The max PV value of the EPJ series bearing is 0.4N/mm2*m/s which detemines the load capacity of bearing is inversely proportional to the speed. Please refer to the chare for more detailed information (Graph EPJ-1).

EPJ allows the max static load of 35Mpa, The max compressive deformation rate under the max load is listed in Graph EPJ-2; The actual load capaxity of bearing is slightly less than 35Mpa, The bearing load is variable against the speed and temperature, Fast speed(Vmax: 1.5m/s) results into higher temperture（Tmax: 90℃)which decreases the load capacity of the bearing. Please refer to the Graph EPJ-3 for such variation.

EPJ Bearing Friction factor Varies only little amount along with the operation speed changing(See Graph EPJ-4). When the operation speed is relatively stable, the friction factor varies a lot while the load is less than 10Mpa(See Graaph EPJ-5). At the same time, it does not very much when the loading is greater than 10Mpa. Rough surface may result into the increasing of friction factor of the EPJ material but when the roughness of the surface is greater than Ra0.5, The friction factor will remain relatively stable again. The recommended shaft surface roughness is Ra0.1~Ra0.4 for theEPJ material.

Test of the bearing against various shaft materials shows that the material EPJ features the best performance where the shaft material is hard chrome steel with loading less than 2Mpa. (See Graph EPJ-7). Therefore, the higher the load is increased, the wear-resistance of the bearing will be better against the stainless steel shaft. Refer to Graph EPJ-8, the material EPJ is suitable for rotation operation. Ether to be used under rotation operation or the oscillation operation. It is the best suitable material for the application against hard chrome steel shaft.

EPJ is good at chemical resistance against mild base, weak acidic medium and various kinds of lubricants.

The water absorb rate of EPH is 0.2% under the atmospheric pressure while it is 1.2% when the material is immerged into water. With its low water absorbability, the material is suitable for humid environment applications.

EPJ 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.

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