Property Data｜Carbon Brush｜Toyo Tanso Co., Ltd Products website

Carbon Brush

Because of the sliding contact they make, motor brushes play an important part in flowing electric current between stationary and rotary parts. Brush performance greatly determines the performance of rotary equipment such as motors and generators, therefore brushes must be carefully selected. Toyo Tanso's brushes are active across a broad span of industry, centered primarily on small brushes for home appliances and power tools.

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Electro Graphite

Composition	Grade	Bulk Density	Hardness	Electrical resistivity	Flexural strength	Coefficient of friction	Contact voltage drop	Max. peripheral speed	Max. current density
Composition	Grade	g/cm³	HSC	μΩ・m	MPa	Coefficient of friction	V	m/s	A/cm²
Electro Graphite	401	1.68	18	9	10	M	M	30	10
	502	1.77	51	11	37	Ｍ	Ｍ	25	10
	503	1.68	46	13	29	M	M	30	10
	176	1.62	28	14	16	M	M	45	12
	BZ-229	1.60	23	22	11	M	M	40	12
	BZ-256	1.61	28	19	14	M	M	40	12
	213	1.61	32	23	16	M	M	40	12
	321	1.74	62	34	31	M	M	35	10
	TH-03	1.75	68	40	35	M	M	35	10
	351A	1.63	49	47	22	H	M	40	10
	641	1.64	59	75	12	H	M	40	10
Composition	Grade	Bulk Density	Hardness	Electrical resistivity	Flexural strength	Coefficient of friction	Contact voltage drop	Max. peripheral speed	Max. current density
Composition	Grade	g/cm³	HSC	μΩ・m	MPa	Coefficient of friction	V	m/s	A/cm²
Graphite	402	1.71	24	10	18	M	M	25	10
	801	1.65	30	35	19	M	M	45	15
	TR-52	1.74	30	14	16	M	M	40	12
	TR-19	1.51	33	200	19	M	M	40	12

＊Coefficient of friction : H...0.25～,　M...0.20～0.25　（measurement condition/ Slip ring : Copper,　Speed : 9.3m/s,　Current : 0A）
＊Contact voltage drop : M...0.5～1.0V/pc　（measurement condition/Slip ring : Copper,　Speed : 9.3m/s,　Current : DC10A/cm²）
＊The colored grades use imported materials.

Copper Graphite

Composition	Grade	Bulk Density	Hardness	Electrical resistivity	Flexural strength	Coefficient of friction	Contact voltage drop	Max. peripheral speed	Max. current density
Composition	Grade	g/cm³	HSC	μΩ・m	MPa	Coefficient of friction	V	m/s	A/cm²
Copper Graphite I	M-90	6.30	15	0.32	108	M	VL	20	25
	M-1T	6.19	13	0.27	108	M	VL	22	22
	M-2T	5.70	15	0.50	80	M	VL	25	20

