● It is a material with good high temperature upto 250 ℃, high chemical resistance and high load application. It is suitable for the applications in water or most of chemical liquids.
● Continuous working temperature: -100℃/+250℃
● Good wear resistance with long service life
● Suitable for operation in dusty environment
● No special requirement on the surface roughness
● Low friction coefficient
Material properties
Standard
Unit
CSB-EPB10
General properties
Color
-
-
Black
Density
ISO1183
g/cm3
1.42
Max. moisture absorption, 50%RH
ISO62
%
0.1
Max. water absorption
ISO62
%
0.5
Coefficient of sliding friction(steel)
ITS025
µ
0.10-0.25
Max. PV value
ITS026
N/mm2×m/s
1.35
Mechanical properties
Flexural modulus
ISO178
MPa
10000
Flexural strength
ISO178
MPa
210
Max. static load
ITS027
MPa
125
Max. dynamic load
ITS028
MPa
80
Shore hardness
ISO868
D
86
Physical and thermal properties
Long-term application temperature
ITS029
℃
+250
Short-term application temperature
ITS029
℃
+315
Lowest application temperature
ITS029
℃
-100
Thermal conductivity
ISO22007
W/m/K
0.60
Coefficient of thermal expansion
ISO11359
K-1×10-5
5
Flammability
UL94
Class
V0
Electrical properties
Volume resistance
IEC60093
Ω·cm
>105
Surface resistance
IEC60093
Ω
>105
*ITS: CSB company's internal test standards. **Test temperatures are 23℃ unless otherwise stated.
The max PV value of the CSB-EPB10 plastic bearings is 1.35N/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 EPB10-1).
▊ Load, speed and temperature
CSB-EPB10 allows the Max static load of 125Mpa, The max compressive deformation rate under the max load is listed in Graph EPB10-2, The actual load capacity of bearing is slightly less than 125Mpa, The bearing load is variable against the speed and temperature, Fast speed (Vmax: 1.5m/s) results into higher temperature (Tmax: 250℃) which decreases the load capacity of the bearing. Please refer to the Graph EPB10-3 for such variation.
▊ Friction factor, wear and shaft material
▊ Friction factor
Graph EPB10-4 shows that the friction factor of CSB-EPB10 is increasing along with the operation speed when the loading is stable within 30 Mpa. When the loading is higher than 30Mpa, the friction factor variation will not be detectable. Graph EPB10-6 describes that CSB-EPB10 is featured best within the shaft surface roughness of Ra0.6~0.8.
CSB-EPB10
Dry
Grease
Oil
Water
Friction coef. μ
0.10~0.25
0.09
0.04
0.04
▊ Wearing and shaft material
Graph EPB10-7 and Graph EPB10-8 is the comparing test for the CSB-EPB10 wearing against different shaft materials. Stainless steel and hot-rolled steel shaft is the best shaft material for CSB-EPB10 when the loading is lower than 2Mpa. Graph EPB10-7 shows that CSB-EPB10 is most suitable for rotation operation. Graph EPB10-9 shows a very special feature of CSB-EPB10 that the wearing Features of CSB-EPB10 is much better when the temperature is 150 ℃ than that of the temperature of 23℃.
▊ Chemical Resistance
Chemical Resistance of CSB-EPB10 is very good. It can work well in the heavy acid of 65%.
▊ Water absorption
The moisture absorption of CSB-EPB10 plastic plain bearings is 0.1% in standard atmosphere. The max. water absorption is 0.5% in water . These values are very low, CSB-EPB10 plastic palin bearings is very well suited for used in wet applications.
▊ UV resistance
CSB-EPB10 can maintain its performance to be stable even exposed in the UV ray for long period.
▊ Installation tolerances
CSB-EPB10 Tolerances after pressfit
Diameter [mm]
CSB-EPB10 F10 [mm]
Housing H7 [mm]
Shaft h9 [mm]
>0～3
+0.006～+0.046
0～+0.010
0～-0.025
>3～6
+0.010～+0.058
0～+0.012
0～-0.030
>6～10
+0.013～+0.071
0～+0.015
0～-0.036
>10～18
+0.016～+0.086
0～+0.018
0～-0.043
>18～30
+0.020～+0.104
0～+0.021
0～-0.052
>30～50
+0.025～+0.125
0～+0.025
0～-0.062
>50～80
+0.030～+0.150
0～+0.030
0～-0.074
>80～120
+0.036～+0.176
0～+0.035
0～-0.087
>120～180
+0.043～+0.203
0～+0.040
0～-0.100
Medium
EPB5Z bearings resistance
Alcohol
Resistant
Hydrocarbons
Resistant
Greases. oils
Resistant
Fuels
Resistant
Diluted acids
Resistant
Strong acids
Conditionally 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.
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