5M7934 Special Roller Bearing Iinner Race for Caterpillar Parts 5M-79345M7934 Special Roller Bearing Iinner Race VXB Bearing A Special Roller Bearing Inner Race refers to a customized or unique design of the inner race of a roller bearing. The inner race is the ring shaped component that holds the rolling elements (such as rollers or balls) in place and allows for their rotational movement within the bearing assembly. 5M7934 Quantity: One Outer Race Brand: VXB Bearing