This is a two-bearing housing unit designed to carry both bearing positions on a single shaft, with a bore diameter d of 24 mm. The housing, cap and grease-guiding disc are made of grey cast iron GG 20. Mounting dimensions can be read from the catalogue drawing: A = 226 mm, D = 72 mm, H = 50 mm, J = 130 mm, L = 160 mm, N = 15 mm, b = 40 mm, w = 45.0 mm, A1 = 171.5 mm, A2 = 140.0 mm, A3 = 240 mm, H1 = 100 mm, H2 = 18 mm, J1 = 150 mm, L1 = 340 mm, L2 = 210 mm, da = 30 mm. Both bearing positions are fitted with grease nipples. The unit is supplied complete with seals at both bearing positions, which keeps contaminants out of the bearing seating area and retains grease at each position. The design places both bearing seats on one shaft line, as required for fan-type assemblies referenced in the manufacturer catalogue. Regreasing is done through the nipples at each bearing position; dimension H1 and the A-series dimensions from the drawing should be checked against the mounting layout before installation.