EPB14 Plastic Plain Bearings

CSB Plastic is one of the leading China epb14 plastic plain bearings manufacturers and suppliers,Website:http://www.csbbearings.com, and also a professional epb14 plastic plain bearings factory and company, we are always at your services.EPB14 Plastic Plain Bearings● Econimic solution for high speed application. Under the temperature of 260℃, the material can still have good chemical resistance feature. It is not suitable for high load application. When the temperature is higher than 135℃, additional location ring is neccessary.● Continuous working temperature: -200℃～260℃;● Maintenance-free dry operation;● Low friction requirement;● High surface speed under low load;The Material Data SheetTypical ItemStandardUnitCSB-EPB14   DensityISO1183g/cm³2.13   ColorBlack   Dynamic friction /steel(dry)0.08-0.18   Max. PV (dry)N/mm²×m/s0.3   Max. roatating velocitym/s2.0   Max. oscillating velocitym/s1.4   Max. linear velocitym/s5   Tensile strengthISO527MPa13   Compressive strength (Axial)MPa8   E-moduleISO527MPa790   Max. static pressure of the surface, 20℃MPa8  Shore hardnessISO868D65   Continuous work temperature℃-200/260   Short-time work temperature℃-200/310   Thermal conductivityASTME1461W/m×k0.25   Linear coef. of thermal expansionASTMD696K-1×10-512   Moisture absorption RH50/23℃ASTMD570%<0.1   Max. water absorption, 23℃%<0.1   FlammabilityUL94V0   Volume resistivityIEC60093Ωcm>104   Surface resistivityIEC60093Ω>103PV Value of BearingsThe max PV value of the CSB-EPB14 series bearing 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 EPB14-1).The Relation of Load, Speed and TemperatureCSB-EPB14 allows the Max static load of 8Mpa, The max compressive deformation rate under the max load is listed in Graph EPB14-2, The actual load capacity of bearing is slightly less than 8Mpa, The bearing load is variable against the speed and temperature, Fast speed (Vmax: 2.0m/s) results into higher temperature (Tmax: 260℃) which decreases the load capacity of the bearing. Please refer to the Graph EPB14-3 for such variation.The Friction Factor,Wearing and shaft materialFriction Factor   The coefficient of friction decreases like the wear resistance with increasing surface speed. In contrast, a higher surface speed has less impact on the coefficient of friction of CSB-EPB14 bearing (Graph EPB14-4 and EPB14-5). From the figure EPB14-6, we could see that the friction factor is variable against the changing of shaft roughness. The recommended shaft roughness is Ra0.3~0.5.CSB-EPB14DryGreaseOilWaterFriction coef. μ0.03~0.150.090.040.04Wearing and shaft materialThe shaft material is an important media for the bearing wearing but CSB-EPB14 is suitable for almost all kinds of shaft materials. Graph EPB14-7 shows that the wearing feature of CSB-EPB14 is excellent when the shaft material are hardened chrome steel or hardened steel. Graph EPB14-7 shows that the material CSB-EPB14 is most suitable for the rotation operation.Chemical ResistanceChemical Resistance of CSB-EPB14 is very good. It can work well in the heavy acid of 65%.Water AbsorbabilityThe water absorb rate of CSB-EPB14 is less than 0.1% under the atmospheric pressure while it is less than 0.1% when the material is immerged into water. The material performance and dimensions of the material is stabilized for the applications under humid environment or even in the water.UV ResistanceCSB-EPB14 can maintain its performance to be stable even exposed in the UV ray for long period.Bearing InstallationCSB-EPB14 The Interfit ToleranceDiameter mmThe Interfit Tolerance E10Fit Housing H7Fit Shaft h9>0～3+0.014～+0.0540～+0.0100～-0.025>3～6+0.020～+0.0680～+0.0120～-0.030>6～10+0.025～+0.0830～+0.0150～-0.036>10～18+0.032～+0.1020～+0.0180～-0.043>18～30+0.040～+0.1240～+0.0210～-0.052>30～50+0.050～+0.1500～+0.0250～-0.062>50～80+0.060～+0.1800～+0.0300～-0.074