V-pulley's

Hi can anyone give me a little advise on a twin V pulley i have , It has a key way but no locking screw , is this the same as fitting a flywheel + gib key . not that i have yet fitted a flywheel but if it is the way to go i will fit , although im just concerned the key is not locked . thanks

if its a gib key it relies on a tapper to keep tight on the shaft so as you drive the gib key in which has a angle on it locks the pulley on .

matt

Thanks , yes its a key but not like the flywheel key , it was just that all the pulleys i have seen had a locking bolt on the pulley