Abstract: A mounting device for anchoring a machine element coaxially on a rotary shaft. The device fits between the interior cylindrical bore of the machine element and the internal cylindrical surface of the shaft and is effective to position the element at any desired position longitudinally of the shaft and at any angular position circumferentially of the shaft. The device has first and second segmented sleeves. The second sleeve has separate internal and external parts so as to afford expansion and contraction of the external part by wedging the internal part of the second sleeve between the external part and the first sleeve, allowing the device to clamp the element on the shaft at any desired position during tightening.

Abstract: A method of mounting a machine element on a shaft by means of a device which fits between the interior cylindrical bore of the machine element and the outer surface of the shaft. The device has a sleeve formed of three separable segments, the inner surface of the sleeve being tapered and the outer surface being substantially cylindrical about the axis of the bore of the machine element. In accordance with the invention the surface of the shaft is machined so as to be tapered with a taper corresponding to the taper on the interior surface of the sleeve whereby the sleeve and the tapered portion of the shaft mate. At one side of the tapered portion the shaft is of greater diameter than the largest interior diameter of the sleeve and on the other side the shaft is of a diameter smaller than the smallest interior diameter of the sleeve. Adjacent the tapered portion the smaller diameter part of the shaft is threaded.

Abstract: A mounting device (21,22,23) for anchoring a machine element (11) coaxially on a rotarty shaft (12). The device fits between the machine element and the shaft and is effective to position the element at any desired position longitudinally of the shaft and at any angular position circumferentially of the shaft. The device has similarly tapered inner (21) and outer (22) segmented sleeves, so that relative axial displacement of the sleeves effects radial expansion and contraction of the combined elements. At one end (29) the inner sleeve cooperates with a nut (23) to effect the axial displacement of the sleeves. The outer sleeve has separate segments (36) coupled with said nut to permit limited pivotal movement of the segments. In another embodiment (FIG. 6), the sleeves (121,122) are constructed to avoid relative rotation between the sleeves by a locking portion (146). In a third embodiment (FIG.

Abstract: A mounting device for anchoring a machine element coaxially on a rotary shaft. The device fits between the interior cylindrical bore of the machine element and the internal cylindrical surface of the shaft and is effective to position the element at any desired position longitudinally of the shaft and at any angular position circumferentially of the shaft. The device has inner and outer segmented sleeves, the mating surfaces of which are similarly tapered so that relative axial displacement of the sleeves effects expansion and contraction of the interior bore and external surface of the combined elements. At one end the inner sleeve is externally threaded to cooperate with an internally threaded nut, such that rotation of the nut on the threaded portion of the inner sleeve effects the relative axial displacement of the segmented inner and outer sleeves.