As it is almost impossible to obtain cent percent alignment in any drive, it is essential that flexible couplings be used in all possible cases to sustain axial and radial misalignments. GREAVES cone ring flexible couplings are being manufactured to allow these features and transmit torque through pins of substantial dimension and rubber cone rings.
This construction and design while allowing larger torsional flexibility than conventional pinbushes remains simple in mounting and dismantling.