• LFR Series
  • LFR Series


Track Roller with Gothic arch Groove —LFR Series


Series LFR rollers are the most widely-use and economy product among the linear motion track rollers,and they can suit to the cylindrical track.


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 chrome steel,processed by heat treatment and precision grind,and are filled with a long service life,high-grade and multi-purposes grease.Rollers mount themetal shield (KDD)or rubble seal (NPP)to prevent the dust."Motion Bearings"also can providethe rollers with concentric or eccentric pivot.Some types of the rollers can be made from thecorrosion resistance stainless steel.


Characteristics of the guide system that series LFR rollers are applied:


1.High allowable speed,low resistance,long service life


For series LFR rollers,the surface profile of the outer ring is designed as the GOTHIC ARCH.Whenrollers running,there are two contact points with an angle 60 degrees between the roller and track.Sothe friction resistance is low and the load is in equality,thus avoiding the stresses concentration andedge effect caused by the error from installation and manufacture,making the track system has thecharacteristics of high speed,low energy consumption,long service life and minimum noise level.


2.Easy installation


As rollers assembled the concentric or eccentric pivot,installation can be made convenient.To adjustthe eccentric one's eccentricity,these rollers can get the fitting preload.


wählenAnfrageTeile-Nr.Abmessung(mm)Tragzahl Gewicht (g)
dwDDCBEINrsCw(KN)Kuh (KN)Frperm(KN)
LFR50/5-4NPP 4 5 16 7 8 9 0.2 1.2 0.86 1.3 7.5
LFR50/5-4KDD 4 5 16 7 8 9 0.2 1.2 0.86 1.3 7.5
LFR50/4NPP 5 4 13 6 7 8.04 0.2 1.05 0.85 1.15 3.5
LFR50/8NPP 6 8 24 11 11 14 0.3 3.67 2.28 1.3 24
LFR50/8KDD 6 8 24 11 11 14 0.3 3.67 2.28 1.3 24
LFR50/5NPP 6 5 17 7 8 10.5 0.2 1.27 0.82 1.3 8
LFR50/5KDD 6 5 17 7 8 10.5 0.2 1.27 0.82 1.3 8
LFR50/8-8NPP 8 8 24 11 11 14.75 0.3 3.67 2.28 1.3 24
LFR50/8-8KDD 8 8 24 11 11 14.75 0.3 3.67 2.28 1.3 24
LFR5201-10.4NPP 10 12 39.9 18 20 22 0.3 8.9 5 6.7 115
LFR5302NPP 10 15 47 19 19 26.65 1 16.2 9.2 6.2 163
LFR5302KDD 10 15 47 19 19 26.65 1 16.2 9.2 6.2 163
LFR5301NPP 10 12 42 19 19 24 0.6 13 7.7 7.5 130
LFR5301KDD 10 12 42 19 19 24 0.6 13 7.7 7.5 130
LFR5201NPP 10 12 35 15.9 15.9 20.65 0.3 8.5 5.1 5.1 68
LFR5201KDD 10 12 35 15.9 15.9 20.65 0.3 8.5 5.1 5.1 68
LFR30/8NPP 10 8 26.8 11 13 16.7 0.3 3.67 2.28 1.3 31
LFR30/8KDD 10 8 26.8 11 13 16.7 0.3 3.67 2.28 1.3 31
LFR5201-12NPP 12 12 35 15.9 15.9 21.75 0.3 8.4 5 5.1 68
LFR5201-12KDD 12 12 35 15.9 15.9 21.75 0.3 8.4 5 5.1 68
LFR5201-14NPP 14 12 39.9 18 20 24 0.3 8.9 5 6.7 107
LFR5201-14KDD 14 12 39.9 18 20 24 0.3 8.9 5 6.7 107
LFR5204-16NPP 16 20 52 20.6 22.6 31.5 0.6 16.8 9.5 12.1 195
LFR5204-16KDD 16 20 52 20.6 22.6 31.5 0.6 16.8 9.5 12.1 195
LFR5206-20NPP 20 25 72 23.8 25.8 41 0.6 29.5 16.6 20.7 435
LFR5206-20KDD 20 25 72 23.8 25.8 41 0.6 29.5 16.6 20.7 435
LFR5301-20NPP 20 12 42 19 19 28 0.6 13 7.7 7.5 125
LFR5301-20KDD 20 12 42 19 19 28 0.6 13 7.7 7.5 125
LFR5206-25NPP 25 25 72 23.8 25.8 43.5 0.6 29.5 16.4 23.1 425
LFR5206-25KDD 25 25 72 23.8 25.8 43.5 0.6 29.5 16.4 23.1 425
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