im looking at the idea of changing the spindle motor on my triac, mine currently has a 4k rpm spindle. it would be nice to have a minimum of 10000rpm.

having put some thought into it, it would appear easier to leave the power draw bar as is and just changing the spindle motor. the chinese water cooled spindle are a very reasonable price, they do a 3kw at 24000rpm. im thinking 2:1 so id be getting 12k rpm which would be perfect.

has anyone done something similar?

things i need to look into further -

what belt/pully does the power draw bar use now
can i get a pully that will fit a Chinese spindle that will give me a 2:1 ratio without the need to alter the one on the power draw bar. cos that would make life very easy.

all comments welcome