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Product description QXSJEDYCH Bevel Gear Parameters Module: 1 mod. Number of teeth: 20 teeth. Inner hole: 6mm/8mm Outer diameter: 21 mm. Outer diameter of the step: 16 mm. Tooth length: 7 mm. Total length: 13.2 mm. Mounting screw hole: M4 x 2 mounting screw hole. Material: S45C carbon steel. Installation centre spacing: 18 mm. 1 to 1 bevel gear, total weight 0.16 kg. The total weight of the forward and reverse gear with one input and two outputs is 0.17 kg 1 to 2 bevel gear commutators, total weight 0.55 kg. Frame material: aluminium alloy. Product description: when machining, punching and cutting aluminum alloys, scratches may occur that will not affect the use This product has no fixed mounting holes, the buyer needs to punch holes and fasten it by themselves, and there is no cover on the top and bottom This product is a simple model and cannot be used for high-speed operation. It should be used in places where the accuracy is not high. Careful shopping for high-precision requirements; Product description QXSJEDYCH Bevel Gear Parameters Module: 1 mod. Number of teeth: 20 teeth. Inner hole: 6mm/8mm Outer diameter: 21 mm. Outer diameter of the step: 16 mm. Tooth length: 7 mm. Total length: 13.2 mm. Mounting screw hole: M4 x 2 mounting screw hole. Material: S45C carbon steel. Installation centre spacing: 18 mm. 1 to 1 bevel gear, total weight 0.16 kg. The total weight of the forward and reverse gear with one input and two outputs is 0.17 kg 1 to 2 bevel gear commutators, total weight 0.55 kg. Frame material: aluminium alloy. Product description: when machining, punching and cutting aluminum alloys, scratches may occur that will not affect the use This product has no fixed mounting holes, the buyer needs to punch holes and fasten it by themselves, and there is no cover on the top and bottom This product is a simple model and cannot be used for high-speed operation. It should be used in places where the accuracy is not high. Careful shopping for high-precision requirements; QXSJEDYCH Bevel Gear Parameters Module: 1 mod. Number of teeth: 20 teeth. Inner hole: 6mm/8mm Outer diameter: 21 mm. Outer diameter of the step: 16 mm. Tooth length: 7 mm. Total length: 13.2 mm. Mounting screw hole: M4 x 2 mounting screw hole. Material: S45C carbon steel. Installation centre spacing: 18 mm. 1 to 1 bevel gear, total weight 0.16 kg. The total weight of the forward and reverse gear with one input and two outputs is 0.17 kg 1 to 2 bevel gear commutators, total weight 0.55 kg. Frame material: aluminium alloy. Product description: when machining, punching and cutting aluminum alloys, scratches may occur that will not affect the use This product has no fixed mounting holes, the buyer needs to punch holes and fasten it by themselves, and there is no cover on the top and bottom This product is a simple model and cannot be used for high-speed operation. It should be used in places where the accuracy is not high. Careful shopping for high-precision requirements