This is a split plummer block housing unit designed to carry a shaft supported by two bearing positions on a single common shaft line. The housing, cover and grease deflector are made of grey cast iron GG 20. The bore diameter (d) is 42 mm. Overall dimensions taken from the catalogue drawing are: A = 377 mm, D = 110 mm, H = 70 mm, J = 170 mm, L = 210 mm, N = 15 mm, b = 60 mm, w = 59.0 mm, A1 = 311.5 mm, A2 = 266.0 mm, A3 = 393 mm, H1 = 142 mm, H2 = 25 mm, J1 = 275 mm, L1 = 613 mm, L2 = 360 mm, da = 50 mm. Both bearing positions are fitted with grease nipples, allowing relubrication without dismantling the housing. The unit is supplied complete with seals, giving protection at both bearing seats against contamination during operation. The two-seat, single-shaft-line layout keeps both bearing positions in fixed alignment to one another, which simplifies mounting when a shaft has to run through a common housing body.