I was wondering if anyone knows of a online store for a new belt to a Sherline 5400 mill? Other than SHERLINE web site.
I keep busting belts. Im Fly cutting Cast-iron. And yes im taking .005-.010 cuts with a very slow feed rate-manual feed. Carbide cutter.
High rpm and the motor is not stalled when belts break. Not over loading the motor. The belts just don't last long. Purchase two from Sherline and one of the NEW belts lasted one hour. Im now on my last belt.

Next qestion is about the X2 MILL Belt drive mod?
If your Fly cutting cast-iron. Whats the max Dia Fly cutter and max depth of cut? Befor you bust the belt?
Im not sure if the X2 Belt can handle milling Cast-iron & Steel.
May be I should get metal gears for the X2 im building?
Im so sick of this Sherline. Need more POWER. Well better belts on the dam thing. Would be nice?