Chrism3

19th Jun 2010, 05:54 PM

I have a 4 speed lathe model GMF 1-TOOK1440 which I bought second hand some years ago but have only just dusted off to use.

Although the motor speed is given as 1440 rpm I do not know what the drive speeds are coming off the 4 pulley wheels - there is no 1:1 ratio, there are two up ratios and two down ratios.

I have the manual, but it does not specify the speeds. I suspect there may have been a sticker on the lathe that has fallen off .

Does anyone have one of these lathes, or alternatively can someone tell me how to calculate the speeds from the pulley diameters?

Any help appreciated.

Chris

.

Although the motor speed is given as 1440 rpm I do not know what the drive speeds are coming off the 4 pulley wheels - there is no 1:1 ratio, there are two up ratios and two down ratios.

I have the manual, but it does not specify the speeds. I suspect there may have been a sticker on the lathe that has fallen off .

Does anyone have one of these lathes, or alternatively can someone tell me how to calculate the speeds from the pulley diameters?

Any help appreciated.

Chris

.