Linear Ball Bearing IP32G 2.00" ClosedLinear ball bearing, closed, with a 2" inner diameter (ID). Its ball bearing design provides high speed linear motion with a low coefficient of friction and offers an advantage in cantilevered applications where plain bearings may be limited by the 2: 1 binding rule. The heat treated alloy steel shell provides durability, the balls deliver speed, and the polymer resin retainer guides ball movement while reducing noise. Includes double seals.