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ECS Brushes: Tables of Properties and Performance Data

The following is a list of tables of brush grade physical properties and performance data. They are organized under typical application uses. Select the link below to go to the table on this page. For downloadable PDF documents, either go to the Brushes Document Downloads or the Technical Resource Center.


Automotive Accessory Brush Grades
Automotive Air Handling Motor Brushes
Automotive Alternator Brushes
Automotive Fuel Pump Brushes
Automotive Starter Motor Brushes
Power Tool Brush Grades
Appliance Brush Grades
BEV (Battery Electric Vehicle) and Consumer Brush Grades
BEV Consumer Appliance and Power Tool Brushes

Automotive Accessory Brush Grades Table of Properties

 

Physical Properties Operating Characteristics  
Grade
Density*
(g/cm3)
Resistivity**
(µOcm)
Transverse
Strength***
(kg/cm2)
Contact
Drop
Coefficient
of Friction
Normal Current
Density
(A/cm2)
Normal Maximum
Speed
(m/sec)
Metal
(%)
ECS CM134N
2.93-3.37
30-200
195-405
Low
Low
13
30
55.0
ECS CM211
2.85
50
205
Low
Low
13
30
48.0
ECS CM3B
4.00
90
295
Very Low
Low
15
35
75.0
ECS CM5B
3.50
195
330
Very Low
Low
15
35
65.0
ECS CM704-1
2.56-2.94
45-1905
176-365
Low
Low
13
30
45.0
ECS CM708
2.51-2.89
120-280
182-378
Low
Low
13
30
45.0
ECS CM716N
2.80-3.21
30-200
200-460
Low
Low
13
30
50.0
ECS CM720
2.60-3.00
60-140
78-162
Low
Low
13
30
45.0
ECS CM739-1
2.30-2.65
150-450
90-200
Low
Low
13
30
37.0
ECS CM749
2.85-3.30
50-250
80-200
Low
Low
13
30
53.0
ECS CM8100
2.70
65
245
Low
Low
13
30
40.0
ECS CM8145-GT
2.27
3050
50
Low
Low
13
30
34.0
ECS CM863
3.05
30
195
Low
Low
13
30
50.0
ECS CM880DL
2.42
235
200
Low
Low
13
30
33.0
ECS MB62
2.70
220
60
Low
Low
13
30
39.0
ECS MB70
2.55
600
60
Low
Low
13
30
30.0
ECS MB98
2.80
240
60
Low
Low
13
30
45.0
* Single value is average Density
** Single value is maximum Resistivity
••• Single value is minimum Transverse Strength

 

 

 

 

 

 

 


 

 

 

 

 

 

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Automotive Air Handling Motor Brush Grades pdfTable of Properties

 

  Physical Properties Operating Characteristics  
Grade
Density*
(g/cm3)
Resistivity**
(µOcm)
Transverse
Strength***
(kg/cm2)
Contact
Drop
Coefficient
of Friction
Normal Current
Density
(A/cm2)
Normal Maximum
Speed
(m/sec)
Metal
(%)
ECS 8228
2.75
300
80
Low
Low
13
30
40.0
ECS CM134
3.15
100
155
Low
Low
13
30
57.0
ECS CM215
2.60
450
80
Low
Low
13
30
35.0
ECS CM712
2.43-2.79
80-186
130-270
Low
Low
13
30
40.0
ECS CM717
2.38-2.62
120-260
130-270
Low
Low
13
30
33.0
ECS CM719
2.23-2.57
200-600
160-320
Low
Low
13
30
32.0
ECS CM730
2.15-2.47
140-320
70-170
Low
Low
13
30
30.0
ECS CM741
2.53-2.91
50-250
150-330
Low
Low
13
30
43.0
ECS CM8145-GA
2.30
330
145
Low
Low
13
30
35.0
ECS CM146
2.74
70
255
Low
Low
13
30
43.0
ECS CM8197
2.45
100
195
Low
Low
13
30
34.0
ECS CM880
2.45
100
200 Typ
Low
Low
13
30
33.0
ECS CM880H
2.35-2.55
120-280
130-270
Low
Low
13
30
33.0
* Single value is average Density
** Single value is maximum Resistivity
••• Single value is minimum Transverse Strength

