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Bearing elements
with profiled raceways
Type LER

Product image Bearing elements with profiled raceways Type LER

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Description

Franke bearing elements type LER are suitable for medium rotational speeds and accuracies. They convince by smooth running, high dynamics and compact installation space. Due to the straight contact surfaces, they can be easily integrated into the surrounding design and have a high rigidity. The low price makes the bearing element of type LER an economical solution. LER are generally mounted without clearance. The preload can be individually adjusted according to the requirements.

Properties - Evaluation

Smooth running
Accuracy
Speed
Stiffness
Assembly
Price

Technical data

Material

Ball race rings: hardened and tempered chrome-silicon steel
Rolling element: hardened rolling bearing steel
Cage: polyamide or thermoplastic polyurethane

Operating temperature

-30 °C to +80 °C, short-term up to +100 °C

Peripheral speed

Max. 5 m/s, without seal max. 10 m/s

Lubricant

Shell Gadus S3 V220 C2

Technical advice

Technical advice

Now new in minimum size:
the Franke LER 1.5

Basic data

  • Installation space 5 x 6 mm
  • KKØ: 40 - 150 mm

The advantages

  • Minimal installation space
  • Minimal weight
  • Adjustable preload
  • Cheap price
  • Free from clearance
  • High resilience
  • Rectangular profile for minor
    manufacturing and assembly costs
kompakt

compact

leicht

light

Vorspannung

adjustable preload

Wirtschaftlichkeit

low costs

Minimal installation space, minimal price

In the course of general miniaturization, Franke developed the LER 1.5 bearing element. In the competitive field of small, compact and lightweight bearings, the Franke LER 1.5 is the most space-saving. In contrast to a thin section bearing or a plastic plain bearing, the preload on the LER 1.5 can also be adjusted - precisely according to the criteria of the application. The LER 1.5 not only impresses with its special performance, but also with its particularly attractive price.

 

Wälzlager LER

rectangular wire profile

Advantage of rectangular profile

Like all bearings of the LER type, the LER 1.5 has running wires made of rectangular profile wire. Therefore, the wire bed can also be made at right angles here. This is particularly helpful in the miniature area and considerably reduces the cost of manufacturing the housing parts. In addition, the rectangular profile improves rigidity and makes assembly easier.

 

Wälzlager LER

Fields of application

The LER 1.5 is particularly suitable for ultra-compact applications such as in sensitive robots for human-robot collaboration (HRC), in machine exoskeletons or in medical applications. With its small installation space, the new LER 1.5 ideally meets the trend towards miniaturization in the handling and automation area. Small turntables, grippers or manipulators can be moved precisely and with a high load capacity.

 

Design examples

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Data tables

Compare data and calculate load cases
Technical Drawing LER 1.5
LER 1.5 M x N 5 x 6 mm MyFranke
Name KKØ
mm		 Load ratings
kN		 Stat. M.
kNm		 Weight
kg		 CAD-Download
Calculate loads
C0a C0r Ca Cr C0m
LER1.5-0040 40 8 4 5 4 0,1 0,01

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LER1.5-0050 50 11 5 5 4 0,1 0,02
LER1.5-0060 60 13 6 6 5 0,2 0,02
LER1.5-0070 70 15 7 6 5 0,2 0,03
LER1.5-0080 80 17 8 6 5 0,3 0,03
LER1.5-0090 90 20 9 6 6 0,4 0,03
LER1.5-0100 100 22 10 7 6 0,5 0,04
LER1.5-0110 110 24 11 7 6 0,6 0,04
LER1.5-0120 120 26 12 7 6 0,7 0,05
LER1.5-0130 130 29 13 7 6 0,9 0,05
LER1.5-0140 140 31 14 8 7 1,0 0,05
LER1.5-0150 150 33 15 8 7 1,2 0,06
Download datasheet as PDF

