Abstract: A universal coupling or joint is disclosed. The coupling comprises a hollow elongate casing having spherical sockets adjacent each end thereof, and a driving shaft having a spherical ball provided at one end positioned within one spherical socket, and a driven shaft having a spherical ball provided at one end positioned within the other spherical socket, and a torque transmitting member extending between the said spherical balls and in direct rotational engagement therewith. The coupling of the invention minimizes entry of abrasive grit and dirt into the bearing surfaces thus enabling long life and durability, and the provision of the outer casing which is not directly driven by the driven members of the unit provides a safety factor not before possible.