tapered shaft fittings

[johnh]

Hi Guys,

anybody know where i can get a tapered bore pulley or sprocket or adaptor from? specifically 17.4mm 1:8 taper.
it seems to be a common shaft size for hydraulic pumps/motors but i can't find anywhere on that there internet where i can buy anything that goes on the end of one of those shafts.
it's ultimately to run a chainsaw from a hydraulic motor.

thanks,

John.

[johnh]

i suppose i'll have to take the shaft out and get it turned down straight. no wonder those hydraulic motors were such a bargain!

[John_Allen]

eBay may be your friend - or a quick search with your favourite search engine!

Here's a selection from eBay's UK listings:

http://www.ebay.co.uk/sch/i.html?_nkw=t ... &_from=R40

Perhaps a message to one of the sellers may help you find the exact thing you need!

[denbute]

The pullyes John mentiones are used with what is known as a taper bush or taper lock to fit them onto a cilindrical shaft with keyway. These cannot be used to fit pullyes onto a tapered shaft!

Go to a local power transmission shop that supplies belts/pullyes/chains/sprockets/bearings/seals. Most of them will have predrilled pullyes that can be finished to the desired bore.
They most likely will have an inhouse machinist or a machineshop that does some work for them. That's the kind of people you're looking for.

[John_Allen]

Denbute is right of course, I should have remembered as one of the fitters I worked with occasionally turned pulleys as denbute describes: I ordered and supplied the plain pulleys for him.

[johnh]

yes, i've thought about the possibility that a taper lock pulley would fit but unfortunately even the smallest taper lock pulleys, 1008 i think, are too big and i have not even been able to find out what the taper is on them just out of interest. thanks anyway though lads for your input.

a machine shop it will have to be.