EPB14 Plastic Plain Bearings

EPB14 Plastic Plain Bearings
Product Details

EPB14 Plastic Plain Bearings

Econimic solution for high speed application. Under the temperature of 260?, the material can still have good chemical resistance feature. It is not suitable for high load application. When the temperature is higher than 135?, additional location ring is neccessary.

Continuous working temperature: -200?~260?;

Maintenance-free dry operation;

Low friction requirement;

High surface speed under low load;

The Material Data Sheet

Typical Item

Standard

Unit

CSB-EPB14

   Density

ISO1183

g/cm³

2.13

   Color



Black

   Dynamic friction /steel(dry)



0.08-0.18

   Max. PV (dry)


N/mm²×m/s

0.3

   Max. roatating velocity


m/s

2.0

   Max. oscillating velocity


m/s

1.4

   Max. linear velocity


m/s

5

   Tensile strength

ISO527

MPa

13

   Compressive strength (Axial)


MPa

8

   E-module

ISO527

MPa

790

   Max. static pressure of the surface, 20?


MPa

8

  Shore hardness

ISO868

D

65

   Continuous work temperature


-200/260

   Short-time work temperature


-200/310

   Thermal conductivity

ASTME1461

W/m×k

0.25

   Linear coef. of thermal expansion

ASTMD696

K-1×10-5

12

   Moisture absorption RH50/23?

ASTMD570

%

<0.1

   Max. water absorption, 23?
%<0.1

   Flammability

UL94


V0

   Volume resistivity

IEC60093

Ocm

>104

   Surface resistivity

IEC60093

O

>103

PV Value of Bearings

The max PV value of the CSB-EPB14 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 EPB14-1).

The Relation of Load, Speed and Temperature

CSB-EPB14 allows the Max static load of 8Mpa, The max compressive deformation rate under the max load is listed in Graph EPB14-2, The actual load capacity of bearing is slightly less than 8Mpa, The bearing load is variable against the speed and temperature, Fast speed (Vmax: 2.0m/s) results into higher temperature (Tmax: 260?) which decreases the load capacity of the bearing. Please refer to the Graph EPB14-3 for such variation.

The Friction Factor,Wearing and shaft material

Friction Factor 
 The coefficient of friction decreases like the wear resistance with increasing surface speed. In contrast, a higher surface speed has less impact on the coefficient of friction of CSB-EPB14 bearing (Graph EPB14-4 and EPB14-5). From the figure EPB14-6, we could see that the friction factor is variable against the changing of shaft roughness. The recommended shaft roughness is Ra0.3~0.5.

CSB-EPB14
Dry
Grease
Oil
Water
Friction coef. µ
0.03~0.15
0.09
0.04
0.04


Wearing and shaft material

The shaft material is an important media for the bearing wearing but CSB-EPB14 is suitable for almost all kinds of shaft materials. Graph EPB14-7 shows that the wearing feature of CSB-EPB14 is excellent when the shaft material are hardened chrome steel or hardened steel. Graph EPB14-7 shows that the material CSB-EPB14 is most suitable for the rotation operation.

Chemical Resistance

Chemical Resistance of CSB-EPB14 is very good. It can work well in the heavy acid of 65%.

Water Absorbability

The water absorb rate of CSB-EPB14 is less than 0.1% under the atmospheric pressure while it is less than 0.1% when the material is immerged into water. The material performance and dimensions of the material is stabilized for the applications under humid environment or even in the water.

UV Resistance

CSB-EPB14 can maintain its performance to be stable even exposed in the UV ray for long period.

Bearing Installation

CSB-EPB14 The Interfit Tolerance

Diameter mm

The Interfit Tolerance 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

CSB Plastic is one of the leading China epb14 plastic plain bearings manufacturers and suppliers, and also a professional epb14 plastic plain bearings factory and company, we are always at your services.

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