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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

EPB2D Plastic Plain Bearings

EPB2D Plastic Plain Bearings

EPB2D Plastic Plain Bearings The combination of middle to low load and low speed application requirement. It is a meterial without PTFE embedded for the low cost and big quantity demanding. Continuous working temperature: -40?~80?; ? Very common; suitable for most of average and low load;...

EPB2D Plastic Plain Bearings

The combination of middle to low load and low speed application requirement. It is a meterial without PTFE embedded for the low cost and big quantity demanding.

Continuous working temperature: -40?~80?;

? Very common; suitable for most of average and low load;

Maintenance-free dry operation;

Light wear against different shaft materials;

Low friction.

The Material Data Sheet


Typical Item

Standard

Unit

CSB-EPB2D

   Density

ISO1183

g/cm³

1.40

   Color

Green

   Dynamic friction /steel(dry)

0.05-.025

   Max. PV (dry)

N/mm²×m/s

0.3

   Max. roatating velocity

m/s

1.2

   Max. oscillating velocity

m/s

0.8

   Max. linear velocity

m/s

3.0

   Tensile strength

ISO527

MPa

75

   Compressive strength (Axial)

MPa

60

   E-module

ISO527

MPa

2000

   Max. static pressure of the surface, 20?

MPa

25

  Shore hardness

ISO868

D

74

   Continuous work temperature

?

-40/80

   Short-time work temperature

?

-40/120

   Thermal conductivity

ASTME1461

W/m×k

0.25

   Linear coef. of thermal expansion

ASTMD696

K-1×10-5

11

   Moisture absorption RH50/23?

ASTMD570

%

0.2

  Max. water absorption, 23? % 1.1

  Flammability

UL94


HB

   Volume resistivity

IEC60093

Ocm

>1013

   Surface resistivity

IEC60093

O

>1012


PV Value of Bearings

The max PV value of the CSB-EPB2D 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 EPB2D-1).

The Relation of Load, Speed and Temperature

CSB-EPB2D allows the Max static load of 25Mpa, The max compressive deformation rate under the max load is listed in Graph EPB2D-2, The actual load capacity of bearing is slightly less than 25Mpa, The bearing load is variable against the speed and temperature, Fast speed (Vmax: 1.2m/s) results into higher temperature (Tmax:80?) which decreases the load capacity of the bearing.Please refer to the Graph EPB2D-3 for such variation.

The Friction Factor,Wearing and shaft material

Friction Factor

Graph EPB2D-4 shows that the friction factor of CSBEPB2D is initially increased along with the operation speed increasing when the loading is stable but when the speed reaches over 0.25m/s, it is decreased along with the operation speed increasing. Graph EPB2D-5 shows that the friction factor of CSB-EPB2D is decreasing along with the loading increasing when the operation speed is stable. Graph EPB2D-6 shows the friction factor of CSBEPB2D is sensitive to the shaft roughness. The best shaft roughness for this material is Ra0.3~0.6.


CSB-EPB2D
Dry
Grease
Oil
Water
Friction coef. µ
0.05~0.25
0.09
0.04
0.04


Wearing and shaft material

Graph EPB2D-7 and Graph EPB2D-8 shows that the hardened chrome steel shaft is good for CSB-EPB2D bearings under lower loading and stainless steel shaft is better when the loading is over 1.0Mpa. Graph EPB2D-8 shows hardened steel shaft is recommended in rotation operation but hardened chrome steel shaft is recommended in oscillation operation.

Chemical Resistance

CSB-EPB2D is good at chemical resistance against mild base, weak acidic medium and various kinds of lubricants.

Water Absorbability

The water absorb rate of CSB-EPB2D is 0.2% under the atmospheric pressure while it is 1.1% when the material is immerged into water. With its low water absorbability, the material is suitable for humid environment applications. 

UV Resistance

The color of CSB-EPB2D will become lighter when it is exposed into the UV ray. The hardness, Compressive strength and wear resistance of the material is also stable under such condition.

Bearing Installation

CSB-EPB2D 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 epb2d plastic plain bearings manufacturers and suppliers, and also a professional epb2d plastic plain bearings factory and company, we are always at your services.

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Zhejiang CSB Plastic Bearing Technology Co.,Ltd