● 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 under -100℃. If the working temperature is higher than 50℃, additional locating ring is neccessary
● Continuous working temperature: -100℃/+70℃
● Suitable for low load
● Low operation speed and low noise
● No PTFE and silicon, FDA grade
Material properties
Standard
Unit
CSB-EPB11
General properties
Color
-
-
White
Density
ISO1183
g/cm3
0.96
Max. moisture absorption, 50%RH
ISO62
%
0.1
Max. water absorption
ISO62
%
0.1
Coefficient of sliding friction(steel)
ITS025
µ
0.05-0.15
Max. PV value
ITS026
N/mm2×m/s
0.20
Mechanical properties
Flexural modulus
ISO178
MPa
1200
Flexural strength
ISO178
MPa
25
Max. static load
ITS027
MPa
25
Max. dynamic load
ITS028
MPa
6
Shore hardness
ISO868
D
62
Physical and thermal properties
Long-term application temperature
ITS029
℃
+70
Short-term application temperature
ITS029
℃
+100
Lowest application temperature
ITS029
℃
-100
Thermal conductivity
ISO22007
W/m/K
0.20
Coefficient of thermal expansion
ISO11359
K-1×10-5
19
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.
The max PV value of the CSB-EPB11 plastic bearings is 0.2N/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 EPB11-1).
▊ Load, speed and temperature
CSB-EPB11 allows the Max static load of 25Mpa, The max compressive deformation rate under the max load is listed in Graph EPB11-2, The actual load capacity of bearing is slightly less than 25Mpa, The bearing load is variable against the speed and temperature, Fast speed (Vmax: 0.5m/s) results into higher temperature (Tmax: 70℃) which decreases the load capacity of the bearing. Please refer to the Graph EPB11-3 for such variation.
▊ Friction factor, wear and shaft material
▊ Friction factor
Graph EPB11-4 and Graph EPB11-5 shows that the friction factor of CSB-EPB11 is not considerably variable against the changing of the loading and operation speed because there is no Fluorine and Silicon in this material and therefore its low friction feature is completely depended on the material Features. Graph EPB11-6 shows that the friction factor of CSB-EPB11 is sensitive to the shaft roughness. The shaft roughness of Ra0.2~0.6 is recommended for the best performance of CSB-EPB11 bearings.
CSB-EPB11
Dry
Grease
Oil
Water
Friction coef. μ
0.05~0.15
0.09
0.04
0.04
▊ Wearing and shaft material
From the testing result to different materials shows in Graph EPB11-7 and Graph EPB11-8, it is found CSB-EPB11 is the best choice for hardened chrome steel shaft. Graph EPB11-7 tells that CSB-EPB11 is with better feature in rotation operation than in oscillation operation when the loading is lower than 6Mpa and the wearing feature of oscillation operation is better than of rotation operation when loading is higher than 6Mpa.
▊ Chemical resistance
CSB-EPB11 is good at chemical resistance against mild base, weak acidic medium and various kinds of lubricants.
▊ Water absorption
The moisture absorption of CSB-EPB11 plastic plain bearings is 0.1% in standard atmosphere. The max. water absorption is 0.1% in water. These values are very low, CSB-EPB11 plastic palin bearings is very well suited for used in water.
▊ UV resistance
The material performance of CSB-EPB11 will be lowered if it is exposed in the UV ray for long period.
▊ Installation tolerances
CSB-EPB11 Tolerances after pressfit
Diameter [mm]
CSB-EPB11 D11 [mm]
Housing H7 [mm]
Shaft h9 [mm]
>0～3
+0.020～+0.080
0～+0.010
0～-0.025
>3～6
+0.030～+0.105
0～+0.012
0～-0.030
>6～10
+0.040～+0.130
0～+0.015
0～-0.036
>10～18
+0.050～+0.160
0～+0.018
0～-0.043
>18～30
+0.065～+0.195
0～+0.021
0～-0.052
>30～50
+0.080～+0.240
0～+0.025
0～-0.062
>50～80
+0.100～+0.290
0～+0.030
0～-0.074
Medium
EPB11 bearings resistance
Alcohol
Resistant
Hydrocarbons
Resistant
Greases. oils
Resistant
Fuels
Conditionally resistant
Diluted acids
Resistant
Strong acids
Not resistant
Diluted alkalis
Resistant
Strong alkalis
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℃.
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...
It is a PTFE and Silicon free material widely used in the food and packing machineries. Continuous working temperature: -40℃/+80℃. No special requirement on the surface roughness. Low friction coefficient. Applicable...
Continuous working temperature: -100℃/+250℃. Suitable for high load and lovo speed operation. High load capacity at higher temperature. Good chemical resistance. FDA grade.
