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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

EPB2 Plastic Plain Bearings

EPB2 Plastic Plain Bearings

EPB2 Plastic Plain Bearings The solution of middle to low load application and economic effective requirement. It is also one of the low water absorbing materials. Continuous working temperature: -50?~100?; Suitable for medium load operation; Maintenance-free dry operation; For wet conditions;...

EPB2 Plastic Plain Bearings

The solution of middle to low load application and economic effective requirement. It is also one of the low water absorbing materials.

Continuous working temperature: -50?~100?;

Suitable for medium load operation;

Maintenance-free dry operation;

For wet conditions;

Low cost material for high quantities;

The Material Data Sheet


Typical Item

Standard

Unit

CSB-EPB2

   Density

ISO1183

g/cm³

1.29

   Color

Olive

   Dynamic friction /steel(dry)

0.07-.020

   Max. PV (dry)

N/mm²×m/s

0.5

   Max. roatating velocity

m/s

1.0

   Max. oscillating velocity

m/s

0.7

   Max. linear velocity

m/s

3.0

   Tensile strength

ISO527

MPa

80

   Compressive strength (Axial)

MPa

70

   E-module

ISO527

MPa

2400

   Max. static pressure of the surface, 20?

MPa

60

   Shore hardness

ISO868

D

75

   Continuous work temperature

?

-50/110

   Short-time work temperature

?

-50/150

   Thermal conductivity

ASTME1461

W/m×k

0.25

   Linear coef. of thermal expansion

ASTMD696

K-1×10-5

10

   Moisture absorption RH50/23?

ASTMD570

%

0.2

   Max. water absorption, 23?

%


0.4

   Flammability

UL94

HB

   Volume resistivity

IEC60093

Ocm

>1014

   Surface resistivity

IEC60093

O

>1015


PV Value of Bearings

The max PV value of the CSB-EPB2 series bearing is 0.5N/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 EPB2-1).

The Relation of Load, Speed and Temperature

CSB-EPB2 allows the Max static load of 60Mpa, The max compressive deformation rate under the max load is listed in Graph EPB2-2, The actual load capacity of bearing is slightly less than 60Mpa, The bearing load is variable against the speed and temperature, Fast speed (Vmax:1.0m/s) results into higher temperature (Tmax: 100?)which decreases the load capacity of the bearing. Please refer to the Graph EPB2-3 for such variation.

The Friction Factor,Wearing and shaft material

Friction Factor

Similar with most of the plastic bearings, the friction factor of CSB-EPB2 is increased along with the operation speed when the loading is stable (see Graph EPB2-4) and is decreased along with the loading increasing when the operation speed is stable (see Graph EPB2-5). From Graph EPB2-6, it shows the friction factor of CSB-EPB2 is variable against different shaft surface roughness. The recommended shaft surface roughness is Ra0.3~0.6.


CSB-EPB2
Dry
Grease
Oil
Water
Friction coef.µ
0.07~0.20
0.09
0.04
0.04


Wearing and shaft material

Graph EPB2-7 shows that CSB-EPB2 is rather suitable for hardened steel shaft and hardened chrome steel shaft under lower loading andGraph EPB2-7 shows that CSBEPB2 wearing feature is better for oscillation operation than of rotation operation.

Chemical Resistance

CSB-EPB2 is good at chemical resistance against weak acidic medium and various kinds of lubricants.

Water Absorbability

The water absorb rate of CSB-EPB2 is 0.2% under the atmospheric pressure while it is 0.4% when the material is immerged into water. With its low water absorbability, the material is suitable for humid environment applications.

UV Resistance

Disintegration could be possible for the material CSBEPB2 after long period of exposing under the UV ray and therefore the performance of the material will be reduced.

Bearing Installation

CSB-EPB2 The Interfit Tolerance

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 epb2 plastic plain bearings manufacturers and suppliers, and also a professional epb2 plastic plain bearings factory and company, we are always at your services.

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Zhejiang CSB Plastic Bearing Technology Co.,Ltd