NA4911 Needle Roller Bearing 55x80x25mm - Machined TypeNA4911 Needle Roller Bearing One Bearing Machined type needle roller bearing NA4911, measures an inner diameter of 55mm, the outer diameter is 80mm, width of the cone (inner ring) is 25mm, and the outer ring width is 25mm. NA4911 Bearing Machined Needle Roller Bearing Dimensions: 55mm x 80mm x 25mm Metric ID (inner diameter) Bore: 55mm OD (outer diameter): 80mm Width: 25mm Size: 55 x 80 x 25 mm Quantity: 1 Complete Bearing Inner Cone Included Dynamic