LMF LMF...UU Round Flanged Linear Ball Bearing
Features of Round Flanged Linear Ball Bearings
The LMF type linear ball bearing is used in conjunction with the
cylindrical LM optical axis, which is a linear motion system that
can complete infinite linear motion. The load bearing steel ball
and the LM optical axis are in point contact, and the allowable
load is small, but it can achieve high-precision and brisk linear
motion with minimal frictional resistance.
The bearing sleeve is made of high carbon chromium bearing steel,
and its inner and outer surfaces are ground after heat treatment.
Linear ball bearings have a wide range of applications, including
office equipment and its peripheral equipment, various measuring
instruments, automatic recording devices and digital
three-dimensional measuring instruments and other precision
instruments; as well as multi-axis drilling machines, punching
machines and tool grinders, automatic gas cutting equipment,
Sliding parts of industrial machinery such as printing machinery,
card sorting machines, and food packaging machines.
Flanged linear bearings are widely used in electronic equipment,
tensile testing machines and digital three-dimensional coordinate
measuring equipment and other precision equipment, as well as
multi-axis machine tools, punching machines, tool grinders,
automatic gas cutting machines, printers, card sorting machines,
food packaging machines and other industries Mechanical sliding
parts.
The biggest feature of the flanged linear ball bearing is that the
flange and the bearing are integrated. A series of products with
flanges on the outer wheel makes axial positioning simple; no
bearing housing is required, making it more economical. When there
is no connecting piece at one end of the shaft and it needs to be
fixed on a flat surface such as a plate or a wall, the flange
bearing shows its advantages. In order to obtain low friction
torque, high rigidity, and good rotation accuracy of the bearing,
steel balls with small outer diameters are used. The use of hollow
shafts ensures light weight and space for wiring.
Specifications of Round Flanged Linear Ball Bearings
Model No.
Standard type |
Ball rows | Main dimensions |
| Inscribed bore diameter | Outer diameter | Length | Flange diameter |
| dr | Tolerance | D | Tolerance | L | Tolerance | 
1 | Tolerance |
| LMF 6 | 4 | 6 |
0 –0.009 | 12 | 0 –0.011 | 19 |
0 –0.2 | 28 |
0 –0.2 |
| LMF 8S | 4 | 8 | 15 | 17 | 32 |
| LMF 8 | 4 | 8 | 15 | 24 | 32 |
| LMF 10 | 4 | 10 | 19 | 0 –0.013 | 29 | 39 |
| LMF 12 | 4 | 12 | 21 | 30 | 42 |
| LMF 13 | 4 | 13 | 23 | 32 | 43 |
| LMF 16 | 5 | 16 | 28 | 37 | 48 |
| LMF 20 | 5 | 20 | 0 –0.010 | 32 | 0 –0.016 | 42 | 54 |
| LMF 25 | 6 | 25 | 40 | 59 |
0 –0.3 | 62 |
| LMF 30 | 6 | 30 | 45 | 64 | 74 |
| LMF 35 | 6 | 35 | 0 –0.012 | 52 | 0 –0.019 | 70 | 82 |
| LMF 40 | 6 | 40 | 60 | 80 | 96 | 0 –0.3 |
| LMF 50 | 6 | 50 | 80 | 100 | 116 |
| LMF 60 | 6 | 60 | 0 –0.015 | 90 | 0 –0.022 | 110 | 134 |
| Flange perpendicularity | Eccentricity (max) | Radial clearance tolerance | Basic load rating | |
| | Mounting hole | | |
| H | PCD | d1 ×d2 ×h |  m |  m |  m | C N | C0 N | Mass g |
| 5 | 20 | 3.4 ×6.5 ×3.3 | 12 | 12 | –5 | 206 | 265 | 23 |
| 5 | 24 | 3.4 ×6.5 ×3.3 | 12 | 12 | –5 | 176 | 225 | 29 |
| 5 | 24 | 3.4 ×6.5 ×3.3 | 12 | 12 | –5 | 265 | 402 | 33 |
| 6 | 29 | 4.5 ×8 ×4.4 | 12 | 12 | –5 | 373 | 549 | 59 |
| 6 | 32 | 4.5 ×8 ×4.4 | 12 | 12 | –5 | 412 | 598 | 68 |
| 6 | 33 | 4.5 ×8 ×4.4 | 12 | 12 | –7 | 510 | 775 | 80 |
| 6 | 38 | 4.5 ×8 ×4.4 | 12 | 12 | –7 | 775 | 1180 | 126 |
| 8 | 43 | 5.5 ×9.2 ×5.4 | 15 | 15 | –9 | 863 | 1370 | 160 |
| 8 | 51 | 5.5 ×9.2 ×5.4 | 15 | 15 | –9 | 980 | 1570 | 305 |
| 10 | 60 | 6.6 × 11 ×6.5 | 15 | 15 | –9 | 1570 | 2750 | 422 |
| 10 | 67 | 6.6 × 11 ×6.5 | 20 | 20 | – 13 | 1670 | 3140 | 583 |
| 13 | 78 | 9 × 14 ×8.6 | 20 | 20 | – 13 | 2160 | 4020 | 960 |
| 13 | 98 | 9 × 14 ×8.6 | 20 | 20 | – 13 | 3820 | 7940 | 1920 |
| 18 | 112 | 11 × 17.5 × 10.8 | 25 | 25 | – 13 | 4710 | 10000 | 2720 |
