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M3 109mm= 4
71903 Ball Bearing
6211RS1 bearing is already greased
61911-2RS bearing has Rubber seals to protect the bearing from dust or any possible contamination
KBS10GUU NB Standard Type:Slide Unit
8mm Bore Timing Pulley 2mm Pitch 60 Teeth 6mm Wide Belt Groove for 3D printer GT2 Outer Diameter - 6 3/4 inch (6.75") M3 109mm= 48mm Bore Timing Pulley 2mm Pitch 60 Teeth 6mm Wide Belt Groove for 3D printer GT2 8mm Bore Timing Pulley 2mm Pitch 60 Teeth 6mm Wide Belt Groove for 3D printer GT2 Description 2mm pitch (GT2) 60 teeth 8mm bore 6mm width timing Belt With 2 set screw to secure to the stepper motor shaft. One pulley Type 6 no Flange Most Common Application 8mm shaft stepper motor and fits 6mm width timing belt 2mm Pitch Used on Kossel Delta and other similar 3D Printers
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