Fishing Reel Bearing Kits to suit Shimano Calcutta (CT) Series of Baitcaster Fishing Reels. • Very low heat expansion, less expansion and contraction between heating and cooling. Ceramic Bearings can run faster than all steel bearings due to the lower centrifugal force generated by the ceramic balls, the speed increase for Ceramic Bearings is 30 - 40% with adequate lubrication.