Helical Gear Box 125, 140, 180, 160, 200 Input Shaft 40 mm Output Hollo Shaft 60 mm Ratio - 1/12.5 Large View         S - 1 SU - 5 Worm Input Shaft 35 mm Gear Output Shaft 50 mm Ratio - 1/15, 1/30, 1/40, 1/50, 1/60 Vertical & Horizontal Large View                 S - 2 SU - 4 Worm Input Shaft 35 mm Gear Output Shaft 45 mm Ratio - 1/15, 1/30, 1/40, 1/50, 1/60 Vertical & Horizontal Large View       S - 3 SU - 3 Worm Input Shaft 25 mm Gear Output Shaft 35 mm Ratio - 1/10, 1/15, 1/20, 1/30, 1/40 Large View         S - 4 SU - 3 Round Worm Input Shaft 25 mm Gear Output Shaft 35 mm Ratio - 1/10, 1/15, 1/20, 1/30, 1/40 Large View         S - 5 SU - 2.5 Horizontal Worm Input Shaft 15 mm Gear Output Shaft 22 mm Ratio - 1/30, 1/40, 1/50, 1/50, 1/60 Large View

S - 16 SU Double Redction Gear Box Input Shaft 22 mm Output Shaft 45 mm Ratio - 1/50...........1/2000 Large View         S - 6 SU - 2.5 Vertical Worm Input Shaft 22 mm Gear Output Shaft 25 mm Ratio - 1/10, 1/15, 1/30, 1/40, 1/50, 1/60 Large View                 S - 7 SU - 60 mm Flach Type Worm Input Shaft 24 mm Gear Output Shaft 28 mm Ratio - 1/10, 1/15, 1/20, 1/30 Large View         S - 8 SU - 50 mm Flach Type Worm Input Shaft 14 mm Gear Output Shaft 25 mm Ratio - 1/20, 1/30, 1/40 Large View         S - 9 SU - 40 mm Flach Type Worm Input Shaft 14 mm Gear Output Shaft 18 mm Ratio - 1/15, 1/20, 1/30 Large View         S - 10 Helical Gear Box Input Shaft 25 mm Output Shaft 30 mm Ratio - 1/30 Large View