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.

Company LEG ltd. manufactures brushes of any size, production by Client’s individual order is also possible.

During existence of  LEG Ltd. company has 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.

Stamps and technical properties of electric brushes produced by Company LEG Ltd.

Stamps of brush Specific electrical resistance, mkOm*m
Voltage drop on a pair of brushes, W Friction factor, not more Wear on the SCC installation, mm, not more Line speed, m/sec, not more Current density, A/cm2, not more  Recommended specific pressure upon brush, kPa
БДХ 30 from 5 to 20 from 0,9 to 2,3 0,20 0,30 80 12 from 15 to 25
БДХ 40 from 25 to 45 from 0,8 to 3,0 0,20 0,30 40 12 from 15 to 40
БДХ 50 
БДХ 50Ф
from 40 to 85 from 1,0 to 3,3 0,20 0,30 50 15 from 35 to 45
МГ from 0,03 to 0,12 not more 0,3 0,20 0,80 50 50 from 15 to 25
МГ-4 from 0,3 to 1,3 not more 1,6 0,20 0,30 50 40 from 20 to 40
МГСО from 0,1 to 0,3 not more 0,35 0,24 0,60 50 45 from 15 to 40
М1 from 3 to 13 from 1,0 to 1,8 0,25 0,18 50 30 from 15 to 50
М1А from 1,5 to 8 from 0,8 to 1,8 0,22 0,18 50 30 from 25 to 70
EG 8220 from 42 to 72 from 2,3 to 3,6 0,15 0,30 60 20 from 20 to 60
EG 3003 from 10 to 20 from 1,1 to 2,3 0,15 0,30 90 15 from 11 to 25
EG 4003 from 30 to 50 from 0,7 to 2,3 0,15 0,30 40 12 from 26 to 40
EG 5003 from 42 to 85 from 2,0 to 3,3 0,20 0,30 50 14 from 18 to 60
EG 5010 from 30 to 65 from 1,0 to 2,6 0,15 0,30 50 15 from 25 to 50
EG 5020 from 45 to 70 from 1,8 to 3,0 0,15 0,30 60 20 from 34 to 49
EG 313from 42 to 52from 2,3 to 3,00,120,305012from 17 to 30
LFC 554from 17 to 23from 2,3 to 3,00,200,309013from 9 to 20
F2003 from 5 to 16 from 1,2 to 2,5 0,20 0,30 80 17 from 10 to 25
FE6X from 55 to 100 from 1,6 to 3,6 0,22 0,25 55 30 from 25 to 60
EF-61 from 50 to 100 from 1,5 to 3,2 0,23 0,28 55 15 from 20 to 50
EF-68 from 38 to 78 from 1,6 to 3,8 0,23 0,25 20 30 from 25 to 60
50 15
EG 4010 from 20 to 50 from 0,8 to 2,4 0,16 0,30 40 14 from 25 to 40
EG 4012 from 25 to 60 from 1,0 to 3,3 0,17 0,30 40 12 from 30 to 50
EG 5012 from 27 to 65 from 1,1 to 3,6 0,16 0,30 55 12 from 35 to 55
EG 9040 from 10 to 20 from 1,0 to 2,2 0,15 0,30 40 15 from 30 to 40
ЭГ2А from 12 to 26 from 0,9 to 1,9 0,23 0,40 70 18 from 20 to 50
ЭГ2АФ from 13 to 25 from 1,1 to 2,1 0,23 0,40 90 18 from 15 to 25
ЭГ4 from 6 to 16 from 0,8 to 2,0 0,25 0,60 80 20 from 15 to 25
ЭГ8 from 36 to 50 from 1,0 to 1,8 0,25 0,40 70 15 from 15 to 40
ЭГ14 from 20 to 38 from 1,1 to 2,1 0,25 0,40 70 20 from 20 to 50
ЭГ61 from 25 to 45 from 1,3 to 3,1 0,17 0,40 70 21,5 from 25 to 50
ЭГ61А from 36 to 60 from 1,5 to 3,2 0,15 0,30 70 22 from 20 to 50
ЭГ64 from 30 to 65 from 1,0 to 2,6 0,15 0,30 70 20 from 25 to 60
ЭГ71 from 20 to 35 from 1,1 to 2,1 0,3 0,40 70 20 from 20 to 30
ЭГ74 from 35 to 75 from 1,2 to 2,4 0,22 0,40 70 22 from 17,5 to 50
ЭГ84 from 30 to 70 from 1,5 to 3,5 0,19 0,40 70 22 from 20 to 60
ЭГ841 from 60 to 80 from 1,7 to 3,7 0,17 0,35 70 22 from 20 to 60
ЭГ85 from 35 to 75 from 1,6 to 2,6 0,20 0,40 70 22 from 17,5 to 50
LE34from 6 to 16from 2,0 to 3,60,190,508020from 15 to 25
EH34from 8 to 18from 1,8 to 3,30,170,408020from 15 to 35
Г3 from 8 to 20 from 0,6 to 1,4 0,30 0,50 80 15 from 15 to 25
Г33 not more 900 from 3,0 to 6,0 0,25 - 60 10 from 20 to 60
МГС21Н not more 0,5 not more 0,6 - - 50 25 from 15 to 40
МГС5 from 2 to15 from 0,7 to 1,9 0,22 0,40 50 30 from 20 to 50
611ОМ from 8 to 28 from 0,7 to 1,7 0,3 0,40 90 25 from 12 to 25