Bondtech DualDrive gears for 2.85-3.0 mm filament, Precision custom cnc machined with extreme precision guarantees that you get the grip you always wanted.
Manufactured in hardened steel with an protective surface treatment will give you long lifetime and extreme reliability.
The gears come as a set consisting of a Primary drivegear with a M4 setscrew, fits on a 8 mm shaft with a flat side as those on Nema17 motors with a planetary gearbox attached. A secondary drivegear with integrated high quality bearings. Add your shaft of your preference below, we have them in two lenghts 22 and 25 mm, hardened ground steel.
A Lithium based grease is recommended to use on the gear section and in side the needle bearings for low friction and to avoid wear. A small dab of grease is enough.