 

 

 


 

 

 

 

 

 

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Automotive Alternator Brush Grades pdfTable of Properties

 

  Physical Properties Operating Characteristics  
Grade
Density*
(g/cm3)
Resistivity**
(µOcm)
Transverse
Strength***
(kg/cm2)
Contact
Drop
Coefficient
of Friction
Normal Current
Density
(A/cm2)
Normal Maximum
Speed
(m/sec)
Metal
(%)
ECS CM122
2.55-2.94
129-301
227-472
Low
Low
13
30
45.0
ECS CM122-1
2.42-2.78
156-364
214-445
Low
Low
13
30
43.0
ECS CM125
2.17-2.50
480-1120
129-268
Low
Low
13
30
32.0
ECS CM125M
2.17-2.50
300-900
100-220
Low
Low
13
30
32.0
ECS CM150
2.25
1000
80
Low
Low
13
25
25.0
ECS CM159
2.25
3000
80
Low
Low
13
25
25.0
ECS CM184
2.40
600
80
Low
Low
13
30
30.0
ECS CM710
2.16-2.48
356-832
143-333
Low
Low
13
30
30.0
ECS CM747
2.25-2.60
300-900
110-250
Low
Low
13
30
25.0
ECS CM8130
2.65
380
295
Low
Low
13
30
45.0
ECS CM8132
2.62
305
275
Low
Low
13
30
43.0
ECS H819
1.50
2540
210
Medium
Very Low
12
40
-
* Single value is average Density
** Single value is maximum Resistivity
••• Single value is minimum Transverse Strength

 

 

 


 

 

 

 

 

 

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Automotive Fuel Pump Brush Grades pdfTable of Properties

 

  Physical Properties Operating Characteristics  
Grade
Density*
(g/cm3)
Resistivity**
(µOcm)
Transverse
Strength***
(kg/cm2)
Contact
Drop
Coefficient
of Friction
Normal Current
Density
(A/cm2)
Normal Maximum
Speed
(m/sec)
Metal
(%)
ECS H809
1.65
3050
260
Medium
Very Low
12
40
-
ECS IM837
1.88
5350
170
High
Low
14
35
-
* Single value is average Density
** Single value is maximum Resistivity
••• Single value is minimum Transverse Strength

 


 

 

 

 

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Automotive Starter Motor Brush Grades pdfTable of Properties

 

  Physical Properties Operating Characteristics  
Grade
Density*
(g/cm3)
Resistivity**
(µOcm)
Transverse
Strength***
(kg/cm2)
Contact
Drop
Coefficient
of Friction
Normal Current
Density
(A/cm2)
Normal Maximum
Speed
(m/sec)
Metal
(%)
ECS Cm + O
6.35
30
205
Very Low
Low
15
35
95.0
ECS CM191
3.50
200
120
Very Low
Low
15
35
62.0
ECS CM193
3.70
180
155
Very Low
Low
15
35
66.0
ECS CM743
3.57-3.95
20-80
280-580
Very Low
Low
15
35
64.0
ECS CM758P-1
3.45-3.95
10-60
250-550
Very Low
Low
15
35
62.0
ECS CM768
3.35-3.65
30-90
240-390
Very Low
Low
15
35
60.0
ECS CM778
3.55-4.08
20-50
280-540
Very Low
Low
15
35
66.0
ECS CM802
3.75
26
300
Very Low
Low
15
35
66.0
ECS CM8118
3.55
65
230
Very Low
Low
15
35
59.0
ECS CM8138
3.65
90
240
Very Low
Low
15
35
63.0
ECS CM835
6.30
10
770
Very Low
Low
15
35
96.0
ECS CM851
3.20
85
280
Very Low
Low
15
35
60.0
* Single value is average Density
** Single value is maximum Resistivity
••• Single value is minimum Transverse Strength

 


 

 

 

 

 

 

 

 

 

 

 

 

 

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Power Tool Brush Grades pdfTable of Properties

 

