Two-bearing housings, PD series
SKF two-bearing housings were originally developed for fan shafts with an overhung impeller, but are also suitable for other applications with similar shaft arrangements.
Compared to the conventional shaft arrangement where two self-aligning bearings are mounted in separate plummer (pillow) block housings, two-bearing housings provide several advantages including improved running accuracy and quieter operation.
PD two-bearing housings can also be supplied as ready-to-mount units.
Single row deep groove ball bearings
Single row angular contact ball bearings
Single row cylindrical roller bearings
Bearing dimension series
NU 22, NU 3, NJ 22, NJ 23, NJ 2, NJ 3
Shaft diameter range
25 to 120 mm
Typical shaft-bearing combinations
On a stepped shaft with bearings on a cylindrical seat
Oil lubrication (optional)
Grey cast iron
Compliance to standards