This is a standard, "lubable", 1 1/4" inner diameter, 2 7/8" (larger) outer race diameter, high performance sealed steel bearing. It includes two set screws. "Lubable" refers to the larger OD of these bearings versus the standard small bearing. Bearings no longer offer oil hole. This is the standard size for ICON/Seraph/Triton chassis' and all Champion's Edition Nemesis/Phenom chassis'.
