EPB11 Plastic Plain Bearings

CSB Plastic is one of the leading China epb11 plastic plain bearings manufacturers and suppliers,Website:http://www.csbbearings.com, and also a professional epb11 plastic plain bearings factory and company, we are always at your services.EPB6A Plastic Plain Bearings● 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 for flexible shaft;● FDA grade.The Material Data SheetTypical ItemStandardUnitCSB-EPB6A   DensityISO1183g/cm³1.14   ColorWhite   Dynamic friction /steel(dry)0.10-.040   Max. PV (dry)N/mm²×m/s0.1   Max. roatating velocitym/s0.6   Max. oscillating velocitym/s0.4   Max. linear velocitym/s1.0   Tensile strengthISO527MPa83   Compressive strength (Axial)MPa50   E-moduleISO527MPa2800   Max. static pressure of the surface, 20℃MPa20  Shore hardnessISO868D76   Continuous work temperature℃-40/80   Short-time work temperature℃-40/170   Thermal conductivityASTME1461W/m×k0.2   Linear coef. of thermal expansionASTMD696K-1×10-510   Moisture absorption RH50/23℃ASTMD570%1.5   Max. water absorption, 23℃%7.6   FlammabilityUL94HB   Volume resistivityIEC60093Ωcm>1012   Surface resistivityIEC60093Ω>1015PV Value of BearingsThe max PV value of the CSB-EPB6A series bearing 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).The Relation of Load, Speed and TemperatureCSB-EPB6A allows the Max static load of 20Mpa, 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 20Mpa, 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.The Friction Factor,Wearing and shaft materialFriction 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 CSBEP3M 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-EPB6ADryGreaseOilWaterFriction coef. μ0.05~0.180.090.040.04Wearing and shaft materialGraph 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-8 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 ResistanceCSB-EPB6A is good at chemical resistance against weak acidic medium and various kinds of lubricants.Water AbsorbabilityThe water absorb rate of CSB-EPB6A is 1.5% under the atmospheric pressure while it is 7.6% when the material is immerged into water. The application environment has to be considered because of its water absorb properties.UV ResistanceWhen CSB-EPB6A is exposed into the UV ray, the material performance stays stable.Bearing InstallationCSB-EPB6A 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