GUIDEROL GR Series Heavy Duty Narrow Unmounted Needle Roller Bearing, 2-1/4 in Dia Bore, 3 in OD, 2 Rows, 1-1/2 in W, 15250 lb Dynamic/49100 lb Static Load.
Core Bore Firestop System 3in in half inch increments. The UNIQUE Core Bore Seal Firestop System is a revolutionary way to firestop, water and smoke-seal abandoned empty core holes from 1. to 5. Example: If your hole is 3 5/8 you would choose the CBS-35 3 1/2.