Gallery, Projects and General > How do I??

keyless pulley on a keyed shaft

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chipenter:
My milling machine has a 1hp motor with two 6mm set screws at 90 degrees and no keyway, not had any problems sins I put the second screw in , it worked loose with just one .

Will_D:
I have just received a brand new Crompton 0.55 kW motor for my ML7 upgrade to 3-phase.

It has a 19 mm spindle with a long 6mm key.

I can't just bore out the old motor pulley (as in I will have the pulley in the chuck and not on the motor :doh:)

No problem to make a new pulley but how do I remove the key? I dont really want to slot it by hand with the carriage.

It appears to be glued in place. I know I could grind it off but hey its a new motor!

My intention was to use two M8 grubs turned down to 6mm at the ends to engage the keyway.

Do they really glue in keys these days or does it just need a bit more persuassion?

John Stevenson:
Grab the end of the key with a pair of side cut pliers parallel to the shaft and lever up.

Will_D:
Thanks John for the info.

Its like pulling teeth - get the right tool and itrs easy.

Was a struggle but its out!

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