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Determination of 
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Design - pv-range - Calculation procedure nominal service life - Surface load - Velocity - Load capacity - Load factor - Temperature - Roughness - Example

Determination of bearing size

Load Capacity C and C0

The dynamic load capacity C and the static load capacity C0 express the load capacity of a bearing. The basic dynamic load rating C is used for calculations when the GLYCODUR® bearing is subjected to dynamic stress. It represents the load (constant in magnitude and direction) under which a basic rating service life (expressed as a sliding distance) will be obtained for continuous oscillating movement at a defined sliding velocity and at room temperature. It presupposes that the load acting on bushings and flanged bushings is in a radial direction only and that the load acting on thrust washers is purely axial and acts concentrically.

Dynamic load refers primarily to angular and rotational movements.
Additionally, micro sliding movements occur, resulting from vibrations or high-frequency load changes. Often, the load types mentioned represent a combination of all types.

While angular and rotational move-ments under load will mainly cause wear, other cases may result in material fatigue. Indication of load capacities is always dependent upon basic definitions. Therefore, load capacity figures from different manufacturers, cannot simply be compared with each other.

The static load capacity C0 indicates the maximum load which a bushing, flange bushing or thrust washer can support at room temperature in the static condition, without permanent deformation occurring in the sliding layer that may impair the bearings function. At higher temperatures the static load capacity has to be reduced, depending on the sliding material combination, by the temperature factor c3, which also applies to dynamically loaded bearings. Additionally, the permissible temperature application ranges have to be observed for the individual sliding materials.


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