QLL type ball couplingDetailed product description：

The QLL type ball coupling is composed of a half coupling 1 with a cylindrical inner surface and a semi-circular longitudinal groove, a ball 2, and a half coupling 3 with a drum shaped outer surface and a semi-circular longitudinal groove. The structure is very simple. Transmission process: Torque is transmitted from half coupling 1 (active end) to half coupling 3 (passive end) through ball 2. Due to the axial movement of the ball in the groove, the outer surface of half coupling 3 is a drum shaped half coupling, and there is a certain gap between the ball grooves of the two halves of the coupling. Therefore, the ball coupling has a small amount of axial, radial, and angular compensation. The structure of the ball coupling is simple, easy to manufacture, low cost, easy to assemble and disassemble, small external dimensions, and large torque transmission, but it does not have vibration damping and buffering functions.