  Physical Properties Operating Characteristics  
Grade
Density*
(g/cm3)
Resistivity**
(µOcm)
Transverse
Strength***
(kg/cm2)
Contact
Drop
Coefficient
of Friction
Normal Current
Density
(A/cm2)
Normal Maximum
Speed
(m/sec)
Metal
(%)
ECS C12
1.50
60,000
50
High
High
9
23
-
ECS CM134
3.15
100
155
Low
Low
13
30
57.0
ECS CM8100
2.70
64
25 Typical
Very Low
Low
13
30
40.0
ECS EG818
1.60
5,590
183 Typical
Medium
Low
11
51
-
ECS EG845
1.55
4,060
176 Typical
Medium
Low
11
51
-
ECS EG848
1.65
4,570
162 Typical
Medium
Low
11
51
-
ECS H100
1.72
2,290
230 Typical
Medium
Very Low
12
40
-
ECS H809
1.65
3,045
260
Medium
Very Low
12
40
-
ECS IM32
1.60
175,000
100
Very High
Very Low
6
25
-
ECS IM829
1.62
100,000
175
Very High
Very Low
10
45
-
ECS IM833
1.95
45,000
155 Typical
Very High
Low
15
25
-
ECS IM853
1.60
100,000
170
Very High
Very Low
10
45
-
ECS PM17
1.60
120,000
100
Very High
High
8
23
-
ECS PM31
1.45
60,000
70
High
High
8
23
-
ECS PM36
1.65
100,000
10
Very High
High
8
23
-
ECS PM70
1.45
75,000
50
Very High
High
4
23
-
ECS PM805
1.95
94,000
225 Typical
Very High
High
10
23
25.0
ECS PM818
1.60
25,400
245 Typical
Very High
High
8.5
23
-
ECS PM825
1.60
80,000
190
Very High
High
8.5
23
-
ECS PM828
1.60
38,000
245Typical
High
High
9
23
-
* Single value is average Density
** Single value is maximum Resistivity
••• Single value is minimum Transverse Strength

 


 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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Appliance Brush Grades pdfTable of Properties

 

  Physical Properties Operating Characteristics  
Grade
Density*
(g/cm3)
Resistivity**
(µOcm)
Transverse
Strength***
(kg/cm2)
Contact
Drop
Coefficient
of Friction
Normal Current
Density
(A/cm2)
Normal Maximum
Speed
(m/sec)
Metal
(%)
ECS EG2365
1.60
5,590
183 Typical
High
Low
11
51
-
ECS EG845
1.55
4,060
176 Typical
Medium
Low
11
51
-
ECS GB631
1.63
115,000
225
Very High
Very Low
9
23
-
ECS GB839
1.45
210,000
120
Very High
Very Low
8
23
-
ECS IM705
1.45
110,000
130
Very High
Very Low
10
45
-
ECS IM709
1.42
170,000
150
Very High
Very Low
8
45
-
ECS IM711
1.45
120,000
120
Very High
Very Low
10
45
-
ECS IM713
1.43
140,000
135
Very High
Very Low
9
45
-
ECS IM812
1.45
114,300
140
Very High
Very Low
10
45
-
ECS IM818
1.60
114,000
170
Very High
Very Low
10
45
-
ECS IM824
1.45
114,000
210 Typical
Very High
Very Low
10
25
-
ECS IM826
1.62
38,100
265
High
Very Low
14
45
1.0
ECS IM827
1.62
43,000
170
High
Very Low
14
45
-
ECS IM828
1.75
23,000
295 Typical
High
Very Low
14
45
-
ECS IM829
1.62
100,000
175 Typical
Very High
Very Low
10
45
-
ECS IM834
1.68
50,800
295
High
Very Low
12
45
-
ECS IM839
1.43
178,000
170
Very High
Very Low
8
45
-
ECS IM852
1.70
48,260
295
High
Very Low
12
45
-
ECS IM858
1.48
76,200
145
High
Very Low
12
45
-
ECS IM859
1.66
53,340
265
High
Very Low
12
45
-
ECS IM891
1.45
95,250
180
High
Very Low
10
45
-
* Single value is average Density
** Single value is maximum Resistivity
••• Single value is minimum Transverse Strength

 


 

 

 

 

 

 

 

 

 

 

 

 

 


 

 

 

 

 

 

 

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Battery Electric Vehicle (BEV) & Consumer Brush Grades pdfTable of Properties

 

