Shrink disc coupling RfN 4061

discshaftflange

Slit inner ring – low losses and pressure on the hub. Forged pressure rings with the highest stability for the best stress distribution, the highest security against breakage and thus ideal material use. Cost-efficient solution with high capacity in the largest possible range of applications. The preload force can be set targeted to the relevant application. The RINGFEDER® RfN 4061 series is the direct further development of the RINGFEDER® RfN 4071 series up to an internal diameter of 200 mm. Product Characteristics Shrink discs are the modern method for creating a mechanical shrink fit. The shrink disc consists of either one or two thrust rings with tapered bores and a mating tapered inner ring. By tightening locking screws the thrust rings are drawn together compressing the inner ring and applying pressure to the outside of the hub clamping it to the shaft. Being positioned around the hub there is only one interface transmitting the loads giving the shrink disc method distinct advantages such as offering the possibility of very concentric and well balanced connections that are suited to high speed applications. Traditional shrink fits require complicated calculations, close machining tolerances and fine surface finishes, they also need considerable effort with mounting and removal. The shrink disc connection has none of these disadvantages and is better than any of the other usual connection methods with regard to fatigue strength under alternating torsional stress. Unlimited range of applications – RINGFEDER® Shrink Disc connections are suitable for securing all types of hubs onto shafts and axles.