LFR50/5-6 LFR50/5-6KDD LFR50/5-6-2Z locating bearing track rollers with Gothic arch groove. 

 There are two contact points between the roller and track, so the contact function is favorable.
 Rollers feature double row angular contact ball bearing in its internal structure design and a thick-walled outer ring, so rollers can accommodate higher loads.
 Rollers are made of high-quality bearing steel, processed by heat treatment and precision grind, and are filled with a long service life, high-grade and multi-purposes grease. Rollers mount the metal shield (KDD/2Z) or rubble seal (NPP/2RS) to prevent the dust. Some types of the rollers can be made from the corrosion resistance stainless steel 440C.