This unit carries a shaft through two bearing seats housed in a single split cast-iron body, series PDNI, bore diameter d = 38 mm. The housing, cover, and grease-guiding disc are made of grey cast iron GG 20. Overall footprint dimensions read from the drawing are A = 360 mm, A1 = 279.5 mm, A2 = 236 mm, A3 = 376 mm, D = 100 mm, H = 70 mm, H1 = 137 mm, H2 = 22 mm, J = 170 mm, J1 = 250 mm, L = 210 mm, L1 = 536 mm, L2 = 340 mm, N = 15 mm, b = 52 mm, w = 63.0 mm, da = 45 mm — for exact hole spacing and mounting geometry, refer to the catalogue drawing. Both bearing positions are equipped with grease nipples, allowing relubrication without dismantling the housing, and the unit is supplied complete with seals fitted at both seats, which limits ingress of dust and moisture along the shaft. The two-seat arrangement on a common shaft, as indicated in the manufacturer's catalogue, is intended primarily for fan-shaft assemblies, holding both bearing positions in fixed axial alignment relative to one another.