EPB12 Plastic Plain Bearings

EPB12 Plastic Plain Bearings
Product Details

EPB12 Plastic Plain Bearings

Good wear resistance material suitable for high load and oscilation motions. It is an economic solution for high load applications.

Continuous working temperature: -40?~130?;

Suitable for high load operation;

Good for oscillating operation;

Good impact resistance;

Comtainment prevention ability.

The Material Data Sheet

Typical Item

Standard

Unit

CSB-EPB12

   Density

ISO1183

g/cm³

1.40

   Color



Black

  Dynamic friction /steel(dry)



0.05-.020

  Max. PV (dry)


N/mm²×m/s

0.6

  Max. roatating velocity


m/s

1.0

   Max. oscillating velocity


m/s

0.7

   Max. linear velocity


m/s

5.0

   Tensile strength

ISO527

MPa

115

   Compressive strength (Axial)


MPa

95

   E-module

ISO527

MPa

4300

   Max. static pressure of the surface, 20?


MPa

100

  Shore hardness

ISO868

D

83

   Continuous work temperature


-40/130

   Short-time work temperature


-40/170

   Thermal conductivity

ASTME1461

W/m×k

0.25

   Linear coef. of thermal expansion

ASTMD696

K-1×10-5

5

   Moisture absorption RH50/23?

ASTMD570

%

0.9

   Max. water absorption, 23?
%4.9

   Flammability

UL94


HB

   Volume resistivity

IEC60093

Ocm

>1015

   Surface resistivity

IEC60093

O

>1012

PV Value of Bearings

The max PV value of the CSB-EPB12 series bearing is 0.6N/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 EPB12-1).

Relation of Load, Speed and Temperature

CSB-EPB12 allows the Max static load of 100Mpa, The max compressive deformation rate under the max load is listed in Graph EPB12-2, The actual load capacity of bearing is slightly less than 100Mpa, The bearing load is variable against the speed and temperature, Fast speed (Vmax: 1.0m/s) results into higher temperature (Tmax: 130?) which decreases the load capacity of the bearing. Please refer to the Graph EPB12-3 for such variation.



The Friction Factor,Wearing and shaft material

Friction Factor
 Graph EPB12-4 shows that the friction factor of CSBEPB12 is not considerably affected by the operation speed when the loading is stable. At the meantime, Graph EPB12-5 shows that the friction factor of CSBEPB12 is not considerably affected by the loading when the operation speed is stable. This bearing is the only typical material whose friction factor is not sensitive to the operation speed and loading. Graph EPB12-6 tells that the fiction factor of CSB-EPB12 will not be affected by the shaft roughness when the shaft roughness is better than Ra0.4. The recommended Shaft

CSB-EPB12
Dry
Grease
Oil
Water
Friction coef. µ
0.05~0.20
0.09
0.04
0.04


Wearing and shaft material

Graph EPB12-7 and Graph EPB12-8 tells that CSBEPB16 is suitable for both hard chrome steel shaft and hardened steel shaft. Graph EPB12-8 shows that the wearing feature of CSB-EPB16 is better in oscillation operation than in rotation operation. Hardened chrome steel shaft and hardened steel shaft is the better choice under oscillation operation and hardened steel shaft and hardened chrome steel shaft is the better choice under rotation operation.

Chemical Resistance

CSB-EPB12 is good at chemical resistance against weak acidic medium and various kinds of lubricants.

Water Absorbability

The water absorb rate of CSB-EPB12 is 0.9% under the atmospheric pressure while it is 4.9% when the material is immerged into water. The application environment has to be considered because of its water absorb properties.

UV Resistance

CSB-EPB12 can become brittle and lost its impact resistance when it is exposed into UV ray for a certain period of time.

Bearing Installation

CSB-EPB12 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 epb12 plastic plain bearings manufacturers and suppliers, and also a professional epb12 plastic plain bearings factory and company, we are always at your services.

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