cleaner


clectromotion tool


brush rack


other electricity machine
The carbon brushes the material characteristic form

Grade
Spacific resistance
(¦¸ˇ¤mm2)
Apparent density
(g/cm3)
Hardness
Short circuit commputaion test
Working conditioos
Indentation
(kgf/mm3)
Shore
Contact voltage-drop of couple brusbes(V)
Coelf of friction
Wear valuss for 50 hours (mm)
Normal current density (A/cm2)

Normal operating speed  (m/s)

Normal operating 
speed (g/cm2)

Commutation
circum-stanees
S3
11
1.80
16
2.2
0.25
0.20
11
25
200-250
normal
D104
8
1.70
5
2.5
0.20
0.25
12
40
150-200
normal
D172
14
1.60
6
2.7
0.25
0.20
12
70
150-200
normal
D202
19
1.65
30
2.7
0.23
0.15
10
45
200-250
Somewist difficult
D213
28
1.60
46
2.6
0.25
0.15
10
40
200-400
Somewist difficult
D214
26
1.60
45
2.4
0.25
0.15
10
40
200-400
Somewist difficult
D252
14
1.60
15
2.7
0.23
0.15
12
50
200-250
Somewist difficult
D308
45
1.50
46
2.7
0.29
0.15
10
40
200-400
difficult
D374D
44
1.50
21
2.8
0.20
0.20
12
50
200-400
difficult
J101
0.08
5.0
12
0.3
0.20
0.60
20
20
180-230
easiest
J102
0.25
5.0
10
0.3
0.20
0.40
20
20
180-230
easiest
J113
0.10
5.5
8
0.4
0.20
0.50
20
20
180-230
easiest
J151
0.10
5.5
9
0.35
0.20
0.55
25
20
180-230
easiest
J164
0.10
5.5
8
0.3
0.20
0.50
20
20
180-230
easiest
J201
4.0
3.0
20
1.8
0.25
0.15
15
25
150-200
easy
J203
6.0
2.5
14
2.0
0.25
0.10
12
20
150-200
easy
J204
0.8
4.0
24
1.0
0.20
0.25
15
20
200-250
easiest
J205
4.0
3.0
16
1.5
0.25
0.20
15
35
150-200
easy
J206
4.0
3.0
21
1.6
0.20
0.10
15
25
150-200
easy
J220
7.0
2.5
15
1.7
0.26
0.10
12
20
150-200
easy