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Square Flange Type Linear Bearing LMK...L Series
Square Flange Type Linear Bearing LMK...L Series

Square Flange Type Linear Bearing LMK...L Series


The LMK...L series is a lengthen type on the basis of standard type, so the outer cylinder of slide bush contains two standard ball retainers that is perfectly designed to control the circulation of ball elements, resulting in smooth linear motion. The linear bush uses a round shaft for the guiding axis and helps to save space, which allows for compact designs.

Because of its metric dimensions, the square flange linear bearing LMK...LUU is extensively used in Asian markets, such as Japan, Korea, and Singapore, etc. For this model, the nut is integrated with a flange. This enables the bearings to be directly mounted onto the housing with bolts, thus achieving easy installation.

Our linear bearing is available in standard and anti-corrosion types. Available options include steel retainer suitable for using in harsh environments, while resin retainer for low acoustic, low-cost requirement. Other options can be specified according to the application requirements.

Linear bearings are used widely in electronic equipment, pull tester, digital three-dimensional coordinate measuring device, multi-axis machine tools, CNC, press tool, tie rod end assemblies, printing machines, packaging machines, engraving machines, grinder, automatic gas cutting machine, printer, automotive cables, food packaging machine and other industrial machinery sliding components.




Bearing Model



Ball number

Dimensions(mm)


Basic Load Rating(kN)


Weight(kg)

Inscribed circle Outer Diameter Length Flange Hole for Attachment Flange verticality (MAX.)
dr Tolerance D Tolerance L Tolerance D1 K H Φ d1 d2 h Dyn.C Stat.Co
LMK6LUU 4 6 0 -0.010 12 0 -0.013 35 0 -0.30 28 22 5 20 3.5 6 3.1 0.015 0.015 33 54 0.025
LMK8LUU 4 8 0 -0.010 15 0 -0.013 45 0 -0.30 32 25 5 24 3.5 6 3.1 0.015 0.015 44 80 0.043
LMK10LUU 4 10 0 -0.010 19 0 -0.016 55 0 -0.30 40 30 6 29 4.5 7.5 4.1 0.015 0.015 60 112 0.078
LMK12LUU 4 12 0 -0.010 21 0 -0.016 57 0 -0.30 42 32 6 32 4.5 7.5 4.1 0.015 0.015 83 160 0.09
LMK13LUU 4 13 0 -0.010 23 0 -0.016 61 0 -0.30 43 34 6 33 4.5 7.5 4.1 0.015 0.015 83 160 0.108
LMK16LUU 5 16 0 -0.010 28 0 -0.016 70 0 -0.30 48 37 6 38 4.5 7.5 4.1 0.015 0.015 126 240 0.165
LMK20LUU 5 20 0 -0.012 32 0 -0.019 80 0 -0.30 54 42 8 43 5.5 9 5.1 0.02 0.02 143 280 0.225
LMK25LUU 6 25 0 -0.012 40 0 -0.019 112 0 -0.40 62 50 8 51 5.5 9 5.1 0.02 0.02 159 320 0.5
LMK30LUU 6 30 0 -0.012 45 0 -0.019 123 0 -0.40 74 58 10 60 6.6 11 6.1 0.02 0.02 254 560 0.59
LMK35LUU 6 35 0 -0.015 52 0 -0.022 135 0 -0.40 82 64 10 67 6.6 11 6.1 0.025 0.025 270 640 0.93
LMK40LUU 6 40 0 -0.015 60 0 -0.022 151 (154) 0 -0.40 96 75 13 78 9 14 8.1 0.025 0.025 350 820 1.38
LMK50LUU 6 50 0 -0.015 80 0 -0.022 192 0 -0.40 116 92 13 98 9 14 8.1 0.025 0.025 620 1622 3.4
LMK60LUU 6 60 0 -0.020 90 0 -0.025 209 0 -0.40 134 106 18 112 11 17.5 10.8 0.025 0.025 770 2040 4.06

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