Abstract: A rail wheel has in one of its rim surfaces, preferably the inner one, a circumferential undercut groove. Vibration-damping elements are connected to the wheel by means of screws which either engage in the undercut groove via appropriately shaped heads, or are threaded into wedges lodged in the groove.

Abstract: A wheel of lightweight construction useful as a wheel for a railroad car having a hub portion and a rim portion. The hub portion is connected to the rim portion by a pair of spaced apart opposed concavely shaped wheel discs positioned back-to-back. Each of the wheel discs has a main portion running between the hub and the rim. The main portion has integral therewith at each end thereof an arcuately shaped transitional portion which terminates in an edge. One of these transitional portions contiguously abuts and is affixed to one of two oppositely inclined flanks of the hub. The other of the transitional portions contiguously abuts and is affixed to one of two oppositely inclined flanks of the rim.

Abstract: A wheel set for a bogie of a track vehicle in which wheels are mounted non-rotatably on an axle mounted in bearings of the bogie. Substantially wide rubber elastic inserts for springing each of the wheels, have an arched axial-radial cross-section. The height of the arch in radial direction is small relative to the width of the arch. The insert is arranged, furthermore, between the wheel hub and the wheel rim in the proximity of the hub boring and extending substantially over the entire width of the wheel hub. The apex of the arched insert faces the hub boring.

Abstract: A rubber shock-absorbent track wheel in which annular grooves are provided on the ring of the wheel and on the rim of the wheel disc. The grooves are formed between shoulders, and a clearance space is defined between the grooves and the shoulder. Prestressed rubber plates located within the clearance space have plane areas when in the original state. The two annular grooves are turned to one another so that the height of the clearance space varies over its width, and the height of the clearance space is maximum at the centers of the grooves. The rubber plates are more prestressed at their outer areas than in the middle areas of the rubber plates when positioned between the base of the annular grooves of wheel disc and ring.

Abstract: A rubber-suspended railway wheel having a highly-prestressed rubber insert embedded in facing annular grooves formed in the wheel rim and in the wheel tire and wherein, in order to restrict the extent of axial movement between the wheel tire and wheel rim, a shoulder of the annular groove of the wheel rim overlaps a shoulder of the annular groove of the wheel tire.

Abstract: A railway wheel of lightweight construction, having a disc-like wheel body and a tire which is tension-mounted on the wheel rim, and with the wheel disc including a tangential undulating or wavelike configuration of radially extending crests and troughs. In the railway wheel, between an inner annularly extending groove formed in the wheel tire and an outer annular groove formed in the wheel rim, there is provided a pre-tensioned or pre-stressed rubber insert, and in which the wheel disc has a radially unwaved conical basic configuration.