IKO bearings should be how the selection
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The IKO imported bearings should be selection? Here is a selection that should be considered factors.
Actually consider the limit speed of IKO bearings, not only to take into account the type of IKO bearings, sometimes also need to consider the composition of the bearing components, such as the cage material, the form of printed design and technology factors, but also with the bearings inside the sliding friction lubricant storage and maintenance of rolling element running stability are closely related, and sometimes critical bearings can achieve the ultimate speed on bearing life requirements and reliability requirements of the uniform consideration, usually take the reliability coefficient of 90 %, which means a lot of running in the same working conditions, IKO bearings, 90% of the bearings reach the intended working life of the L10 is still kept in normal condition. If you want higher reliability, for example, 96%, it must reduce the life of IKO bearings requirements, for example, must be reduced to L4, L10 life. Said to the spindle bearings, the highest requirement is the same or slightly higher than the life of the whole machine, the minimum requirement is a life longer than the spindle overhaul of components, and in fact, more than that meets the requirements of the host of performance does not result in the spindle system is too large and economically more cost-effective options for consideration, there is considerable precedent available for most machines.
It should be emphasized that the selection calculation should also be considered a form of failure of IKO bearings, there is wear, lubrication failure, as well as micro-abrasion wear life must check the other failure modes of involved must also be considered.
Note the fatigue life and wear life of the IKO bearings can expect not only with lubrication, and installation position of the bearing, bearings, IKO bearings used in lubricant cleanliness of the three are directly related to the form of sealed and effect, the selected IKO bearing rated life and the lubrication, cleanliness and seal adapted to the conditions and to improve these conditions can improve the actual service life of the IKO bearings.
Considering the load factor should pay attention to the bearing life is more sensitive to load than on speed, multi-stage drive shaft, if possible, should be larger deceleration on the later series; spindle bearings, if possible, appropriate the distance between the point of bearing fulcrum of the deployment of external load, and strive to reduce the load of spindle IKO bearings, and seeks to spread the load on the spindle IKO bearings smooth, to avoid shock and vibration, which requires the installation of bearings parts shape and position accuracy high enough, the IKO bearing clearance and cooperation to select the correct bearing installation accuracy.
