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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

EPB19 Plastic Plain Bearings

EPB19 Plastic Plain Bearings

EPB19 Plastic Plain Bearings Wear resistance material for temperature up to 150 ?. The Features of the material is kept stable either at high or low temperature. Continuous working temperature: -40?~150?; Applicable for oscillating under high load; Maintenance-free dry operation; High pressure...

EPB19 Plastic Plain Bearings

Wear resistance material for temperature up to 150 ?. The Features of the material is kept stable either at high or low temperature.

Continuous working temperature: -40?~150?;

Applicable for oscillating under high load;

Maintenance-free dry operation;

High pressure resistance.

The Material Data Sheet

Typical Item

Standard

Unit

CSB-EPB19

   Density

ISO1183

g/cm³

1.46

   Color



Dark Grey

   Dynamic friction /steel(dry)



0.05-.020

   Max. PV (dry)


N/mm²×m/s

0.7

   Max. roatating velocity


m/s

1.2

   Max. oscillating velocity


m/s

0.8

   Max. linear velocity


m/s

4.0

   Tensile strength

ISO527

MPa

100

   Compressive strength (Axial)


MPa

60

   E-module

ISO527

MPa

3500

   Max. static pressure of the surface, 20?


MPa

60

  Shore hardness

ISO868

D

77

   Continuous work temperature


-40/150

   Short-time work temperature


-40/200

   Thermal conductivity

ASTME1461

W/m×k

0.25

   Linear coef. of thermal expansion

ASTMD696

K-1×10-5

5

   Moisture absorption RH50/23?

ASTMD570

%

1.3

   Max. water absorption, 23?
%2.5

   Flammability

UL94


HB

   Volume resistivity

IEC60093

Ocm

>1015

   Surface resistivity

IEC60093

O

>1012

PV Value of Bearings

The max PV value of the CSB-EPB19 series bearing is 0.7N/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 EPB19-1).

The Relation of Load, Speed and Temperature

CSB-EPB19 allows the Max static load of 70Mpa, The max compressive deformation rate under the max load is listed in Graph EPB19-2, The actual load capacity of bearing is slightly less than 70Mpa, The bearing load is variable against the speed and temperature, Fast speed (Vmax: 1.5m/s) results into higher temperature (Tmax: 150?) which decreases the load capacity of the bearing. Please refer to the Graph EPB19-3 for such variation.

The Friction Factor,Wearing and shaft material

Friction Factor
 Graph EPB19-4 shows that the friction factor of CSBEPB19 is not sensitive to the operation speed. Graph EPB19-5 tells that the friction factor of CSB-EPB19 is decreased along with the loading increasing and will be relatively stable when the loading reaches 20 Mpa upwards. Graph EPB19-6 shows that the friction factor of CSB-EPB19 is not sensitive to the shaft surface roughness. Therefore, it is recommended a proper shaft surface roughness in the range of Ra0.3~0.6.

CSB-EPB19
Dry
Grease
Oil
Water
Friction coef. µ
0.05~0.20
0.09
0.04
0.04


Wearing and shaft material

Graph EPB19-7 shows CSB-EPB19 friction factor is variable against different shaft materials in rotation operation under loading of 2Mpa. Testing indicates that hardened shaft is best for rotation operation of CSBEPB19. The operation condition is better when CSBEPB19 is used against hardened steel shafts, high speed steel shaft and hardened chrome steel shaft under rotation operation. Graph EPB19-8x describes that hardened chrome steel is better for this material under high loading operation where as long as the increasing of the loading, the wearing of the bearing is relatively stable.

Chemical Resistance

CSB-EPB19 is good at chemical resistance against mild base, weak acidic medium and various kinds of lubricants.

Water Absorbability

The water absorb rate of CSB-EPB19 is 1.3% under the atmospheric pressure while it is 2.5% when the material is immerged into water. The application environment has to be considered because of its water absorb properties.

UV Resistance

The color of CSB-EPB19 could be dimmed when it is exposed into the UV ray. The material performance stays stable.

Bearing Installation

CSB-EPB19 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 epb19 plastic plain bearings manufacturers and suppliers, and also a professional epb19 plastic plain bearings factory and company, we are always at your services.

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Zhejiang CSB Plastic Bearing Technology Co.,Ltd