Brass Spur Gear Module 1 with Hub 15-50 Tooth Motor Pinion Bore 4-12mm Precision
Number of teeth 12 - 50, Bore 4mm - 12mm. • Module is the model, representing the size of the gear teeth – the larger the module, the larger the teeth and the greater the force they can withstand. • Tooth surface Hardness: Hard (＞350HBW).