Carbon brushes

 

carbon brushes for industry and transport

  • stationary commutator motors (AC, DC)
  • stationary ring motors
  • traction commutator motors (AC, DC)

carbon brushes for automotive industry

  • starters
  • alternators
  • dynamos
  • auxiliary motors

carbon brushes for electrical hand tools

  • drills
  • grinders
  • saws
  • other

carbon brushes for special

  • generators for frequency changes
  • small motors and generators in aeroplanes
  • in measuring, regulation and information technics

carbon brushes for household appliances

  • washing machines
  • kitchen robots
  • hair driers
  • vacuum cleaners
  • other
  

material parameters

carbongraphites

Grade

Volume
density
(mean value)

Specific
elec.resist
(mean value)

Hardness
HRBSh
(mean value)

Recommen.
current
density

Circumferen-
tial velocity
(max.)

Recommen.
pressure on
brush

Tot.voltage
drop
(max.)

Coefficient
of friction
(max.)

Applications

CG 311

1,55

800

85 HR 10/60

12

55

25-35

-

-

Small universal AC motors - motors for handtools and home appliances 

CG 326

1,53

1300

76 HR 10/60

10

30

25-35

Small universal AC motors - motors for handtools and home appliances 

CG 342

1,45

500

97 NR 10/60

8

30

30-40

7,0

0,30

Small universal AC motors - motors for handtools and home appliances 

CG 343

1,45

500

97 HR 10/60

8

30

30-40

7,0

-

Small universal AC motors - motors for handtools and home appliances 

bakelitegRAPHITES

Grade

Volume
density
(mean value)

Specific
elec.resist
(mean value)

Hardness
HRBSh
(mean value)

Recommen.
current
density

Circumferen-
tial velocity
(max.)

Recommen.
pressure on
brush

Tot.voltage
drop
(max.)

Coefficient
of friction
(max.)

Applications

CG 329

1,60

375

85 HR 10/40

10

50

25-35

-

-

Small universal AC motors - motors for handtools and home appliances 

electroGRAPHITES

Grade

Volume
density
(mean value)

Specific
elec.resist
(mean value)

Hardness
HRBSh
(mean value)

Recommen.
current
density

Circumferen-
tial velocity
(max.)

Recommen.
pressure on
brush

Tot.voltage
drop
(max.)

Coefficient
of friction
(max.)

Applications

EG 605

1,67

33

90 HR 10/100

10

50

30

3,5

0,20

Generators and AC motors, traction motors 

EG 616

1,67

33

90 HR 10/100

10

50

30

3,5

0,20

Generators and AC motors, traction motors 

EG 624

1,65

20

77 HR 10/100

10

40

18

2,9

0,25

Direct-current machines up to 230V, machines with bronze or copper rings 

EG 640

1,70

44

92 HR 10/100

10

50

30

3,3

0,20

DC and AC traction motors

EG 642

1,70

44

100 HR 10/100

10

50

30

3,3

0,15

DC and AC traction motors

EG 657

1,70

44

100 HR 10/100

10

50

30

3,3

0,15

DC and AC traction motors

EG 670

1,60

48

92 HR 10/100

10

50

18-30

3,5

0,20

DC traction motors, direct current motors and generators 

EG 673

1,57

14

82 HR 10/40

10

50

20

3,5

0,20

DC traction motors of lower and medium outputs, generators 

EG 676

1,60

14

75 HR 10/60

10

50

20

3,5

0,20

DC traction motors of lower and medium outputs, generators, battery vehicle 

EG 680

1,60

50

97 HR 10/100

10

50

20

3,6

0,20

DC traction motors, generators exciters, AC motors 

GRAPHITES

Grade

Volume
density
(mean value)

Specific
elec.resist
(mean value)

Hardness
HRBSh
(mean value)

Recommen.
current
density

Circumferen-
tial velocity
(max.)

Recommen.
pressure on
brush

Tot.voltage
drop
(max.)

Coefficient
of friction
(max.)

Metal
content

Applications

CG 318

1,53

18

93 HR 10/20

8

80

20-25

3,8

0,40

-

Machines with steel rings for high circumferential velocities - turbogenerators, hydroalternators 

metaloGRAPHITES

Grade

Volume
density
(mean value)

Specific
elec.resist
(mean value)

Hardness
HRBSh
(mean value)

Recommen.
current
density

Circumferen-
tial velocity
(max.)

Recommen.
pressure on
brush

Tot.voltage
drop
(max.)

Coefficient
of friction
(max.)

Metal
content

Applications

MG 407

3,65

5,50

100 HR 10/60

24

47

20-25

2,6

0,26

60

Small moters and generators for aviation 

MG 410

5,15

0,12

72 HR 10/60

24

20

20

0,5

0,25

88

Asynchronous motors with rings, brushes for grounding rings,starters up to 3 kW / 12V, max. current density 200 Acm-2/20s 

MG 414

5,60

0,09

60 HR 10/40

24

20

30-40

0,6

0,20

92

Startes up to 3kW/12V 

MG 415

3,90

0,35

75 HR 10/60

16

25

20-25

1,0

0,20

70

Generators and motors with rings 

MG 433

4,45

0,20

80 HR 10/40

15

25

20-25

1,1

0,20

75

Dynamos by 15V, generators and motors with rings 

MG 442

3,50

0,75

90 HR 10/40

15

30

20-25

1,3

0,20

65

Brushes for grounding rings, asynchronous motors with rings 

MG 456

2,50

3,50

95 HR 10/40

15

35

30-40

2,0

0,20

33

Auxilliary car motors 80V current density 35 A/cm2 

MG 457

2,65

1,00

95 HR 10/40

15

35

30-40

1,5

0,20

40

Generators and motors with rings current density 35 A/cm2 

MG 458

2,75

3,50

90 HR 10/40

15

35

30-40

2,0

0,20

42

Auxilliary car motors current density 35 A/cm2, battery vehicles 

MG 459

2,75

2,50

90 HR 10/40

15

35

30-40

2,0

0,20

40

Auxilliary car motors current density 35 A/cm2 

MG 466

2,50

8,00

83 HR 10/40

15

35

30-40

2,2

0,20

32

Motors and generators up to 80V, starters up to 6kW/12V, battery vehicles 

MG 470

3,4

1,50

95 HR 10/40

16

35

18-23

1,5

0,20

55

Starters up to 6kW/24V 

MG 475

3,40

0,92

70 HR 10/60

14

30

18-23

1,4

0,20

60

Generators and motors with rings and small motors 

silverGRAPHITES

Grade

Volume
density
(mean value)

Specific
elec.resist
(mean value)

Hardness
HRBSh
(mean value)

Recommen.
current
density

Circumferen-
tial velocity
(max.)

Recommen.
pressure on
brush

Tot.voltage
drop
(max.)

Coefficient
of friction
(max.)

Metal
content

Applications

Ag 35

2,60

5,75

95 HR 10/20

20

20

20-25

-

-

35

Small el. machines in measuring and regul. technics, tachodynamos 

Ag 93

6,90

0,06

90 HR 10/40

27

20

20-25

-

-

93

Small motors with low voltage in scanning and information technique