Physical Properties Operating Characteristics  
Grade
Density*
(g/cm3)
Resistivity**
(µOcm)
Transverse
Strength***
(kg/cm2)
Contact
Drop
Coefficient
of Friction
Normal Current
Density
(A/cm2)
Normal Maximum
Speed
(m/sec)
Metal
(%)
ECS 4X
1.80
45,000
100
High
Very Low
10
30
-
ECS 9X
1.80
30,000
100
High
Very Low
10
30
-
ECS 9270 72
1.60
40,000
60
High
Very Low
10
30
-
ECS 9270 85
1.65
6,500
60
Medium
Very Low
15
30
-
ECS C16
1.55
120,000
100
Very High
High
9
23
-
ECS CM8100
2.70
64
25 Typical
Very Low
Low
13
30
40.0
ECS GB36
1.70
35,000
70
High
Very Low
5
23
-
ECS GB53
1.53
230,000
120
Very High
Very Low
8
23
-
ECS H100
1.72
2,290
230
Medium
Very Low
12
40
-
ECS H809
1.65
3,050
260 Typical
Medium
Very Low
12
40
-
ECS H817
1.63
3,810
170 Typical
Medium
Very Low
12
40
-
ECS H821
1.90
5,000
77 Typical
Medium
Low
6
30
-
ECS H833
1.75
2,290
230
Medium
Very Low
12
40
-
ECS H836
1.57
2,540
195
Medium
Very Low
12
40
-
ECS IM61
1.60
180,000
100
Very High
Very Low
6
25
-
ECS IM855
1.82
45,720
185
High
Low
15
45
-
ECS IM9101
1.80
10,920
450
High
Very Low
15
45
-
ECS PM803
1.45
89,000
210 Typical
Very High
High
8
23
-
ECS PM829
1.65
50,800
140
Very High
High
9
23
-
* Single value is average Density
** Single value is maximum Resistivity
••• Single value is minimum Transverse Strength

 


 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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Battery Electric Vehicle (BEV), Consumer, Appliance & Power Tool Brushes

pdfTable of Properties

 

  Physical Properties Operating Characteristics  
Grade
Density*
(g/cm3)
Resistivity**
(µOcm)
Transverse
Strength***
(kg/cm2)
Contact
Drop
Coefficient
of Friction
Normal Current
Density
(A/cm2)
Normal Maximum
Speed
(m/sec)
Metal
(%)
ECS EG2365
1.60
5,590
183 Typical
High
Low
11
51
-
ECS EG845
1.55
4,060
176 Typical
Medium
Low
11
51
-
ECS GB631
1.63
115,000
225
Very High
Very Low
9
23
-
ECS GB839
1.45
210,000
120
Very High
Very Low
8
23
-
ECS IM705
1.45
110,000
130
Very High
Very Low
10
45
-
ECS IM709
1.42
170,000
150
Very High
Very Low
8
45
-
ECS IM711
1.45
120,000
120
Very High
Very Low
10
45
-
ECS IM713
1.43
140,000
135
Very High
Very Low
9
45
-
ECS IM812
1.45
114,300
140
Very High
Very Low
10
45
-
ECS IM818
1.60
114,000
170
Very High
Very Low
10
45
-
ECS IM824
1.45
114,000
210 Typical
Very High
Very Low
10
25
-
ECS IM826
1.62
38,100
265
High
Very Low
14
45
1.0
ECS IM827
1.62
43,000
170
High
Very Low
14
45
-
ECS IM828
1.75
23,000
295 Typical
High
Very Low
14
45
-
ECS IM829
1.62
100,000
175 Typical
Very High
Very Low
10
45
-
ECS IM834
1.68
50,800
295
High
Very Low
12
45
-
ECS IM839
1.43
178,000
170
Very High
Very Low
8
45
-
ECS IM852
1.70
48,260
295
High
Very Low
12
45
-
ECS IM858
1.48
76,200
145
High
Very Low
12
45
-
ECS IM859
1.66
53,340
265
High
Very Low
12
45
-
ECS IM891
1.45
95,250
180
Very High
Very Low
10
45
-
* Single value is average Density
** Single value is maximum Resistivity
••• Single value is minimum Transverse Strength

 


 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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