Gantry crane bearing selection considerations

When selecting the type and size of rolling bearings,  gantry crane  must be taken into account:
a. effect of the load on the bearing value and the direction (radial, axial and mixed);
b. loads nature (constant, variable, and impact);
c. bearing revolutions, the rotating seat revolutions per minute;
d. required bearing service life (life) (h);
e. the special requirements of the bearing, the structure of the decision by the member.
Therefore, choosing the most suitable bearing type gantry crane is a rather complicated matter. A certain amount of work for the same conditions, you can choose different bearing types that can meet their structure and function of the part, but have different gantry crane reliability and longevity.
To select the most suitable bearing  bridge crane   various types of bearings must be selected to study several possible solutions and to compare between them. This time to take into account: the bearing dimensions, relating to the lifetime of the bearing load capacity, axial load capacity, and assembly conditions, prices and their possible bearing apparatus and fixation methods.
Therefore, the choice of overhead bridge crane  bearing, not only to consider the structural, but also to consider economic indicators, and try to choose the kind of bearings, these bearings can ensure reliable operation agency, and has enough life while, cheaper and easier to buy.