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HomeAircraftHelicopterKasama Srimok 90 › Linear bearing in tail boom support replacement?
05-03-2010 04:19 AM  8 years agoPost 1
husafreak

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Livermore, NorCal

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Had a little mishap! now ready to fly but the linear bearing in the tail boom support for the tail rotor pushrod) is very rough. Feels like a ruined bearing.. Anywhoo, no one has the entire tail boom support in stock in USA and I don't see a part number for just the bearing. Has anyone replaced just the bearing? Where are they available? Has anyone just tossed it (the bearing)and redesigned the support? Thanks

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05-03-2010 03:58 PM  8 years agoPost 2
blingbling rapt

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Sweden

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I think the best and easy way is to measure it and buy it from any bearing store

Richard

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05-04-2010 07:46 AM  8 years agoPost 3
nyc863

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australia

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I had the same issue (with new kit!), and bought a replacement

Perhaps ultimate-heli has it in stock.
http://www.ultimate-heli.com/websit...asama_tail.html

but it looks like you'd have to email them to know.

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05-07-2010 03:56 PM  8 years agoPost 4
husafreak

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Livermore, NorCal

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I removed the linear bearing and it is 4mm ID x 8mm ID x 12mm long. There are four rows of tiny ball bearings inside. The Kasama part number for the bearing only is KSM30-119. Of course other bearing supply houses may have it in stock but I hear the smaller parts like these will become available through Kasama's distributors in the future.
FWIW I removed the bearing and popped out the remaining balls with a pin, I then reassembled the support and ran the pushrod through the bearing housing as a plastic bushing. Maybe not as good as the ball bearing but until I get a replacement from Kasama it is working fine. I didn't really notice a difference in flight.

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05-07-2010 03:59 PM  8 years agoPost 5
The Old Guy

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UK Surrey

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should be able to make a nylon or teflon one esy enough

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05-07-2010 05:58 PM  8 years agoPost 6
blingbling rapt

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Sweden

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This web site have a lot of different bearings check it out http://www.rc-bearings.com/catalog/

Richard

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