ITEM NAME:SCS16UU 16mm Linear Motion Bearings Smooth Bearing CNC B7V2 SCS16UU 16mm Linear Motion Bearings Smooth Bearing CNC B7V2 SC16UU Ball Bearing Shaft ID: 16mm Shaft OD:28mm Color: As shown Material: Bearing Steel Quantity: 1pc Weight: 201g Included: 1 x SC16UU Ball Bearing Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm..Shaft ID: 16mm. SC16UU Ball Bearing. Material: Bearing Steel. 1 x SC16UU Ball Bearing. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing.