Floating Double Roller Pillow Block Bearing F-DPB-20-OPN-TG for 1.25" Shaft DiameterFloating Double Roller Pillow Block Bearing (DPB 20) with a lubrication port, for a 1. 25" Diameter Shaft. Features an open bearing style and two sets of 3 opposing roller bearings while maintaining the standard size profile of a Single Roller Pillow Block (SPB). 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 this floating