LMBF LMBK Flanged Linear Bearing
LMBF LMBK Flanged Linear Ball Bearing is American Standard components engineered for secure, rigid mounting in linear motion systems. Available in both round and rectangular flange configurations, they provide versatile installation options to accommodate diverse mechanical designs and space constraints. Constructed with synthetic resin retainers, these bearings deliver smooth, low-friction travel, quiet operation, and reliable performance for demanding automation and industrial machinery applications across North American markets.
| Nominal Shaft Diameter (Inch/mm) |
Nominal Part No. | Major Dimensions (Inch/mm) | Eccentricity Inch/μm |
Squareness Inch/μm |
Basic Load Rating | ||||||||||||
| Standard Type |
Seal Type | Ball Circuit |
Weight g |
dr | D | L | Flange | Dynamic C(N) |
Static Co(N) |
||||||||
| Tolerance | Df | t | Dp | X | Y | Z | |||||||||||
| 1/4 |
LMBF4 |
LMBF4UU | 4 | 32 | .2500 | .5000 | .7500 | 1.2500 | 0.219 | .8750 | .1560 | .2500 | .1410 | .0005 | .0005 | 206 | 265 |
| 6.350 | 6.350 | 12.700 | 19.050 | 31.750 | 5.556 | 22.225 | 3.969 | 6.350 | 3.572 | 12 | 12 | ||||||
| 3/8 |
LMBF6 |
LMBF6UU | 4 | 47 | .3750 | .6250 | .8750 | 1.5000 | .2500 | 1.0620 | .1875 | .2970 | .1720 | .0005 | .0005 | 225 | 314 |
| 9.525 | 9.525 | 15.875 | 22.225 | 38.100 | 6.350 | 26.988 | 4.763 | 7.541 | 4.366 | 12 | 12 | ||||||
| 1/2 |
LMBF8 |
LMBF8UU | 4 | 88 | .5000 | .8750 | 1.2500 | 1.7500 | .2500 | 1.312 | .1875 | .2970 | .1720 | .0005 | .0005 | 510 | 784 |
| 12.700 | 12.700 | 22.225 | 31.750 | 44.450 | 6.350 | 33.338 | 4.763 | 7.541 | 4.366 | 12 | 12 | ||||||
| 5/8 |
LMBF10 |
LMBF10UU | 4 | 140 | .6250 | 1.1250 | 1.5000 | 2.0000 | .2500 | 1.5620 | .1875 | .2970 | .1720 | .0005 | .0005 | 774 | 1180 |
| 15.875 | 15.875 | 28.575 | 38.100 | 50.800 | 6.350 | 39.688 | 4.763 | 7.541 | 4.366 | 12 | 12 | ||||||
| 3/4 |
LMBF12 |
LMBF12UU | 5 | 190 | .7500 | 1.2500 | 1.6250 | 2.1875 | .3125 | 1.7180 | .2187 | .3440 | .2030 | .0006 | .0006 | 862 | 1370 |
| 19.050 | 19.050 | 31.750 | 41.275 | 55.563 | 7.938 | 43.660 | 5.556 | 8.731 | 5.159 | 15 | 15 | ||||||
| 1 |
LMBF16 |
LMBF16UU | 6 | 325 | 1.0000 | 1.5625 | 2.2500 | 2.2500 | .3125 | 2.0310 | .2187 | .3440 | .2030 | .0006 | .0006 | 980 | 1570 |
| 25.400 | 25.400 | 39.688 | 57.150 | 63.500 | 7.938 | 51.594 | 5.556 | 8.731 | 5.159 | 15 | 15 | ||||||
| 1-1/4 |
LMBF20 |
LMBF20UU | 6 | 665 | 1.2500 | 2.0000 | 2.6250 | 3.1250 | .3750 | 2.5625 | .2812 | .4060 | .2656 | .0008 | .0008 | 1570 | 2740 |
| 31.750 | 31.750 | 50.800 | 66.675 | 79.375 | 9.525 | 65.088 | 7.144 | 10.319 | 6.747 | 20 | 20 | ||||||
| 1-1/2 |
LMBF24 |
LMBF24UU | 6 | 1100 | 1.5000 | 2.3750 | 3.0000 | 3.7500 | .5000 | 3.0625 | .3440 | .5000 | .3280 | .0010 | .0010 | 2180 | 4020 |
| 38.100 | 38.100 | 60.325 | 76.200 | 95.250 | 12.700 | 77.788 | 8.731 | 12.700 | 8.334 | 20 | 20 | ||||||
| 2 |
LMBF32 |
