X Four-Point Contact VB045XP0 Thin Section Ball Bearing 4 1/2" x 5 1/8 " x 5/16" inch ABEC-1 Quality X Four-Point Contact Thin Section Steel Open Ball Bearing VB045XP0 that has ABEC 1 quality, VB045XP0 bearing is a popular item that could be used in many applications, the dimensions are 4 1/2" x 5 1/8 " x 5/16", VB045XP0 bearing is Open, VB045XP0 bearing is Oil Preservative preserved.