Ahead thanks to own technologies


Carbon brushes for electrical machines

Carbon brushes are special conductive parts of a current collector, which are used for current supply in collectors and collector rings of electric rotating machines. 
During existence of  LEG Ltd. company created carbon brush materials for all modern areas of application. We think that our offered solutions are the most efficient in the majority of application areas in the world for today.
 
For convenience of consumers we offer the classification of carbon brushes materials according to basic conditions of brush movement but not according to the technology of production.  

Within scopes of the class carbon brushes differ in price and quality characteristics. That’s why every client of ours will be able to find the qualitative production for reasonable prices for any area of application.

Carbon brushes manufactured by LEG Ltd.

The brush grades and technical characteristics of carbon brushes are manufactured by LEG Ltd.

Brush grade
Density*, g/cm3
Resistivity of brush material, (µΩ*m)
Contact voltage 
drop (sum of both polarities), В
Friction 
Coefficients
Wearing rate, mm, no moreSurface Speed, m/sNormal Current Density, A/cm²Spring pressure, kPa
BDH 301,72from 5 to 20from 0,9 to 2,30,200,308012from 15 to 25
BDH 401,84from 25 to 45from 0,8 to 3,00,200,304012from 15 to 40
BDH 501,85from 40 to 85from 1,0 to 3,30,200,305015from 35 to 45
MG5,00from 0,03 to 0,12from 0,1 to 0,30,200,805050from 15 to 25
MG-43,60from 0,3 to 1,3from 0,7 to 1,60,200,305040from 20 to 40
MGSO5,20from 0,1 to 0,3from 0,1 to 0,350,240,605045from 15 to 40
M13,20from 3 to 13from 1,0 to 1,80,250,185030from 15 to 50
M1A3,00from 1,5 to 8from 0,8 to 2,00,220,185030from 25 to 70
EG 82201,82from 42 to 72from 2,3 to 3,60,200,306015from 20 to 60
EG 30031,78from 10 to 20from 1,1 to 2,30,150,309015from 11 to 25
EG 40031,73from 30 to 50from 0,7 to 2,30,150,304012from 26 to 40
EG 50031,78from 42 to 85from 2,0 to 3,30,200,305014from 18 to 60
EG 50101,70from 30 to 65from 1,0 to 2,60,150,305015from 25 to 50
EG 50201,68from 30 to 65from 0,8 to 2,50,160,305015from 35 to 55
EF 313-from 42 to 52from 2,3 to 3,00,120,305012from 17 to 30
-from 17 to 23from 2,3 to 3,00,20,309013from 9 to 20
F20031,92from 5 to 16from 1,2 to 2,50,200,308017from 10 to 25
FE6X1,80from 55 to 100from 1,6 to 3,60,220,255530from 25 to 60
EF 611,82from 50 to 100from 1,5 to 3,20,230,285515from 20 to 50
EF-681,85from 38 to 78from 1,6 to 3,80,220,252030from 25 to 60
5015
EG 40101,65from 20 to 50from 0,8 to 2,40,160,34014from 25 to 40
EG 40121,70from 25 to 60from 1,0 to 3,30,170,34012from 30 to 50
EG 50121,73from 27 to 65from 1,1 to 3,60,160,35512from 35 to 55
EG 90401,74from 10 to 20from 1,0 to 2,20,150,34015from 30 to 40
ЭГ2А-from 12 to 26from 0,9 to 1,90,230,407018from 20 to 50
ЭГ2АФ-from 13 to 25from 1,1 to 2,10,230,409018from 15 to 25
ЭГ4-from 6 to 16from 0,8 to 2,00,250,608020from 15 to 25
ЭГ 8-from 36 to 50from 1,0 to 1,80,250,407015from 15 to 40
ЭГ14-from 20 to 38from 1,1 to 2,10,250,407020from 20 to 50
ЭГ61-from 25 to 45from 1,3 to 3,10,170,407021,5from 25 to 50
ЭГ61А-from 36 to 72from 1,5 to 3,20,150,307022from 20 to 50
ЭГ64-from 30 to 65from 1,0 to 2,60,150,307020from 25 to 60
ЭГ71-from 20 to 35from 1,1 to 2,10,30,407020from 20 to 30
ЭГ74-from 35 to 75from 1,2 to 2,40,220,407022from 17,5 to 50
ЭГ84-from 30 to 70from 1,5 to 3,50,190,407022from 20 to 60
ЭГ841-from 60 to 80from 1,7 to 3,70,170,357022from 20 to 60
ЭГ85-from 35 to 75from 1,6 to 2,60,200,407022from 17,5 to 50
Г3-from 8 to 20from 0,6 to 1,40,300,508015from 15 to 25
Г331,82no more 900from 3,4 to 6,00,25-6010from 20 to 60
MGS21N3,60no more 0,5 no more 0,6--5025from 15 to 40
MGS53,50from 2 to 15from 0,7 to 1,90,220,405030from 20 to 50
611ОМ-from 8 to 28from 0,7 to 1,70,30,409025from 12 to 25

*The values are indicative target values.