CSB塑料轴承产品
banner
banner
banner
CSB塑料轴承产品05
CSB塑料轴承产品04
EPB6 Plastic plain bearings

Product properties

● It is a wear resistance material for working temperature lower than 80℃. The application is for the condition where the shaft hardness is not critical. The white color of the material is also commonly used for most of the clearing and packing machineries 

● Continuous working temperature: -40℃/+80℃

● No special requirement on the surface roughness

● Low friction coefficient

● Applicable for soft shaft


Material properties 

Standard

Unit

CSB-EPB6

General properties

Color

-

-

White

Density 

ISO1183

g/cm3

1.45

Max. moisture absorption, 50%RH

ISO62

%

0.3

Max. water absorption

ISO62

%

1.2

Coefficient of sliding friction(steel)

ITS025

µ

0.05-0.18

Max. PV value

ITS026

N/mm2×m/s

0.30

Mechanical properties

Flexural modulus

ISO178

MPa

2300

Flexural strength

ISO178

MPa

60

Max. static load

ITS027

MPa

35

Max. dynamic load

ITS028

MPa

14

Shore hardness

ISO868

D

74

Physical and thermal properties

Long-term application temperature

ITS029

+80

Short-term application temperature 

ITS029

+120

Lowest application temperature

ITS029

-40

Thermal conductivity

ISO22007

W/m/K

0.20

Coefficient of thermal expansion 

ISO11359

K-1×10-5

10

Flammability

UL94

Class

HB

Electrical properties 

Volume resistance

IEC60093

Ω·cm

>1013

Surface resistance 

IEC60093

Ω

>1012

*ITS: CSB company's internal test standards.   **Test temperatures are 23℃ unless otherwise stated.

EPB6 Plastic plain bearings
Dimensions

 PV value

The max PV value of the CSB-EPB6 plastic bearings 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 EPB6-1).

EPB6_01-Plastic plain bearings PV value.jpg

▊ Load, speed and temperature

CSB-EPB6 allows the Max static load of 35Mpa, The max compressive deformation rate under the max load is listed in Graph EPB6-2, The actual load capacity of bearing is slightly less than 35Mpa, The bearing load is variable against the speed and temperature, Fast speed (Vmax: 1.0m/s) results into higher temperature (Tmax: 80℃) which decreases the load capacity of the bearing. Please refer to the Graph EPB6-3 for such variation.

EPB6_02-Plastic plain bearings load.jpgEPB6_03-Plastic plain bearings load and tepmerature.jpg

▊ Friction factor, wear and shaft material

 Friction factor 

Graph EPB6-4 shows the CSB-EPB6 friction factor is slightly increased as long as the operation speed increasing when the loading is relatively stable. Graph EPB6-5 shows the friction factor of CSB-EPB6 is continuing decreasing along with the loading increasing when the operation speed is relatively stable. From Graph EPB6-6, it is found that the friction factor is also variable against the shaft surface roughness. The recommended shaft surface roughness is Ra0.3~0.6. 

CSB-EPB6
Dry
Grease
Oil
Water
Friction coef. μ
0.05~0.18
0.09
0.04
0.04



EPB6_04-Plastic plain bearings friction and speed.jpgEPB6_05-Plastic plain bearings friction and load.jpgEPB6_06-Plastic plain bearings friction and surface roughness of shaft.jpg

 Wearing and shaft material

Graph EPB6-7 and Graph EPB6-8 describes CSB-EPB6 bearing is suitable for hardened steel and hardened chrome steel shaft. CSB-EPB6 is very similar during its rotation operation and oscillation operation so that this material is suitable for most of the applications.

EPB6_07-Plastic plain bearings wear and shaft materials.jpgEPB6_08-Plastic plain bearings wear and load.jpg

▊ Chemical resistance

CSB-EPB6 is good at chemical resistance against mild base, weak acidic medium and various kinds of lubricants.

 Water absorption

The moisture absorption of CSB-EPB6 plastic bearings is 0.3% in standard atmosphere. The max. water absorption is 1.2% in water. These values are so low that design changes due to absorption are only necessary in extreme applications.

EPB6_09-Plastic plain bearings moisture absorption.jpg

 UV resistance

CSB-EPB6 can maintain its color unchanged when it is exposed into the UV ray. The hardness, Compressive strength and wear resistance of the material is also stable under such condition.


▊ Installation tolerances

CSB-EPB6 Tolerances after pressfit

Diameter [mm]
CSB-EPB6 E10 [mm]
Housing H7 [mm]
Shaft h9 [mm]
>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-EPB® Plastic Bearings Finder[V2.0] is based on the analysis and calculation of a large number of test data in CSB® laboratory. You can calculations material data by entering parameters such as bearing load, speed, and temperature, and finally output material adaptation data.
Because the system calculate and analyze based on lab data, it can't exactly meet the ractual use requirements absolutly. The system data verification has certain limitations; CSB® recommends that the bearing must be tested again to verify whether it meets the actual use requirements.
CSB-EPB® Plastic Bearings Finder output data information is only for design reference, and can not be used as the final standard for determining the bearing material conformity, If you have any questions, please contact CSB® sales engineers.

CSB-SFP® Semi-finished Products Finder[V2.0] is based on the analysis and calculation of a large number of test data in CSB® laboratory. You can calculations material data by entering parameters such as bearing load, speed, and temperature, and finally output material adaptation data.
Because the system calculate and analyze based on lab data, it can't exactly meet the ractual use requirements absolutly. The system data verification has certain limitations; CSB® recommends that the products must be tested again to verify whether it meets the actual use requirements.
CSB-SFP® Semi-finished Products Finder output data information is only for design reference, and can not be used as the final standard for determining the bearing material conformity, If you have any questions, please contact CSB® sales engineers.

CSB-EPB6 Plastic Plain Bearings

Type PDF
Size 578KB
Time 09-2021
No. CSB/CAT.062E
download

1108

MediumEPB6 bearings resistance
AlcoholResistant
HydrocarbonsResistant
Greases. oilsResistant
FuelsResistant
Diluted acidsConditionally resistant
Strong acidsNot resistant
Diluted alkalisResistant
Strong alkalisConditionally resistant
CSB® Bearing Material Chemical Resistance

Please select bearing material and medium...

CSB® bearing material chemical resistance data is a comparison test result of the CSB chemistry laboratory using laboratory specimens or similar chemicals at room temperature 23 ℃, without considering the impact of other temperatures and chemical medium mixtures on the chemical resistance of CSB® bearing materials ; Therefore, this data can only act as a reference. CSB® recommends that the chemical resistance of actual parts should be tested under application conditions and verify the suitability of the bearings.

+86-400-6633-096

Product News

Customer Services

Fast Services

CSB® More products
EPB1 Plastic plain bearings
EPB1 Plastic plain bearings

This material is with low water absorb characteristic and high load capacity. It is widely used for the humidity condition and wear resistance requirement. The embedded special metal powder enables this...

more
EPB Plastic plain bearings
EPB Plastic plain bearings

The most common CSB plastic bearing material. It is suitbale for the applications with working temperature not higher than 80℃. It is the prefereable material with good wear resistance and economic efficient for...

more
EPB3 Plastic plain bearings
EPB3 Plastic plain bearings

Best for middle to high load applications. With the perfect combination of reinforced fibre and good lubrication feature, this material is suitbale to be used under the temperature of 130℃.

more
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.

more