TORSIONAL COUPLINGS LM TORSIONAL COUPLING TYPES 35 1) Type SB sizes 240 to 2400 The driven inner hub consists of two pieces; the vulcanized steel ring and the inner tapered hub. These two parts are bolted together and the torque is transmitted by the friction force created by the axial bolts, drawing the tapered hub into a mating taper in the element. This is a long tapered fit, but it can be disassembled if the coupling has to be removed. The vulcanized steel ring creates a very high inward pressure acting on the inner driven tapered hub. To utilize this pressure, the driven hub is slotted in an axial direction. This compresses the driven hub to provide a very strong backlash free connection between the driven hub and driven shaft. This clamping effect can be used equally well on cyl indrical shafts with keys or spl ined shafts. 2) Type SC sizes 2800 to 3500 The inner ring made of spheroidal cast iron is vulcanised into the elstomeric element. This flange is bolted to the inner tapered hub. Depending upon the arrangement of the elastomeric element, two different lengths are possible utilizing the same components. 3) Types SBE and SCE special radial assembly/disassembly types (drop-out types) all sizes The elastomeric element can be changed quickly and easily without disturbing the coupling shaft, provided the flywheel housing does not protrude too far. These versions can be particularly advantageous on larger sizes, especially if the hub is interference fit. #DriveLineHarmony www.jbj.co.uk/torsional-couplings.html
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