Rotary 8668. ROLLER CAGE BEARING WITH RETAINER BUSHINGS ONLY. ROLLER CAGE BEARING ID 25/32"(19.84MM), OD 1-11/32" (34.13MM) , LENGTH 2-45/64" (68.66MM). RETAINER BUSHINGS ID 49/64" (19.45MM), OD 1-25/64" (35.32MM), HEIGHT 3/8" (9.53MM).