OS 105 HZ Stainless Bearings

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  • OS 105 HZ Stainless Bearings
  • OS 105 HZ Stainless Bearings
  • OS 105 HZ Stainless Bearings


OS 105 HZ Stainless Bearings

Front Bearing: SR6ZZ

Rear Bearing: S16003

RCBearings heli bearings are high quality alternatives to expensive OEM part number bearings.  Made to exacting tolerances, you can expect a long, trouble-free life at a fraction of the cost.  Our bearings are made from either AISI 52100 bearing steel or corrosion resistant 440C stainless steel and front bearings come with non contact shields.

NOTE:  All heli engines .40ci and above should use a rear bearing with a high speed plastic retainer!  We source these retainers from Japanese manufacturers that make the best.  There used to be almost daily postings on heli forums of pictures of destroyed engines due to metallic retainer failures.  That is until OS and Thunder Tiger went to plastic retainers!  Beware of other sellers that try to pass off cheap standard bearings with metallic retainers for your expensive heli engine!

If your engine isn't listed, call our Technical Support line and we will see if we can make up a set for you.  We have over 400 different bearing types in stock and thousands more available.

We only sell premium industrial grade bearings with most being ABEC-3 or better.  We never sell cheaper hobby-grade bearings! Our bearings are used in such products as museum art reproduction printers, underwater propulsion systems, hotrod manufacturers, military wind tunnel testing, semiconductor manufacturing, commercial printers and world-class competition model aircraft. We have partnered with several manufacturers for over twenty years to produce bearings to meet or exceed our customers exacting requirements.


Did not workout?  No Problem!  We offer a 30 Day Money Back Guarantee.


Fast, Fast, Fast! We will try ship it the same day it is ordered!

Trusted Seller & Support

RcBearings LLC. Call us if you need assistance!

Technical support only (what bearing do I need, will this bearing work for me, etc): (720) 480-5879

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3 Reviews

  • 5
    Os105 bearings

    Posted by Ian holder on 27th Aug 2018

    Put these in my engine and there the best bearings I have ever used in a engine so smooth and sounds much better than any other engine bearings I’ve used thanks Rc bearings.

  • 3
    Os 105 hzr

    Posted by Unknown on 22nd Sep 2015

    Don't know how good last they are yet but they look great

  • 5
    Bearing for my O.S.105

    Posted by Ray on 27th Oct 2014

    The bearing are as described. The front bearing is better constructed than the factory bearing. The bearing arrived faster than expected!
    I'll be looking here for other bearing that I'll need to replace!

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