This bearing unit carries a shaft through two bearing seats mounted on a single split housing, with bore diameter d = 48 mm. The housing, cover and grease-guiding disc are made of grey cast iron GG 20. Housing dimensions can be read from the catalogue drawing: A = 422 mm, D = 120 mm, H = 80 mm, J = 210 mm, L = 260 mm, N = 19 mm, b = 60 mm, w = 69.0 mm, A1 = 335.5 mm, A2 = 288.0 mm, A3 = 438 mm, H1 = 158 mm, H2 = 25 mm, J1 = 300 mm, L1 = 658 mm, L2 = 400 mm, da = 55 mm. Both bearing positions are fitted with grease nipples, allowing regreasing without dismantling the housing, and the unit is supplied with seals fitted at both bearing seats. The two-seat, single-shaft layout of the PDNI series keeps both bearing positions aligned on one housing body, which is relevant when setting up a shaft run supported at two points within one frame. The PDNI KPL designation covers the complete assembly with cover and grease-guiding disc as delivered.