19pcs White Plastic Assorted Gear Kits Double Speed DIY Wheels Gear Reducer Engine Parts

Description 19pcs White plastic assorted gear kit double speed DIY wheels gear reducer engine partsfit for DIY toy robot parts Specification Material PlasticDirection Right handTooth profile Conical gearShape Ring speedModule 0 5 total 19 species Thickness 4 5mmCalculation Speed ​​Formula Diameter Number 2 X 0 5 MM DoubleDeckReductionGearModelExternal ToothNumberInternalToothNumberHolediameter mm Loose TightDiameter mm 16102B16102 05Loose918102A18101 95Tight1020082B2082 05Loose1120102B20102 05Loose1122082A2281 95Tight1222102B22102 05Loose1224102B24102 05Loose1324122B24122 05Loose1326082B2682 05Loose1428102B28102 05Loose1530122B30122 05Loose1630162A3016 001 95Tight1632082B328 002 05Loose1734102B3410 002 05Loose1838082B388 002 05Loose2040102B4010 002 05Loose2146082A468 001 95Tight2448102B4810 002 05Loose2550102A5010 001 95Tight26Model rating 1 The first two digits of the code the number of teeth outside the speed2 Coding three or four digits the number of teeth in the speed3 Coding the fifth digit the size of the opening of the speed4 Code for the final English One hermetic B weakly coupled2A center axis is 1 95mm With 2mm optical axis compact and rotate with the optical axis the center axis of 2B is 2 05mm With a 2mm light axis weakly coupled free to rotate on the optical axis for example 16102B size the axle of 10 holes in the outside teeth with 10 opening 2MM Speed ​​diameter 16 2 X 0 5 MM 9MM speed diameter of 9MM Features Made of goo