Double Roller Pillow Block MDPB-25-OPN for a 25mm ShaftDouble Roller Bearing Pillow Block (MDPB 25) for a 25mm diameter shaft in an open bearing style with two sets of 3 opposing roller bearings while maintaining the standard size profile of a Single Roller Pillow Block (SPB); thus the term "Double." By contrast, a Twin Roller Pillow Block (TWN) also has two sets of 3 opposing roller bearings, but the TWN blocks are double sized as if they were two SPBs fused together. Use a floating "F" part number for