(45MM) - Clutch Motor Pulley for Industrial Sewing Machine, Diameter 45MM

I order of 45mm pulley but actual came 40mm pulley .write on pulley is 45 mm but I checked by measure tap and found only 40mm

Excellent fit, decreased the speed of the machine

Excellent slows down the machine

I'm new to industrial sewing machines so when I bought mine I already knew I needed a servo motor to slow things down. I researched online a bit before making my purchase of a 750W Consew servo motor. Several sewing forums suggested, that to really slow things down, I won't be happy until I also purchase a speed reducer at around $130, (like I'm rolling in the dough after an industrial sewing machine, and a servo motor purchase). I came across a couple of you tube videos that suggested a 45 mm pulley to replace the 75 mm pulley that comes on the servo motor. I opted for this $8 pulley. I've never done a pulley replacement before, but a you tube video and an allen wrench made it do able. Took me less than 5 minutes. I can get my machine to a stitch at a time now. Everything fit perfect, even tho I wasn't even sure what size the spindle on the servo motor was.I am very happy with this purchase.

Pulley wood not fit the shaft ! Upon measuring I found that the bore was tapered and the key way was only cut a third of its needed depth! If you don’t have a machine shop u can’t use this junk!

Great product if it had more qualified professionals making them.I had to use a file to finish the keyway slot, must of had a wornout keyway cutter. Spent half hour filing as to Not making it Too wide.Come On people do the work correctly.