This is a pulley for your stepper motor or lead screw shaft. It is a 42 tooth XL037 size which uses the very common XL belts which come in 3/8" or 1/2" widths. The pulley can accept either width belt. It is flat on one side and has a hub on the other with a set screw to secure it to your shaft.
WEIGHT 12 OUNCES
TOOTHED PORTION THICKNESS 0.56"
HUB DIAMETER 1.5"
BORE 12 MM
MATERIAL CAST IRON
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