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Homebrew Idler Tyres

Trusted V-Ratter Registered
Posts: 72

So ..I'm currently sidetracked from my N1700 restoring a Sanyo Betacord VTC-5150.

Sadly although I can find a suitable belt for the idler assembly I drew a blank on the idler tyre.

So in desperation I turned to fleabay ...and purchased a 1mtr length of nitrile water/fuel hose from china ..

ID 13mm OD 18mm

I figured I hopefully can cut a slice from the end to make my own ..

anyone attempted this sort of thing before ?

The dimensions are about right ..but the variable is the rubber itself ..

consistency and hardness.

Gotta be worth a punt ?

is there an alternative ?

If so ..I havent found it yet.

I guess an 'O' ring might do the job ..but an 'O' ring isn't square section.



Topic starter Posted : 19/11/2020 7:07 pm
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Katie Bush
Illustrious V-Ratter Moderator
Posts: 5079

I've used 'O' rings before today on many and varied machines, audio and video, and they can work surprisingly well. I even keep two that I use as a test belt to drive N1700 head drums! - No idea how long they would last in regular use, and I do use two in parallel, but for a cheap and dirty test, they work fine. Agreed, the N1700 drum belt is a flat profile, but two round section 'O' rings can still deliver enough traction to spin up and test.

Nitrile might be a bit too soft and stretchy, but if it's not too difficult to gain access its fitment, there'd be no harm trying.

Posted : 20/11/2020 11:52 pm
Vipersan liked
Reputable V-Ratter Registered
Posts: 263

A couple of years back I picked up a kit of O rings from Aldi for just a few bucks. Very useful!

Posted : 22/11/2020 10:23 pm
Vipersan liked