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Re: Mark VII Idler Shaft Damage

Posted: Sun Feb 25, 2024 3:37 pm
by kmilesone
I have a bearing that goes into the end of the control sheave on a small metal block with two pins that connect to the control cam. The one that was in mine was really small and does not make contact with the inside of the control sheave is that normal?
I'm guessing that bearing should fit sung?

Re: Mark VII Idler Shaft Damage

Posted: Sun Feb 25, 2024 4:23 pm
by JPG
15mm will not fit the 5/8" idler shaft. The bearing marking will usually NOT specify the 5/8" id deviation.

Re: Mark VII Idler Shaft Damage

Posted: Sun Feb 25, 2024 4:27 pm
by JPG
kmilesone wrote: Sun Feb 25, 2024 3:37 pm I have a bearing that goes into the end of the control sheave on a small metal block with two pins that connect to the control cam. The one that was in mine was really small and does not make contact with the inside of the control sheave is that normal?
I'm guessing that bearing should fit sung?

Snug and likely staked.

Re: Mark VII Idler Shaft Damage

Posted: Sun Feb 25, 2024 11:44 pm
by GerikBensing
The control sheave bearing seems to have some wobble in it with the part that comes out the end. Is it normal? Bearing seems to spin fine besides that. Probably a non-issue since it’s held in place by the nylon speed controller part. I’ll check with Motion with the info provided to see what they can do for me. Thanks!

Re: Mark VII Idler Shaft Damage

Posted: Mon Feb 26, 2024 9:11 am
by kmilesone
sorry, I have been researching bearing for a week now and gave the wrong part number here is the right one 6202-10-ZZ 6202-5/8-ZZ (5/8x35x11mm) C3 Premium Shielded Radial Ball Bearing 10 Pack $16.99 from amazon 2 Metal Shield ID: 5/8" OD: 35mm Width: 11mm.

I have 10 and only need three I'm willing to share if needed.

Re: Mark VII Idler Shaft Damage

Posted: Mon Feb 26, 2024 10:03 am
by JPG
I am glad you did not purchase the incorrect one!

Re: Mark VII Idler Shaft Damage

Posted: Mon Feb 26, 2024 5:55 pm
by miken
kmilesone wrote: Mon Feb 26, 2024 9:11 am I have 10 and only need three I'm willing to share if needed.
I think Gerick may have purchased some shaft material, and you have some bearings that he needs, maybe PM him and work out a trade?

Mike -

Re: Mark VII Idler Shaft Damage

Posted: Sun Mar 03, 2024 6:20 pm
by miken
Here are a few pics of the first completed shaft for JPG.

Re: Mark VII Idler Shaft Damage

Posted: Sun Mar 03, 2024 6:22 pm
by miken
Here's another one.

Re: Mark VII Idler Shaft Damage

Posted: Sun Mar 03, 2024 6:34 pm
by miken
... and an action shot, milling the keyseat.