SL045010 Cylindrical Roller Bearing 50×80×40mm Double Row for Rope Sheave and Winch Product Overview SL045010 is double row full complement cylindrical roller bearing, also equivalent to NNF5010. It is a locating bearing with outer ring central rib and double-side lip seals, pre-filled with grease. It delivers extremely high radial load capacity and can bear bidirectional moderate axial loads. The outer ring has snap ring groove for easy axial positioning, widely used for