Bearingsize 50 hyper

[skovsbo motors]

So my 50 hyper also smashed the bearings(original)
Not that i havent read all the post about bad OS bearings, just didnt want to change before needed
Can you help me with the correct size, i will see if i can get them locally in a nice stainless quality
As i see it the big one must be 15x28x7mm but the small is the problem :-(
Is it mesured in inch ?? 0,875......
Has anyone experience with the best "ballclerance" cn,c3,c4,c5, i think the less resistance the more output power

Kim

[BarracudaHockey]

http://www.rc-bearings.com he probably has the sizes listed.

[skovsbo motors]

Thanks
Didnt find the size but the bearingnumber 6902 and R6Z i will see if that is enough or else order direct from rc-bearings

Kim

[Mercuriell]

The rear bearing is an unshielded 15X28X7 (6902ZZ) and the front bearing is an imperial sized single shielded R6Z .375X.875X.2812 in (9.5X22X7mm) Inner DiameterXOuter DiameterXWidth.

It's the rear bearing that gets the corrosion probably due to exposure to nitro methane so good idea to go stainless. See pic below both bearings taken out of the engine at the same time !

[skovsbo motors]

The rear bearing is an unshielded 15X28X7 (6902ZZ) and the front bearing is an imperial sized single shielded R6Z .375X.875X.2812 in (9.5X22X7mm) Inner DiameterXOuter DiameterXWidth.

It's the rear bearing that gets the corrosion probably due to exposure to nitro methane so good idea to go stainless. See pic below both bearings taken out of the engine at the same time !

Thank you just the info i needed
And the bearings on the picture looks exacly like they were taken from my hyper

Another thing : have any experienced the engine getting touchy on the needle when the bearings went bad??, the last days i was not able to tune it , to lean,to rich, to lean, and when clicking out my revlock started hunting etc. etc. my last few flights wasnt any fun thats why i took it apart

Kim