Page 6 of 6
Re: 80 swingarm replacement bearings
Posted: Wed Oct 29, 2014 1:23 pm
by Larry Zimmer
Thanks on the early model note, Dave. I wasn't certain which they had. Regarding machining the swingarm, Mike, I never looked at it. However, I would expect that the wall material on the arm might become a bit thin. Might be worth a look, though. Although, finding something on ebay, or Louis, or ?, with good/serviceable bearings may very well be the financial approach.
Re: 80 swingarm replacement bearings
Posted: Thu Oct 30, 2014 5:21 pm
by CopperCollar
Looking at an 80 swing arm I have. I would be reluctant to bore it for a larger bearing unless it was going to become a garage queen.
I have a lead on bearings but once again they would have to be ground to correct size.
Mike
Re: 80 swingarm replacement bearings
Posted: Thu Oct 30, 2014 7:25 pm
by EMS
I wonder whether this could be made to work somehow..
http://www.ebay.com/itm/1pc-new-GEBK16S ... 35d7518b9b
One of the biggest problem that I see is, there does not seem to be a standard angular contact bearing size with a 16mm ID. You get either 15 or 17mm
Re: 80 swingarm replacement bearings
Posted: Fri Oct 31, 2014 9:27 am
by CopperCollar
Stock is 16x38x12 this one is 16x38x21.
Would require a 3mm spacer.....looks like the best option I have seen.
I wonder how a radial bearing compares to an angular contact bearing. I'll have to study up on this as I have no engineering experience.
Mike
Re: 80 swingarm replacement bearings
Posted: Fri Oct 31, 2014 10:17 am
by EMS
The 21 mm width is actually the width of the inner spherical race, which could be machined down to the same width as the outer race. In our application, the spherical inner is not required. Look at the dimensional sketch.
Re: 80 swingarm replacement bearings
Posted: Sun Nov 09, 2014 1:25 am
by CopperCollar
Darn Mike,
I keep looking at the drawing and I just can't see what you are referencing.
Mike
Re: 80 swingarm replacement bearings
Posted: Sun Nov 09, 2014 8:48 am
by EMS

Sorry, Mike, I cannot see the drawing anymore. This bearing has a spherical inner race that swivels, which would allow an axle running through it at an angle to the outer race. That is why the inner race is wider than the outer race.
If one would grind the inner race down to the same width as the outer... that was I was thinking...

Re: 80 swingarm replacement bearings
Posted: Sun Nov 09, 2014 10:03 am
by CopperCollar
Now that makes a good picture in my head...
Interesting, I think one of us will have to try that one day as the OEM bearing availability seems to be non existent.
Mike