In stock, ready to ship. 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 in precision ground hardened steel. Gear set for filament size 1.75 mm, primary gear with inner diameter 5 mm, secondary gear with two needle bearings,M3x2 setscrew and one 3 x 20 mm shaft. Gear set for filament size 1.75 mm, primary gear with inner diameter 8 mm, secondary gear with integrated needle bearings, M4x3 setscrew and one 4 x 22 mm shaft. Gear set for filament size 2.85 – 3.0 mm, primary gear with inner diameter 8 mm, secondary gear with integrated needle bearings, M4x3 setscrew and one 4 x 22 mm shaft.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.
