5:1 Right Angle Worm Gearbox 90° Angle Drive Steering Gear Reducer 20T Reduction Gearbox Simple Mechanical DIY Module with 8 mm Shaft

PGFUN 5:1 Right Angle Worm Gearbox 90° Angle Drive Steering Gear Reducer 20T Reduction Gearbox Simple Mechanical DIY Module with 8 mm Shaft

uxcell 8mm to 8mm Bore Rigid Coupling Set Screw L22XD14 Stainless Steel,Shaft Coupler Connector for 3D Printers, Motor Accessories,2pcs

PGFUN 1:1 Right Angle Bevel Gearbox 1 Module 20 Teeth 90° Angle Drive Steering Gear Device Simple Mechanical DIY Module with 8mm Shaft