This is a 4-Speed Worm Gearbox H.E.
Assembly Kit from Tamiya.
Gearbox features four gear ratios (84:1, 216:1, 555.4:1, 1428.2:1)
Gear ratio can be easily adjusted by altering the middle and final
gear attachment positions
4mm dia. threaded driveshaft included
Included gearbox attachment parts can be easily installed at a
choice of two attachment positions
Gearbox is compatible with other Education Construction items
Type 260 motor included - RPM: 5040 Max Efficiency, Voltage: 1.5V
Recommended
Separately available 130 and 140 motors can also be attached with
the included adapter
H.E. denotes High Efficiency
Pictorial instructions included
One 4-Speed Worm Gearbox H.E.
Length: 1.92" (49mm)
Width: 1.24" (31.5mm)
Height: 1.85" (47mm)