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Bushing for CA77 Swingarm?

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turtle racer
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Bushing for CA77 Swingarm?

Post by turtle racer » Tue Feb 19, 2013 1:15 pm

Is there a suitable replacement or supply for the the swing-arm bushings for a 1964 CA77 (Dream), pc. 7 of the swing-arm assembly drawing. The rubber is completely gone from mine.

Does any one know the size, ID x OD x Length? The ID appears to be 12mm and the length appears to be 40mm. I haven't tried to remove the outer OD of the bushing yet from the swing-arm, are there any tips for removing them?
HELP

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turtle racer
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Post by turtle racer » Thu Feb 21, 2013 1:27 pm

I carefully used a saw to split the outer part of the swing-arm bushing, ensuring not to saw the swing-arm, so I could remove the old bushing from the swing-arm.

The ID of the swing-arm where the bushing goes appear to be 28mm ID (or will be after I clean them up). I'm going to install 6001 bearings (12mm ID x 28mm OD x 8mm Tk). Two bearings with a 24mm spacer between them on each leg of the swing-arm. Four 6001 bearings and two homemade spacers total.

Anyone every tried this?

The other option was to have a couple sleeves made to fit into the swing arm to allow using two 12mm ID x 20mm long bushings (plain bearings) (brush) on each leg of the swing-arm. The 6001 bearings seem to be the speeder and less expensive solution.

48lesco
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Post by 48lesco » Thu Feb 21, 2013 2:33 pm

I would go with Honda parts. Northeast Vintage Cycle appears to have NOS in stock, Western Hills may as well.
-48

conbs
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52119-250-000

Post by conbs » Fri Feb 22, 2013 2:52 pm

Ebay auction 390535304914

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turtle racer
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Posts: 22
Joined: Sun Feb 19, 2012 7:19 pm
Location: Maine

Thanks for the part info

Post by turtle racer » Mon Feb 25, 2013 10:06 pm

48lesco and conbs Thank You for your help locating the parts. I'll probably will order up a pair of bushing (plain bearing) (brushes) in-case I need them.
I went ahead with the using the bearing. I'm interested in seeing how/if they will work. On each leg of the swing-arm I used two 6001 2RS bearings with a spacer between them. On the outside of each the leg I installed a heavy washer and on the inside of each leg, between the frame and the leg I installed another washer. The washers OD is bigger then the bearings OD, I think this will keep everything in place. The bearings were easily tapped into the swing-arm. The shaft that holds everything together had some nicks, dings, flaking chrome, and corrosion. I mounted the shaft in dill press and used sand paper to clean it up while it was spinning. Sticking the shaft outside overnight, its was colder then in a freezer, may have also helped in being able to tap the shaft into position.
This bike is too far gone to restore back to original. So I building it into, a sort of, cafe rat bike.
Thanks again
turtle

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