Zeberoxyz 2PCS Set GT2 Synchronous Wheel 20&60 Teeth 8mm Bore Aluminum Timing Pulley with 2PCS Length 200mm Width 6mm Belt (20-60T-8B-6)

These GT2 wheels and belt are so far out of specification its a joke!!!! +/- 1mm!!!!! Dont waste your money on this crap!!!!!!

one of the larger gear/pulley or whatever you call is was clearly machined off axis

Had to get a set with a different bore but these are working nicely.

The pulley and belt are good quality.

Great for a precision 2 to 1 ratio.

Not everyone buys these for printers or whatever they advertised it for. It said it could be used with DC motors. Didnt say the belt size but it was no bigger then 200mm. Way to small. And they didnt have any option for a bigger belt unless u buy it seprete. Belt was way to short for the power I needed to make. But other then that the gears or solid and work good. Even with other belts I had to use. Amazon does not have a lot of options for belts. Other then these types. Im using a carpet cleaner belt right now. Even rubber bands put out more power. Good ones not cheap ones.

The Size and flexibility of These units make them usable for all kinds of applications other than 3D printing. They can be doubled up for higher torque for a positive drive, and not get out of sync. It would be nice if they could individually handle more force.

Works as des

Lo he usado para automatizar una montura ecuatorial.

Habe mich über den schnellen Versand Super gefreut mein erster Antrieb in diese Richtung bei näherer Betrachtung musste ich Feststellen das der Äußere Ring von der größeren Riemenscheibe defekt ist er ist Abgebrochen und sogar durch gebrochen zudem fehlt bei der Heilen Scheibe noch die Madenschraube.