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Round Flange Linear Bearing LMF Series
Round Flange Linear Bearing LMF Series


Round Flange Linear Bearing LMF Series



We provide LMFUU series Round Flange Linear Ball Bearing with seals on both sides to prevent ingress of dirt, water and foreign matter.

Linear Motion Bearing (also called Ball Bushing or Shaft Guiding) is a rolling friction supporting element that usually used for linear motion mechanical parts with small friction. Coordinate with Linear Motion Shaft, recirculating balls provide unlimited stroke at low friction movement, permit temperature within 80 degree Celsius. It is great for 3D printer, CNC, and other applications.

LMF circular flange linear bearings, also known as LMF circular flange linear ball bearings or LMF circular flange linear bushing bearings. LM is the code name for the Asian standard series in linear bearings, and F is the meaning of circular flanges. This model is popular among Asian markets using metric units in Japan, Korea, Singapore, etc.

The material of the bushing and steel ball for LMF circular flange type linear bearing is high quality bearing steel. The ball retainer is made of metal steel, stainless steel or POM material, and the buckle, usually represented by U or P, is composed of NBR material. The ball retainer is mounted inside the bushing with the steel ball and sealed with a retaining ring from one side or both sides of the bushing.

The LMF linear bearings are suitable for kinds of electronic equipment, guide bar, drive shaft, pillar, semiconductor manufacturing equipment, printed circuit board IC assembly equipment, robotic arm, precision measurement equipment, office automation equipment, and other large-scale linear slide devices.




Bearing Model



Ball number

Dimensions(mm)


Basic Load Rating(kN)


Weight(kg)

Inscribed circle Outer Diameter Length Flange Hole for Attachment Flange verticality
dr Tolerance D Tolerance L Tolerance D1 H Φ d1 d2 h (MAX.) Dyn.C Stat.Co
LMF6UU 4 6 0 -0.009 12 0 -0.011 19 0 -0.20 28 5 20 3.5 6 3.1 0.012 0.012 21 27 0.024
LMF8SUU 4 8 0 -0.009 15 0 -0.011 17 0 -0.20 32 5 24 3.5 6 3.1 0.012 0.012 18 22 0.032
LMF8UU 4 8 0 -0.009 15 0 -0.011 24 0 -0.20 32 5 24 3.5 6 3.1 0.012 0.012 28 40 0.037
LMF10UU 4 10 0 -0.009 19 0 -0.013 29 0 -0.20 40 6 29 4.5 7.5 4.1 0.012 0.012 38 56 0.072
LMF12UU 4 12 0 -0.009 21 0 -0.013 30 0 -0.20 42 6 32 4.5 7.5 4.1 0.012 0.012 52 80 0.076
LMF13UU 4 13 0 -0.009 23 0 -0.013 32 0 -0.20 43 6 33 4.5 7.5 4.1 0.012 0.012 52 80 0.088
LMF16UU 5 16 0 -0.009 28 0 -0.013 37 0 -0.20 48 6 38 4.5 7.5 4.1 0.012 0.012 79 120 0.12
LMF20UU 5 20 0 -0.010 32 0 -0.016 42 0 -0.20 54 8 43 5.5 9 5.1 0.015 0.015 90 140 0.18
LMF25UU 6 25 0 -0.010 40 0 -0.016 59 0 -0.30 62 8 51 5.5 9 5.1 0.015 0.015 100 160 0.34
LMF30UU 6 30 0 -0.010 45 0 -0.016 64 0 -0.30 74 10 60 6.6 11 6.1 0.015 0.015 160 280 0.47
LMF35UU 6 35 0 -0.012 52 0 -0.019 70 0 -0.30 82 10 67 6.6 11 6.1 0.02 0.02 170 320 0.65
LMF40UU 6 40 0 -0.012 60 0 -0.019 80 0 -0.30 96 13 78 9 14 8.1 0.02 0.02 220 410 1.06
LMF50UU 6 50 0 -0.012 80 0 -0.019 100 0 -0.30 116 13 98 9 14 8.1 0.02 0.02 390 810 2.2
LMF60UU 6 60 0 -0.015 90 0 -0.022 110 0 -0.30 134 18 112 11 17.5 10.8 0.025 0.025 480 1020 3
LMF80UU 6 80 0 -0.015 120 0 -0.022 140 0 -0.40 164 18 142 11 17.5 10.8 0.025 0.025 735 1600 5.8
LMF100UU 6 100 0 -0.020 150 0 -0.029 175 0 -0.30 200 20 175 14 20 13.1 0.03 0.03 1410 3481 10.6

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