This is a plummer block housing designed to carry two bearing seats on a common shaft, with a bore diameter (d) of 75 mm and outer bore diameter (da) of 85 mm. The housing, cap, and grease flinger disc are made of grey cast iron GG 20. Mounting dimensions read from the catalogue drawing include A = 590 mm, D = 180 mm, H = 112 mm, J = 290 mm, L = 350 mm, N = 19 mm, b = 80 mm, w = 85.0 mm, A1 = 486.0 mm, A2 = 422.5 mm, A3 = 610 mm, H1 = 225 mm, H2 = 30 mm, J1 = 440 mm, L1 = 890 mm, L2 = 559 mm. Both bearing positions are equipped with grease nipples, allowing relubrication without disassembly of the housing. The unit is supplied with seals fitted at both bearing seats, which limits ingress of contamination into the bearing positions. The design with two seats on one shaft corresponds to the catalogue's primary application for fan assemblies. Mounting hole spacing and housing height should be verified against the drawing dimensions above before installation.