	M-1	5.41	12	0.08	42	Ｌ	VL	30	25
	M-1F	5.30	18	0.15	49	Ｌ	VL	30	25
	M-2H	4.93	13	0.10	34	Ｌ	VL	30	20
	M-2HF	4.80	18	0.33	44	M	VL	30	20
	M-2	4.40	15	0.50	29	L	VL	30	20
	M-2F	4.35	15	0.50	44	M	VL	30	20
	M-3H	4.04	16	0.70	29	M	VL	30	18
	M-3HF	4.05	20	0.60	44	M	VL	30	18
	M-3	3.78	17	1.00	29	L	VL	30	18
	M-4	3.48	17	2.00	25	L	L	30	18
	M-550	2.96	25	2.50	39	M	L	35	15
	M-750	2.32	23	6.00	32	M	L	35	15
	788	2.02	23	9.00	23	M	M	45	12
	M-2TB	5.74	12	0.48	65	M	VL	25	20
	M‐1B	5.30	10	0.10	43	Ｌ	VL	30	25
	M-2B	4.34	13	0.28	31	L	VL	30	20
	M-4B	3.43	20	1.30	32	L	L	30	18
	M-1C	5.15	13	0.10	59	L	VL	30	25
	M-2C	4.35	13	0.32	34	L	VL	30	20
	M-4C	3.45	20	1.10	45	L	L	30	18
	M-550C	2.96	25	2.50	39	M	L	35	15
Composition	Grade	Bulk Density	Hardness	Electrical resistivity	Flexural strength	Coefficient of friction	Contact voltage drop	Max. peripheral speed	Max. current density
Composition	Grade	g/cm³	HSC	μΩ・m	MPa	Coefficient of friction	V	m/s	A/cm²
Copper Graphite Ⅱ	MF-302	2.65	18	3.00	23	M	L	30	20
	MF-501	3.00	20	0.90	28	L	L	30	20
	MF-101	2.90	18	2.20	28	M	L	30	20
	MF-202	2.05	10	38.0	23	H	M	30	15
	MF-203	2.05	10	30.0	23	L	M	30	15
	MF-301	2.40	15	10.0	23	M	M	30	20
	MF-401	2.67	18	10.0	21	M	M	30	20
	MF-204	3.78	15	0.30	40	M	L	30	25
	MF-205	3.00	20	0.80	28	M	L	30	20
	MF-701	2.26	18	10.0	30	M	M	30	20
	MF-201	2.25	10	30.0	23	M	M	30	15
	MF-601	2.05	10	50.0	23	M	M	30	15
	MF-1001	2.45	20	5.0	28	L	M	30	20
Composition	Grade	Bulk Density	Hardness	Electrical resistivity	Flexural strength	Coefficient of friction	Contact voltage drop	Max. peripheral speed	Max. current density
Composition	Grade	g/cm³	HSC	μΩ・m	MPa	Coefficient of friction	V	m/s	A/cm²
Copper GraphiteⅢ	TM-08	1.78	37	400	26	L	L	30	20
	MK-01	2.07	17	65	38	L	L	40	20
	MK-10	2.33	18	6	43	L	L	40	20
	MK-11	2.43	16	3.5	42	L	L	40	20
	MK-12	2.33	18	6.5	45	L	L	40	20

＊Coefficient of friction : H...0.25～　　M...0.20～0.25　　L...～0.20　（measurement condition/ Slip ring : Copper,　Speed : 9.0m/s,　current : 0A）
＊Contact voltage drop : M...0.5～1.0V/pc　　L...0.25～0.5V/pc　　VL...0.25V/pc and below
（measurement condition/Slip ring : Copper, Speed : 9.0m/s,　Current : DC10A/cm²）

Silver Graphite

Composition	Grade	Bulk Density	Hardness	Electrical resistivity	Flexural strength	Coefficient of friction	Contact voltage drop	Max. peripheral speed	Max. current density
Composition	Grade	g/cm³	HSC	μΩ・m	MPa	Coefficient of friction	V	m/s	A/cm²
Silver Graphite	SX-50	3.20	15	2.70	29	M	VL	20	12
	SX-70	4.45	15	0.25	40	M	VL	20	15
	SX-90	6.85	18	0.05	84	M	VL	20	22

＊Coefficient of friction ： M...0.20～0.25 （measurement condition/Slip ring : Copper, Speed : 9.0m/s, Current : 0A）
＊Contact voltage drop ： VL...0.25V/pc and below (measurement condition/Slip ring : Copper, Speed : 9.0m/s, Current : DC10A/cm²)

