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HomeAircraftHelicopterEngines Plugs Mufflers Fuel › YS91 SR rear bearing references.
06-03-2009 10:19 AM  9 years agoPost 1
yannick

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South Korea

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Hello All.

I need to replace the rear bearing of this engine and I would like to know the exact reference to get it from a local bearing supplyer.

Does anyone have this reference or the dimensions of that bearing please?

thanks for you hepl.

Rgds

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06-03-2009 10:28 AM  9 years agoPost 2
dogg5306

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Brussels, Belgium

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The rear bearing is exactly the same as a OS91 one...
That is the 16003 17x35x8

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06-03-2009 11:37 AM  9 years agoPost 3
synodontis

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United Kingdom

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OS 90 rear bearing usually have a plastic cage and YS have a metal one.

I replace my rear bearings with SKF bearings not the stock OS bearings. It's cheaper and better quality but you have to get from some bearing supplier.

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06-03-2009 02:16 PM  9 years agoPost 4
Chuckie

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Crofton Maryland

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The main bearing in the YS SR comes with a plastic or delrin cage. I get my bearings from either YS or rc-bearings at here

Please stand by for faster service!

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06-03-2009 02:20 PM  9 years agoPost 5
DS 8717

rrProfessor

Here wishing i was somewhere else

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The new SR comes with a plastic cage,it is a different part number but is the same size as the old YS 91 and the same size as the OS 91.

YOU ONLY LIVE ONCE..IF YOU LIVE IT RIGHT THATS ALL YOU NEED

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06-03-2009 03:23 PM  9 years agoPost 6
jakeg1999

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San Diego, CA

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I second RC-bearings....great service and the price is right!

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06-03-2009 04:08 PM  9 years agoPost 7
DS 8717

rrProfessor

Here wishing i was somewhere else

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Dont use ceramic bearings,they will destroy your motor when they fail.

YOU ONLY LIVE ONCE..IF YOU LIVE IT RIGHT THATS ALL YOU NEED

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06-04-2009 10:56 AM  9 years agoPost 8
yannick

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South Korea

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thank you
thank you guys.

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06-04-2009 11:45 PM  9 years agoPost 9
JJMAN (RIP)

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Chesapeake, Virginia - USA

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Dont use ceramic bearings,they will destroy your motor when they fail.
-2 on that, I learned that lesson the hard way.

JAY HIGGS

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