EPB6 Plastic Plain Bearings

CSB Plastic is one of the leading China epb6 plastic plain bearings manufacturers and suppliers,Website:http://www.csbbearings.com, and also a professional epb6 plastic plain bearings factory and company, we are always at your services.EPB6 Plastic Plain Bearings● 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.The Material Data SheetTypical ItemStandardUnitCSB-EPB6   DensityISO1183g/cm³1.45   ColorWhite   Dynamic friction /steel(dry)0.05-.018   Max. PV (dry)N/mm²×m/s0.3   Max. roatating velocitym/s1.0   Max. oscillating velocitym/s0.7   Max. linear velocitym/s3.0   Tensile strengthISO527MPa70   Compressive strength (Axial)MPa65   E-moduleISO527MPa2300   Max. static pressure of the surface, 20℃MPa30  Shore hardnessISO868D74   Continuous work temperature℃-40/80   Short-time work temperature℃-40/120   Thermal conductivityASTME1461W/m×k0.2   Linear coef. of thermal expansionASTMD696K-1×10-510   Moisture absorption RH50/23℃ASTMD570%0.2   Max. water absorption, 23℃   FlammabilityUL94%1.1HB   Volume resistivityIEC60093Ωcm>1012   Surface resistivityIEC60093Ω>1015PV Value of BearingsThe max PV value of the CSB-EPB6 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 EPB6-1).The Relation of Load, Speed and TemperatureCSB-EPB6 allows the Max static load of 30Mpa, 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 30Mpa, 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.The Friction Factor,Wearing and shaft materialFriction FactorGraph 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-EPB6DryGreaseOilWaterFriction coef. μ0.05~0.180.090.040.04Wearing and shaft materialGraph EPB6-7 and Graph EPB6-8 describes CSB-EPB6 bearing is suitable for hardened steel and hardened chrome steel shaft. Graph EPB6-8 shows the wearing features of CSB-EPB6 is very similar during its rotation operation and oscillation operation so that this material is suitable for most of the applications.Chemical ResistanceCSB-EPB6 is good at chemical resistance against mild base, weak acidic medium and various kinds of lubricants.Water AbsorbabilityThe water absorb rate of CSB-EPB6 is 0.2% under the atmospheric pressure while it is 1.1% when the material is immerged into water. With its low water absorbability, the material is suitable for humid environment applications.UV ResistanceCSB-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.Bearing InstallationCSB-EPB6 The Interfit ToleranceDiameter mmTolerance after fit 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>80～120+0.072～+0.2120～+0.0350～-0.087>120～180+0.085～+0.2450～+0.0400～-0.100