Those pics ?
- Thread starter johngb
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Thanks pete. So it maybe prudent to get a good motor first then and work around that. Something to think about pete
BrokenBiker
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You would ideally need a motor first, yes...the pulley needs to be a decent fit on the motor shaft so getting a pulley made then changing the motor could raise the issue of the motor shaft being a different size
Pete.
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"Post a picture of the machine, its speed chart and the motor data plate."
I may have to get the whole machine painted and reasembled ready for a motor and take final measurements before buying motor. In meantime do some research on motor for this machine. Thanks broken biker
There is no speed chart on machine pete
500e
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V-Belt Pulley Groove Specifications: Dimensions & Tolerances
Technical specifications for V-belt, Micro-V, & Polyflex JB pulleys. Includes groove dimensions, tolerances, & standards. Ideal for engineering reference.
studylib.net
Thanks 500eView attachment 522007
V-Belt Pulley Groove Specifications: Dimensions & Tolerances
Technical specifications for V-belt, Micro-V, & Polyflex JB pulleys. Includes groove dimensions, tolerances, & standards. Ideal for engineering reference.
I have previously owned a bank of 4 of those drills. The original pulleys have an unusual step pattern that does not match the regular/even steps found in most multi step pulleys. Consequently, for anyone missing a single pulley it is difficult to source a suitable replacement at a reasonable price. The effect of having two mismatched pulleys is that belt tension will change when different speeds are selected.
If you still need a pulley and want one that matches what you've already got, I could take a look for you. I have a large box full of pulleys. You'd need to confirm the bore size and type (plain, keyed, etc) step sizes and belt profile (eg A-section). If you are able to modify bore size that may make things easier.
If you still need a pulley and want one that matches what you've already got, I could take a look for you. I have a large box full of pulleys. You'd need to confirm the bore size and type (plain, keyed, etc) step sizes and belt profile (eg A-section). If you are able to modify bore size that may make things easier.
I have no bore size as yet as not sure if motor i have works. Not sure how to measure step sizes and there was no belt when purchased not much help I'm afraid. I thought I'd just send existing one away to get copied if i find someone who would be prepared to make one.
I really appreciate your offer of help in this matter 6ply but I think I'll have to try and workout how to measure the thing properly. Not easy as i have ME and suffer badly with brain fog so digesting and holding on to info is exceptionally difficult. I thought all I had to do was ask on this forum the required pulley size for my model pillar drill and hey presto .
BrokenBiker
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If you are starting with no pulley or speed chart then that either makes things easier because you just
The issue of a mismatched pulley/shaft isn't huge, just means having to get the pulley modified and/or a sleeve made for the shaft
As the drill has a back gear (I'm assuming it does as mine did) the OP may find he rarely needs to change the pulley ratio anyhow.
Were they the original motors.
Is that a 5 step pulley. Mine is a 4. Small one 108mm large 173mm. Your small pulley looks smaller than mine
Yes mine has back gear.
