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Zhejiang CSB Plastic Bearing
Technology Co.,Ltd

Address: No.6, Fenhu Road, Huimin Sub-district, Jiashan, 
Zhejiang, China

Tel: +86-573-84185528

E-mail: oversea@csb-ep.com

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Plastic Bearings

EPB9 Plastic Plain Bearings

EPB9 Plastic Plain Bearings

EPB9 Plastic Plain Bearings Self-lubricated material with good elctricity conductivity.Mainly used with the high load and electricity conductive evironment. Continuous working temperature: -40?~130?; Specially use for static electricity existing environment; Suitable for low speed operation;...

EPB9 Plastic Plain Bearings

Self-lubricated material with good elctricity conductivity.Mainly used with the high load and electricity conductive evironment.

Continuous working temperature: -40?~130?;

Specially use for static electricity existing environment;

Suitable for low speed operation;

Higher load capacity.

The Material Data Sheet

Typical Item

Standard

Unit

CSB-EPB9

   Density

ISO1183

g/cm³

1.24

   Color



Black

   Dynamic friction /steel(dry)



0.10-0.40

   Max. PV (dry)


N/mm²×m/s

0.3

   Max. roatating velocity


m/s

0.8

   Max. oscillating velocity


m/s

0.6

   Max. linear velocity


m/s

3.0

   Tensile strength

ISO527

MPa

250

   Compressive strength (Axial)


MPa

100

   E-module

ISO527

MPa

11000

   Max. static pressure of the surface, 20?


MPa

105

  Shore hardness

ISO868

D

84

   Continuous work temperature


-40/130

   Short-time work temperature


-40/180

   Thermal conductivity

ASTME1461

W/m×k

0.6

   Linear coef. of thermal expansion

ASTMD696

K-1×10-5

11

   Moisture absorption RH50/23?

ASTMD570

%

1.8

   Max. water absorption, 23?
%8.4

   Flammability

UL94


HB

   Volume resistivity

IEC60093

Ocm

>103

   Surface resistivity

IEC60093

O

>103

PV Value of Bearings

The max PV value of the CSB-EPB9 series bearing is 0.3N/ mm2*m/s which determines the load capacity of bearing is inversely proportional to the speed. Please refer to the chart for more detailed information (Graph EPB9-1).

The Relation of Load, Speed and Temperature

CSB-EPB9 allows the Max static load of 105Mpa, The max compressive deformation rate under the max load is listed in Graph EPB9-2, The actual load capacity of bearing is slightly less than 105Mpa, The bearing load is variable against the speed and temperature, Fast speed (Vmax: 0.8m/s) results into higher temperature (Tmax: 130?) which decreases the load capacity of the bearing. Please refer to the Graph EPB9-3 for such variation.

The Friction Factor,Wearing and shaft material

Friction Factor 
Graph EPB9-4 shows that the friction factor of CSB-EPB9 is much higher than those of other materials because the electronic conductive fiber is embedded into the bearing material. It is induced that the friction performance will be better when the bearing is lubricated. Graph EPB9-5 shows that the friction factory is decreasing along with the loading increasing and Graph EPB9-6 shows that the friction factor is increasing along with the shaft roughness increasing when the shaft roughness is between Ra0.1 to Ra0.5. This effecting will be less when the shaft roughness is between Ra0.5 to Ra1.6.

CSB-EPB9
Dry
Grease
Oil
Water
Friction coef. µ
0.10~0.40
0.09
0.04
0.04


Wearing and shaft material

Graph EPB9-7 shows the different results of the material against different shaft materials. It induces that the bearing material is good for hard chrome steel shaft under low loading operation condition and good for hardened carbon steel shaft under high loading rotation operation.

Chemical Resistance

CSB-EPB9 is good at chemical resistance against weak acidic medium and various kinds of lubricants.

Water Absorbability

The water absorb rate of CSB-EPB9 is 1.5% under the atmospheric pressure while it is 7.6% when the material is immerged into water. The application environment has to be considered because of its water absorb properties.

UV Resistance

When CSB-EPB9 is exposed into the UV ray, the material performance stays stable.

Bearing Installation

Diameter mm

Tolerance after fit E10

Fit Housing H7

Fit Shaft h9

>0~3

+0.014~+0.054

0~+0.010

0~-0.025

>3~6

+0.020~+0.068

0~+0.012

0~-0.030

>6~10

+0.025~+0.083

0~+0.015

0~-0.036

>10~18

+0.032~+0.102

0~+0.018

0~-0.043

>18~30

+0.040~+0.124

0~+0.021

0~-0.052

>30~50

+0.050~+0.150

0~+0.025

0~-0.062

>50~80

+0.060~+0.180

0~+0.030

0~-0.074

>80~120

+0.072~+0.212

0~+0.035

0~-0.087

>120~180

+0.085~+0.245

0~+0.040

0~-0.100

CSB Plastic is one of the leading China epb9 plastic plain bearings manufacturers and suppliers, and also a professional epb9 plastic plain bearings factory and company, we are always at your services.

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