matt.c
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 posted on 5/7/08 at 08:43 AM |
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BEC gear change bearings.
My gear changer had a nylon bush fitted to it and i want to change it to bearings.
I went a bought some bearings for that size tube but the bearings dont fit tight.
Is there a way i can maybe squash the tube to make the bearings fit tightly?
Or at worse should i make a new changer? Where am i likly to find some of this tube on a sat?
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mookaloid
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| posted on 5/7/08 at 09:01 AM |
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You could try some bearing fit - I think it might be a loctite product - this is supposed to fill the gap and sets hard securing the bearing in place
- alternatively araldite steel from Halfords?
If it doesn't work you can always remake the changer.
Cheers
Mark
"That thing you're thinking - it wont be that."
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Mr Clive
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| posted on 5/7/08 at 09:27 AM |
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Could you try some thin steel rolled almost into a tube to act as a shim?
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simoto
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| posted on 5/7/08 at 09:56 AM |
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Hard to know without seeing the actual fit and tolerance first hand but, some type of epoxy maybe?
Good luck with it.
striker/blade now complete, thanks to all on this site.
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charlierevell
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| posted on 5/7/08 at 10:03 AM |
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'coke' can? Its what we used to use on crank tapers on bikes when they started to round off as its nice and thin!
You could make a shim up to fit the whole body then, using some bearing and stud lock to hold it all together.
Tango orange is an 'IN' colour!!
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Ricks-9r
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| posted on 5/7/08 at 10:06 AM |
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what about grub screws to clamp the bearing in place 3 should do it
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adithorp
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| posted on 5/7/08 at 11:07 AM |
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Lock-tight bearing-fix should hold them. Sounds like you got the wrong size bearings for tube though?
afrian
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Jon Ison
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| posted on 5/7/08 at 11:13 AM |
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Go round the inside with a center pop then knock the bearing in using bearing fit as suggested above, for such a low stress area it will not move.
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beppesignori
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| posted on 5/7/08 at 11:22 AM |
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Ive used same bearings for my MK pedals...I just cut the nylon bush down to size to fit between the bearings so they cant move inwards when you
tighten the bolt, and then went around the ouside and tapped it at 3 places to create a tight fit. Not ideal if this was a highly stressed bearing,
but for this use, I cant see a big problem with it.
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