EDCWDTYYECTypeA: 1:1 bevel gear reversing angle device 10mm shaftTypeB: 1:1 commutator, one input and two output forward and reverse 10mm shaftParameters of bevel gearmodulus:1.25ModelNumber of teeth:20 toothInner hole:10mmexternal diameter:27mmOuter diameter of step:22mmTooth length:7 .8mmTotal thickness:15 mm Fixing screw hole:M5*2Fixing screw hole texture of material:45No.1 Steel1 than 1 Overall weight of bevel gear box0.31kgOverall weight of one in two out forward and reverse rotation gearbox0.37kgFrame material: aluminum alloy : Aluminum alloy processing, punching and cutting process may produce scratches and will not affect the use.The product has no fixed mounting holes, and the buyer needs to drill and fix it by himself, and there is no cover on the top and bottom.This product is a simple model and cannot be used for high-speed operation, and is used where accuracy is not required.Highly demanding and careful purchase! Gear 45 steel tooth surface is high-frequency hardened and hardened. There will be noise in operation, so be cautious with high requirements for sound!