Compare type LER with other bearing types
Rotational resistance
Diagram Rotational resistance LER 1.5
Radial and axial runout accuracy
Diagram Radial and axial runout accuracy LER 1.5
Technical Drawing LER 2
LER 2 M x N 7,5 x 8,9 mm MyFranke
Name KKØ
mm		 Load ratings
kN		 Stat. M.
kNm		 Weight
kg		 CAD-Download
Calculate loads
C0a C0r Ca Cr C0m
LER2-0080 80 28 13 11 9 0,5 0,06

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LER2-0100 100 35 17 12 10 0,8 0,08
LER2-0120 120 42 20 12 11 1,2 0,10
LER2-0140 140 49 23 13 11 1,6 0,11
LER2-0160 160 56 27 14 12 2,1 0,13
LER2-0180 180 64 30 14 12 2,7 0,15
LER2-0200 200 71 33 15 13 3,3 0,16
LER2-0220 220 77 36 15 13 4,0 0,18
LER2-0240 240 85 40 16 14 4,8 0,19
LER2-0260 260 92 43 17 14 5,6 0,21
LER2-0280 280 100 47 17 15 6,6 0,23
LER2-0300 300 107 50 17 15 7,6 0,24
LER2-0320 320 113 53 18 15 8,5 0,26
LER2-0340 340 121 57 18 16 9,7 0,28
LER2-0360 360 128 60 19 16 10,9 0,29
LER2-0380 380 136 64 19 16 12,1 0,31
LER2-0400 400 143 67 19 17 13,5 0,33
Download datasheet as PDF

Compare type LER with other bearing types
Rotational resistance
Diagram Rotational resistance LER 2
Radial and axial runout accuracy
Diagram Radial and axial runout accuracy LER 2
Technical Drawing LER 3
LER 3 M x N 11 x 13 mm MyFranke
Name KKØ
mm		 Load ratings
kN		 Stat. M.
kNm		 Weight
kg		 CAD-Download
Calculate loads
C0a C0r Ca Cr C0m
LER3-0100 100 54 25 18 15 1,3 0,17

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LER3-0150 150 82 39 21 18 2,9 0,26
LER3-0200 200 110 52 23 20 5,2 0,34
LER3-0250 250 138 65 25 22 8,1 0,43
LER3-0300 300 168 79 27 24 11,9 0,52
LER3-0350 350 196 92 29 25 16,2 0,60
LER3-0400 400 224 105 30 26 21,1 0,69
LER3-0450 450 252 119 32 27 26,7 0,77
LER3-0500 500 280 132 33 28 33,0 0,86
LER3-0550 550 308 145 34 29 39,9 0,94
LER3-0600 600 339 159 35 30 47,8 1,03
LER3-0650 650 367 172 36 31 56,1 1,12
LER3-0700 700 395 186 37 32 65,0 1,20
LER3-0750 750 423 199 38 33 74,6 1,29
LER3-0800 800 451 212 39 34 84,8 1,37
LER3-0850 850 479 225 40 34 95,7 1,46
LER3-0900 900 509 239 41 35 107,8 1,55
LER3-0950 950 537 253 44 38 120,0 1,67
LER3-1000 1000 565 266 42 37 133,0 1,72
LER3-1100 1100 621 292 44 38 160,8 1,89
LER3-1200 1200 680 319 45 39 191,9 2,06
LER3-1300 1300 736 346 47 40 225,0 2,23
LER3-1400 1400 791 372 48 41 260,7 2,41
LER3-1500 1500 850 399 49 43 300,0 2,58
Download datasheet as PDF

Compare type LER with other bearing types
Rotational resistance
Diagram Rotational resistance LER 3
Radial and axial runout accurancy
Diagram Radial and axial runout accurancy LER 3
Technical Drawing LER 4
LER 4 M x N 14 x 16 mm MyFranke
Name KKØ
mm		 Load ratings
kN		 Stat. M.
kNm		 Weight
kg		 CAD-Download
Calculate loads
C0a C0r Ca Cr C0m
LER4-0200 200 175 82 40 34 8,2 0,61

