This range of bearing is available in an infinite range of bores to suit any shaft size from 50mm to 100mm (2" to 4"). The unit is fully split with the housing made of cast iron and the split bush gunmetal. The gunmetal bearings are 1 1/2 diameters through (i.e.: - A bush for a 2" shaft is 3" long.) The bearing shells are available from stock.