Helical Gear Use in Helical Gear Box   Large View         S - 11 Helical Gear Box Input Shaft 25 mm Output Holo Shaft 25, 28, 30 mm Ratio - 1/12.5 Large View         S - 12 S - 3, 25 Input Shaft 25 mm Output Shaft 35 mm Ratio - 1/15, 1/30, 1/35, 1/40,            1/50, 1/60 Large View           S - 13 SU - 2.75 Input Shaft 20 mm Output Shaft 22 mm Ratio - 1/15, 1/30, 1/35, 1/40 , 1/60 Large View

Worm Gear Use Our Gear box : S1, S2 ....   Large View         S - 14 SU - 1.75 Input Shaft 15 mm Output Shaft 19 mm Ratio - 1/30 Large View         S - 15 SU - Vartical Type Input Shaft 25 mm Output Shaft 35 mm Ratio - 1/12, 1/15, 1/30 Large View                 Jokey Gear Box     Large View