This is a two-bearing housing unit designed for mounting on a single shaft, with a bore diameter d of 60 mm. The housing, cover and grease-guiding disc are made of grey cast iron GG 20. Both bearing positions are fitted with grease nipples, and the unit is supplied complete with seals. Overall dimensions read from the catalogue drawing include A = 512 mm, A1 = 420.5 mm, A2 = 365.0 mm, A3 = 532 mm, D = 150 mm, H = 95 mm, H1 = 190 mm, H2 = 25 mm, J = 230 mm, J1 = 380 mm, L = 290 mm, L1 = 812 mm, L2 = 490 mm, N = 19 mm, b = 70 mm, w = 76.0 mm, da = 70 mm. The two-seat design keeps both bearing positions aligned on one shaft, which is the layout the manufacturer's catalogue lists primarily for fan assemblies. The grease nipples at each bearing position allow relubrication without dismantling the housing, and the supplied seals protect both bearing seats from contamination during operation. The cast iron construction of the housing, cover and grease-guiding disc provides the structural body for the shaft-mounted bearing arrangement described in the catalogue.