Floating Double Roller Pillow Block Bearing F-DPB-24-OPN-S for 1.5" Shaft DiameterFloating Double Roller Pillow Block Bearing (DPB 24) designed for a 1. 5" diameter shaft. Features copper scrapers on each end, an open bearing style, and two sets of three opposing roller bearings, all while maintaining the standard size profile of a Single Roller Pillow Block (SPB), hence the designation "Double." In contrast, the Twin Roller Pillow Block (TWN) also incorporates two sets of three opposing roller bearings but comes in a double size,