Need a Frame 56 size motor pulley

[Ian AustinParticipant @ianaustin]

Posted by Robin on 08/08/2018 11:20:34:

Have you actually spun up a Taperlock pulley? Andrew Tinsley said they are neither accurate nor repeatable which is not encouraging.

I saw that, but I think this is a reference to the concentricity run-out on the taper – possibly an issue in large diameter lower-quality taper-locks, but unlikely to be a problem in the wee little ones we're talking about. There is widespread industrial use now of taperlocks – if they were no good (i.e. maintenance = cost money) they would have disappeared. Also, note in uniformly-loaded low-service factor situations they don't need a key (see Fenner Drives link below), i.e. unless your torque overwhelms the shrink-fit-like grip that the taper exerts on the hub, or you have high dynamic loadings. Mine are for a machine that is still in bits.

Read this Fenner Drives technical guide on how to use them:

https://www.fptgroup.com/dss/docs/689_06_Fenner_Shaft_Fixings.pdf

Edited for better info

Edited By Ian Austin on 08/08/2018 12:10:31

[RobinParticipant @robin]

That Fenner thing was interesting, I din't know you could get Taperlock hubs, wonder if I could convert one of them to a grinding wheel holder? I might even be able to balance the blooming thing…

[JasonBModerator @jasonb]

Can you not use a separate taperlock bush and pulley, if you look at this one it puts the V groove on the screw side unlike that one in your opening post and under £10 the pair

[RobinParticipant @robin]

That's the self same advertisement that caught me out…

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