Attributes . 4 Bolt Pillow Block; 6-7/8" Bore; 9-1/2" Base to Center Height; Tapered Adapter Sleeve Mount; Spherical Roller Bearing; 24-3/4" Minimum Bolt Spacing; 27-7/8" Bolt Spacing Maximum; Relubricatable; Cast Iron; Triple Ring Labyrinth; Non-expansion . Names