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Pulleys

Mike G

Mike G

Petrified Pine
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Mike
Can someone help with the nomenclature of pulleys, please. Now, I understand diameter, I think, but then there are two other numbers listed such as "24/8mm". I assume that 24 is the diameter of the shaft, so I can only think that 8 is the width of the keyway. Is that right?

For instance:

https://www.machinemart.co.uk/p/150mm-v-belt-pulley-248mm/
 
Yarp, you assume correctly.

I try to buy taper lock pulleys exclusively now if something needs replacing, much easier to deal with, a much better quality product and it's pretty much a permanent fix and will never move on the shaft.
 
.........toddling off to Duckduckgo "taper lock pulleys".......
 
Mike,

If you click the link for the technical data, it will show a little table, confirms your statement about the dimensions.
 
Trevanion":2seonsgw said:
Yarp, you assume correctly.

I try to buy taper lock pulleys exclusively now if something needs replacing, much easier to deal with, a much better quality product and it's pretty much a permanent fix and will never move on the shaft.
Click to expand...

Cast iron taper lock pulleys (or sheaves, if you prefer) are definitely the way to go. Worth the money all the way.

Kirk
 
In the description there doesn’t seem to be any mention of the belt size for use with these pulleys?
 
Woodster":m0y3cdvz said:
In the description there doesn’t seem to be any mention of the belt size for use with these pulleys?
Click to expand...
Or profile.
PCD is not a term I've heard applied to pulleys either - usually effective diameter is used.
In my experience at least, PCD is Pitch Circle Diameter - the diameter of the circle in which holes are drilled in a flange for example.
Mike, if there's anything critical about this project, go to Fenner's website and you'll get chapter and verse, including Taperlocks (a trade name, but other makers are out there e.g. Dunlop).
Taperlocks are brilliant but just be aware that the correct tightening sequence is critical or you'll have two halves!
Duncan
 
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