igus Plain bearing 631444 - igus JSM-1618-20, Igus manufactures the JSM-1618-20 plain bearing with a bore diameter of 16 mm. This bearing boasts durability and is designed for low-friction performance. It is typically used in applications requiring smooth linear motion, such as in machinery or automotive components. igus JSM-1618-20 Plain Bearing 16mm Low Friction Wear Resistant Stable