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PV Value of Bearings

The max PV value of the CSB-EPB11 series bearing is 0.2N/ 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 EPB11-1).

The Relation of Load, Speed and Temperature

CSB-EPB11 allows the Max static load of 30Mpa, The max compressive deformation rate under the max load is listed in Graph EPB11-2, The actual load capacity of bearing is slightly less than 30Mpa, The bearing load is variable against the speed and temperature, Fast speed (Vmax:0.5m/s) results into higher temperature (Tmax: 70℃) which decreases the load capacity of the bearing. Please refer to the Graph EPB11-3 for such variation.

The Friction Factor,Wearing and shaft material

Friction Factor
Graph EPB11-4 and Graph EPB11-5 shows that the friction factor of CSB-EPB11 is not considerably variable against the changing of the loading and operation speed because there is no Fluorine and Silicon in this material and therefore its low friction feature is completely depended on the material Features. Graph EPB11-6 shows that the friction factor of CSB-EPB11 is sensitive to the shaft roughness. The shaft roughness of Ra0.2~0.6 is recommended for the best performance of CSB-EPB11 bearings.

CSB-EPB11
Dry
Grease
Oil
Water
Friction coef. μ
0.05~0.15
0.09
0.04
0.04


Wearing and shaft material

From the testing result to different materials shows in Graph EPB11-7 and Graph EPB11-8, it is found CSBEPB11 is the best choice for hardened chrome steel shaft. Graph EPB11-8 tells that CSB-EPB11 is with better feature in rotation operation than in oscillation operation when the loading is lower than 6Mpa and the wearing feature of oscillation operation is better than of rotation operation when loading is higher than 6Mpa.

Chemical Resistance

CSB-EPB11 is good at chemical resistance against mild base, weak acidic medium and various kinds of lubricants.

Water Absorbability

The water absorb rate of CSB-EPB11 is less than 0.1% under the atmospheric pressure while it is less than 0.1% when the material is immerged into water. With its low water absorbability, the material is suitable for humid environment applications or even under water.

UV Resistance

The material performance of CSB-EPB11 will be lowered if it is exposed in the UV ray for long period.

Bearing Installation

CSB-EPB11A The Interfit Tolerance

Diameter mm
Tolerance after fit E10
Fit Housing H7
Fit Shaft h9
>0~3
+0.014~+0.054
0~+0.010
0~-0.025
>3~6
+0.020~+0.068
0~+0.012
0~-0.030
>6~10
+0.025~+0.083
0~+0.015
0~-0.036
>10~18
+0.032~+0.102
0~+0.018
0~-0.043
>18~30
+0.040~+0.124
0~+0.021
0~-0.052
>30~50
+0.050~+0.150
0~+0.025
0~-0.062
>50~80
+0.060~+0.180
0~+0.030
0~-0.074

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