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LER4-0250 250 219 103 43 37 12,9 0,76
LER4-0300 300 264 124 46 40 18,6 0,91
LER4-0350 350 308 145 49 42 25,4 1,06
LER4-0400 400 353 166 51 44 33,2 1,21
LER4-0450 450 401 189 54 47 42,5 1,37
LER4-0500 500 446 210 56 49 52,5 1,53
LER4-0550 550 491 231 58 50 63,5 1,68
LER4-0600 600 535 252 60 52 75,6 1,83
LER4-0650 650 580 273 62 53 88,7 1,98
LER4-0700 700 624 294 64 55 102,8 2,13
LER4-0750 750 669 315 65 56 118,0 2,29
LER4-0800 800 714 336 67 58 134,3 2,44
LER4-0850 850 758 357 68 59 151,6 2,59
LER4-0900 900 803 378 70 60 170,0 2,74
LER4-0950 950 851 401 71 62 190,3 2,90
LER4-1000 1000 896 422 73 63 210,8 3,05
LER4-1100 1100 985 464 75 65 254,9 3,36
LER4-1200 1200 1074 506 77 67 303,3 3,66
LER4-1300 1300 1163 548 80 69 355,8 3,96
LER4-1400 1400 1257 592 82 71 413,9 4,27
LER4-1500 1500 1346 633 84 73 474,9 4,58
Download datasheet as PDF

Compare type LER with other bearing types
Rotational resistance
Diagram Rotational resistance LER 4
Radial and axial runout accuracy
Diagram Radial and axial runout accuracy LER 4
Technical Drawing LER 5
LER 5 M x N 15,75 x 17,5 mm MyFranke
Name KKØ
mm		 Load ratings
kN		 Stat. M.
kNm		 Weight
kg		 CAD-Download
Calculate loads
C0a C0r Ca Cr C0m
LER5-0250 250 260 123 43 37 15,3 0,94

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LER5-0300 300 313 148 46 40 22,1 1,13
LER5-0350 350 366 172 49 42 30,2 1,31
LER5-0400 400 419 197 51 44 39,5 1,50
LER5-0450 450 477 225 54 47 50,5 1,70
LER5-0500 500 530 250 56 49 62,4 1,88
LER5-0550 550 583 274 58 50 75,5 2,07
LER5-0600 600 636 299 60 52 89,8 2,26
LER5-0650 650 689 324 62 53 105,4 2,45
LER5-0700 700 742 349 64 55 122,2 2,64
LER5-0750 750 795 374 65 56 140,3 2,82
LER5-0800 800 848 399 67 58 159,6 3,01
LER5-0850 850 901 424 68 59 180,2 3,20
LER5-0900 900 954 449 70 60 202,0 3,39
LER5-0950 950 1012 476 71 62 226,1 3,58
LER5-1000 1000 1065 501 73 63 250,5 3,77
LER5-1100 1100 1171 551 75 65 303,0 4,14
LER5-1200 1200 1277 601 77 67 360,4 4,52
LER5-1300 1300 1383 651 80 69 422,9 4,90
LER5-1400 1400 1493 703 82 71 491,9 5,28
LER5-1500 1500 1599 753 84 73 564,4 5,65
LER5-1600 1600 1705 803 86 75 641,9 6,03
LER5-1700 1700 1811 853 88 76 724,4 6,40
LER5-1800 1800 1922 905 90 78 814,0 6,79
Download datasheet as PDF

Compare type LER with other bearing types
Rotational resistance
Diagram Rotational resistance LER 5
Radial and axial runout accuracy
Diagram Radial and axial runout accuracy LER 5
Mounting space M X N
Bearing diameter KK∅
Wire diameter λ Stat. load rate C0 ax. Stat. load rate C0 rad. Dyn. load rate C ax. Dyn. load rate C rad. Static moment C0m Weight
 
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Technical Drawing  
Diagrams  
Data sheet (pdf)

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