Bondtech DualDrive gears for 1.75mm and 3.0mm 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 M3 setscrew, fits on a shaft with a flat side as those on standard Nema17 motors. A secondary drivegear with integrated high quality bearings and a shaft diameter 3.00 length 20 mm in precision ground hardened 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.