Resin bonded Graphite

Composition	Grade	Bulk Density	Hardness	Electrical resistivity	Flexural strength	Coefficient of friction	Contact voltage drop	Max. speed	Max. current density
Composition	Grade	g/cm³	HSC	μΩ・m	MPa	Coefficient of friction	V	m/s	A/cm²
Resin bonded Graphite	X-03	1.50	12	200	15	Ｌ	Ｈ	54	20
	X-09	1.52	14	260	15	Ｌ	Ｈ	54	20
	X-17	1.54	15	330	18	Ｌ	Ｈ	54	20
	X-72	1.47	19	380	14	Ｌ	Ｈ	48	20
	X-88	1.52	14	360	20	Ｌ	Ｈ	54	20
	X-05	1.48	15	400	18	Ｌ	Ｈ	50	20
	X-10	1.52	15	270	17	Ｌ	Ｈ	50	20
	X-80	1.51	17	360	22	Ｌ	Ｈ	48	20
	X-13	1.48	19	700	22	Ｌ	Ｈ	50	15
	X-24	1.53	16	440	28	Ｌ	Ｈ	50	15
	X-26	1.53	23	340	23	Ｌ	Ｈ	50	15
	X-85	1.48	20	400	14	Ｌ	Ｈ	48	20
	X-89	1.53	19	350	21	Ｌ	Ｈ	48	20
	X-93	1.50	18	640	27	Ｌ	Ｈ	50	15
	X-11	1.35	15	1100	14	Ｌ	VＨ	54	13
	X-91	1.35	15	1100	17	Ｌ	ＶＨ	54	13
	X-94	1.36	14	1200	17	Ｌ	ＶＨ	54	13
	X-04	1.36	17	1600	11	Ｌ	ＶＨ	54	10
	X-14	1.35	15	1100	17	L	VH	54	10
	X-78	1.51	17	370	22	Ｌ	Ｈ	48	20
	X-23	1.44	19	650	17	L	H	50	15
	X-73	1.52	24	920	24	Ｌ	ＶＨ	40	13
	B-2	1.75	25	390	24	Ｌ	Ｈ	25	8

＊Coefficient of friction ： L...～0.20 (measurement condition/Current density : AC10A/cm², Speed : 20m/s, Spring pressure : 50kPa)
＊Contact voltage drop ： VH...3.0V/pc and over H...2.0～3.0V/pc
(measurement condition/Current density : AC10A/cm², Speed : 20m/s, Spring pressure : 50kPa)

Carbon Graphite

Composition	Grade	Bulk Density	Hardness	Electrical resistivity	Flexural strength	Coefficient of friction	Contact voltage drop	Max. peripheral speed	Max. current density
Composition	Grade	g/cm³	HSC	μΩ・m	MPa	Coefficient of friction	V	m/s	A/cm²
Carbon Graphite	C-3	1.62	35	240	24	Ｌ	Ｈ	35	13
	107	1.62	34	100	29	Ｌ	Ｈ	35	13
	113	1.58	37	290	27	Ｌ	Ｈ	35	13
	130	1.74	27	70	20	L	H	35	20
	C-1	1.49	30	330	13	Ｌ	Ｈ	35	12
	TX-174	1.55	36	390	24	Ｌ	Ｈ	35	18
	105S	1.55	36	390	24	Ｌ	Ｈ	35	18
	108	1.55	36	390	24	Ｌ	Ｈ	35	18
	118	1.64	34	390	23	Ｌ	Ｈ	35	18
	129	1.64	34	620	20	Ｌ	Ｈ	35	18
	111	1.61	37	600	23	Ｍ	ＶＨ	35	13
	114	1.62	35	900	20	Ｍ	ＶＨ	35	13
	122	1.62	42	840	22	Ｍ	ＶＨ	35	13
	124	1.60	47	790	26	Ｍ	ＶＨ	35	13
	127	1.53	33	850	21	Ｍ	ＶＨ	35	13
	119	1.59	44	1300	20	Ｍ	ＶＨ	35	13
	B-1	1.75	47	450	13	Ｌ	Ｈ	25	8
	C-2	1.55	44	660	17	Ｌ	Ｈ	25	10
	C-2N	1.58	18	660	14	Ｌ	Ｈ	25	10
	FX-08	1.66	32	590	19	Ｌ	Ｈ	25	10
	Composition	Grade	Bulk Density	Hardness	Electrical resistivity	Flexural strength	Coefficient of friction	Contact voltage drop	Max. peripheral speed	Max. current density
	Composition	Grade	g/cm³	HSC	μΩ・m	MPa	Coefficient of friction	V	m/s	A/cm²

＊Coefficient of friction ： M...0.20.～0.25 L...0.20 and below
(measurement condition/Current density : AC10A/cm², Speed : 20m/s, Spring pressure : 50kPa)
＊Contact voltage drop ： VH...3.0V/pc and over H...2.0～3.0V/pc
(measurement condition/Current density : AC10A/cm², Speed : 20m/s, Spring pressure : 50kPa)
The max speed and current density vary depending on the commutator and slip ring condition and use condition.
The above applications are some examples. Please contact our sales department to consult on selecting the most appropriate grade.

Property Data