go to text

Nippon Pillar Industry Co., Ltd.
Inquiry

Carbon Bearings

Product Introduction

We are the only seal manufacturer in the world that produces carbon in-house.
The general characteristics of carbon are "small thermal expansion", "large thermal conduction", "strong against thermal shock", "high heat resistant temperature", "self-lubricating", "light", and "light". It has excellent chemical resistance. ”
We have various grades of carbon as shown below, and we use them properly according to the specifications and applications.
We are also researching and developing higher performance carbon.

Example of using carbon bearings

Our company, which researches and develops carbon in-house, possesses carbon with various characteristics. We can also handle products with short delivery times by controlling our own processes. If possible, we also accept trial production.

TANKEN CARBON PROPERTIES

Material code
Composition
Permeability
proportion
Hardness (Hs)
Flexural strength
(N / mm2）
Compression strength
(N / mm2）
B11*
Carbon graphic
Non-impregnation
Penetration
1.68
70
55
135
B30*
Carbon graphic
Resin impregnation
Impervious
1.77
75
65
165
B40*
Carbon graphic
Resin impregnation
Impervious
1.77
75
65
165
C10*
Carbonaceous
Non-impregnation
Penetration
1.72
90
63
165
C20*
Carbonaceous
Non-impregnation
Impervious
1.77
105
73
250
C30*
Carbonaceous
Resin impregnation
Impervious
1.77
100
73
250
C40*
Carbonaceous
Resin impregnation
Impervious
1.77
100
73
250
E11*
Carbonaceous
Non-impregnation
Penetration
1.45
105
80
250
F10*
Carbonaceous
Impregnation
Penetration
1.75
105
93
350
F40
Carbonaceous
Resin impregnation
Impervious
1.85
110
103
400
F60*
Carbon graphic
Non-impregnation
Minor
1.78
100
90
280
F70*
Carbon graphic
Non-impregnation
Impervious
1.85
106
103
300
F90*
Carbon graphic
Resin impregnation
Impervious
1.83
110
110
330
V21
resin bonds
Penetration
1.85
20
22
14
V23
resin bonds
Impervious
1.95
30
30
1.9Note) 4
Material code
Young's modulus
(× 103N /
mm2）
Poisson's ratio
Coefficient of thermal expansion
(× 10-6 / K)
Thermal conductivity
(W / m ･ K)
specific heat
(× 103J / Kg ・ K)
In the air
Eur-lex.europa.eu eur-lex.europa.eu
(℃)
B11*
10
0.2
4
12
0.7
350
B30*
12
0.2
5
15
0.7
250
B40*
12
0.2
5
15
0.7
250
C10*
14
0.2
5
4
0.7
350
C20*
17
0.2
6
5
0.7
350
C30*
17
0.2
6
5
0.7
250
C40*
17
0.2
6
5
0.7
250
E11*
23
0.2
4
5
0.7
350
F10*
40
0.3
6
5
0.7
350
F40
40
0.3
7
7
0.7
250
F60*
18
0.2
6
4
0.7
350
F70*
20
0.3
7
7
0.7
350
F90*
20
0.3
7
4
0.7
250
V21
1.9Note) 4
-
// 23.0
⊥ 33.0Note) 5
4
-
230
V23
2.2
-
// 23.0
⊥ 33.0Note) 5
4
-
200
Note 4) The stress when the strain amount is 5% (the stress at which, when at 20 ° C, 5% strain occurs) is displayed.
Note 5) ⊥: Axial direction, //: Radial direction.
Carbon with excellent wear resistance
C20・C40・E11・F10・F70・F90

Carbon with excellent blister resistance
C20 / F70 / F90

Carbon with excellent dry resistance
F60 / F70 / F90 / V21 / V23

Carbon with excellent corrosion resistance
C20 / F70 / F90
TANKEN SEAL SEIKO CO., LTD.
146-0093
Tokyo, Ohta City, Yaguchi 3-14-15
TEL. +03-3750-2151
FAX: +03-3750-5171

Back to TOP