To provide safe operation of equipment, freewheeling couplings are used, which transmit or fix torque in one direction and allow idle running in the opposite direction. The most frequently such couplings find application in inclined conveyors, escalators, winches, printing machines and printers, sewing and packing equipment. An innovative solution is provided by the type of freewheeling couplings, where blocking of inner and outer ring is carried out due to wedge action of the cams. The couplings of this type are characterized by high carrying capacity by torque, noiseless operation, simplicity in maintenance, durable service life and compactness.