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Aug 03, 2010, 06:33 PM
Registered User
Discussion

help with graupner flex shafts ?


right i would like to put one of these shafts into my mini mono so do they have at the end of the coupling a flex bit instead of soild ?

http://www.cornwallmodelboats.co.uk/...ex-shafts.html

sorry if i sound dumb just need to know so i have a bit of flex beacues i dnot think motor will go low enough also i thought they were cheap ? are they worth it ?


cheers alex
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Aug 03, 2010, 07:46 PM
I feel the need for speed!
scorpion1's Avatar
The picture is small but it says: "Stainless Steel Shaft with Nickle Plated Brass Tube and Brass Bushings."

I would take that as being a solid shaft.

Graupner makes flex couplers, dont know what size you need... http://www.offshoreelectrics.com/pro...?prod=grp-3344
Aug 04, 2010, 02:10 AM
Boaters are nice people.
Hi Alex,

These shafts are designed for scale boats with slow revving motors, hence the brass bushings.
If you use a flex coupler and put stress on the inside bushing, it'll wear relatively fast and will start to rattle and leak.

If you only run the boat every once and a while that's no problem, 'heavy' use will result in the above situation.

I'd rather go for a 'real' flexshaft and strut/stinger in that case.

Regards, Jan.
Aug 04, 2010, 02:23 AM
nick 30
nick30head's Avatar
i agree with scorpion and jan, could use a solid shaft with flex coupler or buy a complete flex shaft, go with the flexi shaft, its cheaper


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