LMBF32UU | 6 | 1760 | 2.0000 | 3.0000 | 4.0000 | 4.3750 | .5000 | 3.6875 | .3440 | .5000 | .3280 | .0010 | .0010 | 3820 | 7940 |
| 50.800 | 50.800 | 76.200 | 101.600 | 111.125 | 12.700 | 93.662 | 8.731 | 12.700 | 8.334 | 25 | 25 | ||||||
| Nominal Shaft Diameter (Inch/mm) |
Nominal Part No. | Major Dimensions (Inch/mm) | Eccentricity Inch/μm |
Squareness Inch/μm |
Basic Load Rating | |||||||||||||
| Standard Type |
Seal Type | Ball Circuit |
Weight g |
dr | D | L | Flange | Dynamic C(N) |
Static Co(N) |
|||||||||
| Df | k | t | DP | X | Y | Z | ||||||||||||
| 1/4 |
LMBK4 |
LMBK4UU | 4 | 25 | .2500 | .5000 | .7500 | 1.2500 | 1.0000 | 0.219 | .8750 | .1560 | .2500 | .1410 | .0005 | .0005 | 206 | 265 |
| 6.350 | 6.350 | 12.700 | 19.050 | 31.750 | 25.400 | 5.556 | 22.225 | 3.969 | 6.350 | 3.572 | 12 | 12 | ||||||
| 3/8 |
LMBK6 |
LMBK6UU | 4 | 32 | .3750 | .6250 | .8750 | 1.5000 | 1.2500 | .2500 | 1.0620 | .1875 | .2970 | .1720 | .0005 | .0005 | 225 | 314 |
| 9.525 | 9.525 | 15.875 | 22.225 | 38.100 | 31.750 | 6.350 | 26.988 | 4.763 | 7.541 | 4.366 | 12 | 12 | ||||||
| 1/2 |
LMBK8 |
LMBK8UU | 4 | 68 | .5000 | .8750 | 1.2500 | 1.7500 | 1.3750 | .2500 | 1.312 | .1875 | .2970 | .1720 | .0005 | .0005 | 510 | 784 |
| 12.700 | 12.700 | 22.225 | 31.750 | 44.450 | 34.925 | 6.350 | 33.338 | 4.763 | 7.541 | 4.366 | 12 | 12 | ||||||
| 5/8 |
LMBK10 |
LMBK10UU | 4 | 124 | .6250 | 1.1250 | 1.5000 | 2.0000 | 1.5000 | .2500 | 1.5620 | .1875 | .2970 | .1720 | .0005 | .0005 | 774 | 1180 |
| 15.875 | 15.875 | 28.575 | 38.100 | 50.800 | 38.100 | 6.350 | 39.688 | 4.763 | 7.541 | 4.366 | 12 | 12 | ||||||
| 3/4 |
LMBK12 |
LMBK12UU | 5 | 150 | .7500 | 1.2500 | 1.6250 | 2.1875 | 1.6875 | .3125 | 1.7180 | .2187 | .3440 | .2030 | .0006 | .0006 | 862 | 1370 |
| 19.050 | 19.050 | 31.750 | 41.275 | 55.563 | 42.863 | 7.938 | 43.660 | 5.556 | 8.731 | 5.159 | 15 | 15 | ||||||
| 1 |
LMBK16 |
LMBK16UU | 6 | 280 | 1.0000 | 1.5625 | 2.2500 | 2.5000 | 2.0000 | .3125 | 2.0310 | .2187 | .3440 | .2030 | .0006 | .0006 | 980 | 1570 |
| 25.400 | 25.400 | 39.688 | 57.150 | 63.500 | 50.800 | 7.938 | 51.594 | 5.556 | 8.731 | 5.159 | 15 | 15 | ||||||
| 1-1/4 |
LMBK20 |
LMBK20UU | 6 | 580 | 1.2500 | 2.0000 | 2.6250 | 3.1250 | 2.5000 | .3750 | 2.5625 | .2812 | .4060 | .2656 | .0008 | .0008 | 1570 | 2740 |
| 31.750 | 31.750 | 50.800 | 66.675 | 79.375 | 63.500 | 9.525 | 65.088 | 7.144 | 10.319 | 6.747 | 20 | 20 | ||||||
| 1-1/2 |
LMBK24 |
LMBK24UU | 6 | 930 | 1.5000 | 2.3750 | 3.0000 | 3.7500 | 3.0000 | .5000 | 3.0625 | .3440 | .5000 | .3280 | .0010 | .0010 | 2180 | 4020 |
| 38.100 | 38.100 | 60.325 | 76.200 | 95.250 | 76.200 | 12.700 | 77.788 | 8.731 | 12.700 | 8.334 | 25 | 25 | ||||||
| 2 |
LMBK32 |
LMBK32UU | 6 | 1580 | 2.0000 | 3.0000 | 4.0000 | 4.3750 | 3.5000 | .5000 | 3.6875 | .3440 | .5000 | .3280 | .0010 | .0010 | 3820 | 7940 |
| 50.800 | 50.800 | 76.200 | 101.600 | 111.125 | 88.900 | 12.700 | 93.662 | 8.731 | 12.700 | 8.334 | 25 | 25 | ||||||
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