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[Fastelectrics]

Has anyone tried to use the small collet style chucks that you sometimes get on a PCB drill motor as a propshaft coupling? Are they any good?

[justboatonic]

Has anyone tried to use the small collet style chucks that you sometimes get on a PCB drill motor as a propshaft coupling? Are they any good?

I know people who use them on RC helicopter tail rotor flexi shaft drives so if fitted correctly will be fine in a boat (which is what they are mainly used in). Good quality ones arent cheap though.

[Martin (Admin)]

I think something like that is used on highend flexy shafts, in race boats.

Caution:  Many of the small cheap chucks are made out 'monkey' metal, poorly made and not balanced.... OK for light scale boats I guess.....

[David Shaw]

I use collect couplers all the time.
The ones I use are from either


www.hydromarine.de
https://mbp-rc.de


Good quality and accurate.


David

[Martin (Admin)]

 Oo, yes they are nice! - https://www.hydromarine.de/Flex-Hard-Shaftsystems/Collets-Couplings:::6_42.html

[tsenecal]

if you don't mind buying from the west side of the great pond:

https://www.offshoreelectrics.com/products.php?cat=Couplers+for+Electric+Motor

[Tombsy]

The MBP collets are the best I've used, they clamp the shaft with no setscrews to throw off the balance.
https://mbp-rc.de/collet-clutches