Product DescriptionThe iron plated universal joint can be bent at any attitude (rotation perspective forty five degrees), and the common joint can replace the transmission path at any angle. Originally, a motor shaft faces south, and the route of the rotating shaft would be changed to stand the floor through common joint connection. It can isolate or absorb axial vibration and impact, and has the plain benefits of enormous torque, small transmission inertia, vast adjustment angle, convenient installation, vast software range, long carrier life, etc. It is appropriate for different occasions of general machinery.The following 3 sizes: outer diameter: 12mm, length: 52mm6-6: Aperture of one finish is 6mm, and that of the alternative end is 6mm; (M3 machine screw is used for aspect hole)5-5: Aperture of one end is 5mm, and that of the alternative finish is 5mm; (M3 machine screw is used for side hole)4-4: Aperture of 1 end is 4mm, and that of the opposite finish is 4mm; (M3 machine screw is used for aspect hole)The following two sizes: length: 58mm, outer diameter of eight * 8 is 14mm, and outer diameter of 10 * 10 is 16mm8-8: Aperture of 1 end is 8mm, and that of the opposite end is 8mm; (M4 machine screw is used for facet hole)10-10: one side gap diameter is 10mm, the alternative aspect gap diameter is 10mm; (M4 mechanical device screw is used for aspect hole)Packing instructions:According on your choice!