Floating Double Roller Pillow Block Bearing F-DPB-12-OPN-S for 3/4" Shaft DiameterFloating Double Roller Pillow Block Bearing (DPB 12) with scrapers for a 3 4" Diameter Shaft, which has two sets of 3 opposing roller bearings while maintaining the standard size open bearing 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 twice the size as if they were two SPBs fused together. Use this floating