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Item No:72007
Technicraft Series No.7
4-SPEED HIGH POWER GEARBOX H.E.
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Image shows illustration.
This 4-Speed High Power Gearbox H.E. is of the type which is often used at robotics contests. By changing the motor pinion gears (10T, 12T), the position of the spur gears, as well as the middle and final gear assembly, you have a choice of either 39.6:1, 47.6:1, 61.7:1, or 74.1：1 gear ratios to meet your requirements. There are two attachment positions for the 4mm dia. threaded drive shaft. Crank arm, hex hub, and Type 260 motor are included. Separately available Type 130 and Type 140 motors are also compatible.
![](<img src="//d7z22c0gz59ng.cloudfront.net/cms/img/usr/item/7/72007/72007_4c1.jpg" />
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