Guys,
Im looking to run my monster mill MM3 grainmill off a motor using a pulley setup.
The motor I am looking at using is a 1/2hp (0.37KW) capacitor start motor with a 5/8 drive shaft which spins @ 1425 RPM
the smallest pulley I can get for such shaft is 1.25" and I wanted to try to keep the pulley on the MM3 to 10" or less if possible. So 1425/10*1.25= 178RPM at the mill. Cool were close to 200 RPM and between the suggested 150 - 250 RPM monster mill recommend.
Next what size pulley? well I dont want too bit of a pulley so lets go for 12" center to center
cool all set - lets punch it into a calculator to work out belt length http://www.csgnetwork.com/pulleybeltcalc.html ok so 44" belt should be mickey mouse - hold on 138 deg belt wrap? is that going to have enough grip to drive the loaded mill?
Am I doing this right? is 138 degrees of wrap enough ?
Do i need to go a bigger set up pulleys? but isnt that going to end up with the same problem? Do i need to space the pulleys further appart - ie longer belt? but wont that be more likely to jump off ?
advice from people in the know or people who have motorised their mills in the past would be appreciated.
Regards,
Komodo
Im looking to run my monster mill MM3 grainmill off a motor using a pulley setup.
The motor I am looking at using is a 1/2hp (0.37KW) capacitor start motor with a 5/8 drive shaft which spins @ 1425 RPM
the smallest pulley I can get for such shaft is 1.25" and I wanted to try to keep the pulley on the MM3 to 10" or less if possible. So 1425/10*1.25= 178RPM at the mill. Cool were close to 200 RPM and between the suggested 150 - 250 RPM monster mill recommend.
Next what size pulley? well I dont want too bit of a pulley so lets go for 12" center to center
cool all set - lets punch it into a calculator to work out belt length http://www.csgnetwork.com/pulleybeltcalc.html ok so 44" belt should be mickey mouse - hold on 138 deg belt wrap? is that going to have enough grip to drive the loaded mill?
Am I doing this right? is 138 degrees of wrap enough ?
Do i need to go a bigger set up pulleys? but isnt that going to end up with the same problem? Do i need to space the pulleys further appart - ie longer belt? but wont that be more likely to jump off ?
advice from people in the know or people who have motorised their mills in the past would be appreciated.
Regards,
Komodo