This is a two-bearing housing unit designed to support a shaft in a single bore of d = 55 mm, with the bore diameter da = 65 mm on the seating side. The housing, cover and grease-guiding disc are made of grey cast iron GG 20. Mounting dimensions can be read from the catalogue drawing: A = 492 mm, D = 140 mm, H = 95 mm, J = 230 mm, L = 280 mm, N = 19 mm, b = 70 mm, w = 74.0 mm, A1 = 402.5 mm, A2 = 349.0 mm, A3 = 508 mm, H1 = 185 mm, H2 = 25 mm, J1 = 360 mm, L1 = 728 mm, L2 = 470 mm. Both bearing positions are fitted with grease nipples, and the unit is supplied complete with seals, allowing relubrication and sealing against contamination without disassembling the housing. The two-seat, single-shaft construction is intended for fan assemblies, keeping both bearing positions aligned on one common base and simplifying shaft support along its length.