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HelicopterEngines Plugs Mufflers Fuel › OS 50 AND OS 50 hyper same bearings?
09-01-2009 08:43 AM  8 years agoPost 1
Diego

rrApprentice

Oviedo or Cartagena, Spain

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I´m checking the boca bearings site and now i see that the hyper and the non hyper use different bearings, but the TT50 uses the same as the OS50 is this right?

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09-01-2009 11:05 AM  8 years agoPost 2
mdu6

rrKey Veteran

Montreal

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They all use (OS50, Hyper50, YS50 and TT50) the same 6902 bearing.

Boca shows different part numbers because they have different materials (steel, stainless, ceramic etc) for the 6902.

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09-01-2009 12:50 PM  8 years agoPost 3
SteveH

rrProfessor

Texas

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Yep, even the new 55 uses the same bearing. The ONLY differences between the OS 50 Hyper and the older 50 Heli engine are the carburetor and the heat sink head. All other parts are the same part number.

The government cannot give you anything without first taking it from someone else.

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09-01-2009 03:42 PM  8 years agoPost 4
Diego

rrApprentice

Oviedo or Cartagena, Spain

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What about the front bearing is it the same also? is it a good idea to change both at the same time?

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09-01-2009 03:45 PM  8 years agoPost 5
JohnThompson

rrApprentice

Chesapeake, VA

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The front bearing seldom goes bad. I don't change it every time.

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09-01-2009 11:39 PM  8 years agoPost 6
Gearhead

rrMaster

Vt

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the front bearing has not changed from the Older Silver Head 50 to the Hyper, it's a NTN brand,,

as for Rear Bearings the Older Silver Head had an NSK Rear Bearing while the new Hyper has an un-marked Rear Bearing, my testing has shown the NSK is a much better Bearing..

Jim
Buzz Buzz Buzz

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09-01-2009 11:52 PM  8 years agoPost 7
BarracudaHockey

rrMaster

Jacksonville FL

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http://www.rc-bearings.com

Same bearings, much better prices.

Andy
AMA 77227
http://www.jaxrc.com

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HelicopterEngines Plugs Mufflers Fuel › OS 50 AND OS 50 hyper same bearings?
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