The max PV value of the CSB-EPB6A plastic bearings is 0.1N/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 EPB6A-1).
▊ Load, speed and temperature
CSB-EPB6A allows the Max static load of 35Mpa, The max compressive deformation rate under the max load is listed in Graph EPB6A-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: 0.6m/s) results into higher temperature (Tmax: 80℃) which decreases the load capacity of the bearing. Please refer to the Graph EPB6A-3 for such variation.
▊ Friction factor, wear and shaft material
▊ Friction factor
CSB-EPB6A Bearing Friction factor is increased along with the increasing of the operation speed under certain loading (See Graph EPB6A-4). The friction factor of CSB-EP3M is decreased along with the loading increasing not over 10Mpa (see Graph EPB6A-5). The friction factor will not change much along with the speed when the loading is over 10Mpa. The Graph EPB6A-6 shows that the bearing could achieve its best performance when the counter shaft surface roughness is around Ra0.3 to Ra0.6.
CSB-EPB6A
Dry
Grease
Oil
Water
Friction coef. μ
0.10~0.40
0.09
0.04
0.04
▊ Wearing and shaft material
Graph EPB6A-7 and Graph EPB6A-8 show the test results of the material CSB-EPB6A running against different shaft materials. The test result induces that the wearing is considerably affected by the different shaft materials. It is recommended to use hard chrome steel shaft for this material. Graph EPB6A-7 shows CSB-EPB6A is commonly suitable for oscillation operation but it features well for the rotation operation when the shaft material is hard chrome and it is good for oscillation operation when the shaft material is carbon steel steel.
▊ Chemical resistance
CSB-EPB6A is good at chemical resistance against weak acidic medium and various kinds of lubricants.
▊ Water absorption
The moisture absorption of CSB-EPB6A plastic plain bearings is 1.5% in standard atmosphere. The max. water absorption is 7.6% in water. The application environment has to be considered due to the high water absorbtion properties.
▊ UV resistance
When CSB-EPB6A is exposed into the UV ray, the material performance stays stable.
▊ Installation tolerances
CSB-EPB6A Tolerances after pressfit
Diameter [mm]
CSB-EPB6A 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
Medium
EPB6A bearings resistance
Alcohol
Resistant
Hydrocarbons
Resistant
Greases. oils
Resistant
Fuels
Resistant
Diluted acids
Conditionally resistant
Strong acids
Not resistant
Diluted alkalis
Resistant
Strong alkalis
Conditionally resistant
CSB® Bearing Material Chemical Resistance
Please select bearing material and medium...
R - Resistant
CR - Conditionally resistant
NR - Not resistant
ND - No test data
RD - Resistant，but the dimension changed due to moisture absorption
NO - No data
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.
▊CSB-EPB® Plastic Bearings Finder[V2.1] 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
view tools
DURAPLAS® Semi-finished Products Finder V2.0
▊DURAPLAS® 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. ▊DURAPLAS® 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.
High temperature and wear resistance material comforms to FDA regulation. It is suitable for the food machinery where the food is directly contacted with the material under the high temperature of 180℃.
Wear resistance material with low friction factor without PTFE and Silicon. It comforms to the FDA standard and could be contacted with food directly. It is suitable for the applications in water or with the temperature...
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...
Continuous working temperature: -100℃/+250℃. Suitable for high load and lovo speed operation. High load capacity at higher temperature. Good chemical resistance. FDA grade.
