you please...

Offline antibus

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Re: Front Bearing Help Needed
« Reply #2 on: May 07, 2018, 09:15:04 pm »
Thank you MOB. I was able to get the axle through and turn the wheel holding the axle. I feel a steady rhythmic sensation as the wheel turns (I would describe it as a clicking, however there is no sound associated with it as I can tell). Since I drove both bearings to a solid stoping point, I am wondering if I have flexed them against the inner collar and thus ruined them. When I took the bearings out I was able to move the inner collar to the side a small amount to provide a lip for bearing removal. Now I cannot move the collar to the side with my fingers. Sounds like I may have used too much force to seat the second bearing.
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Offline MAN OF BLUES

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Re: Front Bearing Help Needed
« Reply #3 on: May 07, 2018, 09:58:35 pm »
As I noted, you still might try slipping the axle back in, and using it kinda like a "slide hammer" from both sides, to kinda tap the inner races outward just a scosche... ich will in turn, float the outer races back out also, and free them up... by reducing the compression between them and the center tube spacer... a little coaxing won't hurt anything, just dont hammer on them.
They should move slightly and recentralize everything enough to consider them ok.

30 YEARS OF KAW.....Rich R. (the other one..)  COG 5977  JUSTAMEMBAHNOW
and if you are gonna call me names... it's MR. Analdweeb if you please...

Offline antibus

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Re: Front Bearing Help Needed
« Reply #4 on: May 07, 2018, 11:46:46 pm »
MOB,

Thank you for the advice. Using the axle to "tap" on the inner race of the bearings backed them out just enough to turn freely. It was unnerving to "tap" where I am not supposed to, however it seems to have worked. Hopefully I will get the bike back together in time for the Bun Cooler.
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