Specialzied in researching and producing double row angular contact ball bearing
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Rail Roller Double Row Angular Contact Ball Bearing (LFR Series)

Rail Roller Double Row Angular Contact Ball Bearing (LFR Series)
  • Rail Roller Double Row Angular Contact Ball Bearing (LFR Series)

Rail Roller Double Row Angular Contact Ball Bearing (LFR Series)


Application: Compared with single row bearings, double row angular contact ball bearings have better rigidity and can withstand overturning moments. The bearings are non-separable. Especially suitable for applications with high rigidity requirements. Widely used in the front wheel hubs of cars (some models also use double-row tapered roller bearings of the same size).


Features: The tiltability between the inner and outer rings of double row angular contact ball bearings is limited. The allowable tilt angle depends on the internal clearance of the bearing, the bearing size, the internal design and the forces and moments acting on the bearing, and the maximum allowable tilt angle. It should be ensured that no excessive additional stress is generated in the bearing.


If there is a tilt angle between the inner and outer rings of the bearing, it will affect the life of the bearing, and at the same time, the bearing running accuracy will decrease and the running noise will increase. 


Double row angular contact ball bearings typically use a nylon cage or a brass solid cage. When installing double row angular contact ball bearings, it should be noted that although the bearing can bear the bidirectional axial load, if there is a ball gap on one side, care should be taken not to let the main axial load pass through the notched side groove. When using the bearing, care should be taken to bear the main load on the side raceway without the ball gap.


Double row angular contact ball bearings are capable of withstanding large radial and axial bidirectional combined loads and moment loads, mainly radial loads, which limit the axial displacement of the shaft or casing in both directions with a contact angle of 30 degrees.


In addition, double row angular contact ball bearings also have good rigidity and can withstand overturning moments. The bearings are non-separable. Especially suitable for applications with high rigidity requirements. Widely used in the front wheel hub of a car.


selectInquiryBearing No.GERMAN ITALIANdwdDCBArsCW(KN)COW(KN)Mass(KG)
LFR5200-8KDD 8 10 32 14.3 14.3 18.45 0.6 7.14 3.9
LFR5300-15KDD 15 10 35 19 19 22.5 0.6 10.5 5.8
LFR 5301-20 NPP 20 12 42 19 19 28 0.6 13 7.7 0.125
LFR 5201-12 KDD LFR5201-12KDD R 5201-12 ZZ 12 12 35 15.9 15.9 21.75 0.3 8.4 5 0.068
LFR 5201-12 NPP LFR5201-12NPP R 5201-122RS 12 12 35 15.9 15.9 21.75 0.3 8.4 5 0.068
LFR 5201-14 KDD LFR5201-14KDD R 5201-14 ZZ 14 12 39.9 18 20 24 0.3 8.9 5 0.107
LFR 5201-14 NPP LFR5201-14NPP R 5201-142RS 14 12 39.9 18 20 24 0.3 8.9 5 0.107
LFR 5201-10.40 KDD 10 12 39.9 18 20 22 0.3 8.9 5 0.115
LFR 5201 KDD LFR5201KDD R 5201-10ZZ 10 12 35 15.9 15.9 20.65 0.3 8.5 5.1 0.068
LFR 5301 KDD LFR5301KDD R 5301-10ZZ 10 12 42 19 19 24 0.6 13 7.7 0.13
LFR 5302 KDD LFR5302KDD R 5302-10 ZZ 10 15 47 19 19 26.65 1 16.2 9.2 0.163
LFR 5302 NPP LFR5302NPP R 5302-102RS 10 15 47 19 19 26.65 1 16.2 9.2 0.163
LFR5304-30KDD 30 20 62 22.2 22.2 42.5 1.1 19.6 12.7
LFR5304-32KDD 32 20 62 21 23 42 1.1 19.6 12.7
LFR 5204-16 KDD* LFR5204-16KDD R 5204-16 ZZ 16 20 52 20.6 22.6 31.5 0.6 16.8 9.5 0.195
LFR 5204-16 NPP* LFR5204-16NPP R 5204-162RS 16 20 52 20.6 22.6 31.5 0.6 16.8 9.5 0.195
LFR 5206-20 KDD* LFR5206-20KDD R 5206-20 ZZ 20 25 72 23.8 25.8 41 0.6 29.5 16.6 0.435
LFR 5206-20 NPP* LFR5206-20NPP R 5206-202RS 20 25 72 23.8 25.8 41 0.6 29.5 16.6 0.435
LFR 5206-25 KDD* LFR5206-25KDD R 5206-25 ZZ 25 25 72 23.8 25.8 43.5 0.6 29.2 16.4 0.425
LFR 5206-25 NPP* LFR5206-25NPP R 5206-252RS 25 25 72 23.8 25.8 43.5 0.6 29.2 16.4 0.425
LFR 5207-30 KDD* LFR5207-30KDD R 5207-30 ZZ 30 30 80 27 29 51 1 38 20.8 0.66
LFR 5207-30 NPP* LFR5207-30NPP R 5207-302RS 30 30 80 27 29 51 1 38 20.8 0.66
LFR 5208-40 KDD* LFR5208-40KDD R 5208-40 ZZ 40 40 98 36 38 62.5 1 54.8 29 1.36
LFR 5208-40 NPP* LFR5208-40NPP R 5208-402RS 40 40 98 36 38 62.5 1 54.8 29 1.36
LFR 5308-50 KDD* LFR5308-50KDD R 5308-50 ZZ 50 40 110 44 46 72.5 1.1 53 39.5 1.4
LFR 5308-50 NPP* LFR5308-50NPP R 5308-502RS 50 40 110 44 46 72.5 1.1 53 39.5 1.4