An HJ320 E (or HJ320EC/VA301) angle ring is a specialized L-shaped thrust collar used with cylindrical roller bearings (such as NU or NJ series) to locate the shaft axially. It features a 100 mm bore, 139 mm outside diameter, and 20.5 mm width.
These precision-ground steel rings help secure heavy radial loads and allow your cylindrical bearing to locate the shaft axially in one or both directions