This split plummer block houses two bearing seats on a common shaft line, with a bore diameter (d) of 48 mm sized to the mounted shaft. The housing, cap, and grease-guiding disc are cast from grey iron GG 20. Dimension D is 120 mm, H equals 80 mm, and the mounting layout follows J = 210 mm and L = 260 mm, with the outer profile reaching A = 422 mm and A3 = 438 mm; secondary dimensions H1 = 158 mm, H2 = 25 mm, J1 = 300 mm, L1 = 658 mm, L2 = 400 mm, A1 = 335.5 mm, A2 = 288.0 mm, N = 19 mm, b = 60 mm, w = 69.0 mm and da = 55 mm can be read from the catalogue drawing for fitting and clearance checks. Both bearing positions are fitted with grease nipples, allowing relubrication without dismantling the housing, and the unit is supplied with seals fitted to each bearing seat, protecting the raceways from contact contamination. Per the manufacturer's catalogue, the PDNI series is intended primarily for fan assemblies where two bearing seats share one shaft line within a single split housing.