INA bearing speed vibration resolution skills

There are limits to the speed at which INA bearings can reach. It usually depends on the operating temperature at which the lubricant and the material of the bearing components can be used.

The speed at which the bearing reaches the operating temperature limit depends on the amount of heat generated by the friction during rolling (including any other external heat) and how much heat can be carried away from the bearing.
The type and size of the INA bearing, internal structure, load bearing, lubrication and cooling conditions, cage structure, manufacturing accuracy and clearance, etc., have a certain impact on the speed that the bearing can achieve.

Two differently defined rated speeds are usually listed in the relevant product table; reference speed (related to heat) and limit speed (related to physical structure), which are parameters depending on different considerations.

Most INA bearings are damaged for many reasons, such as excessively small bearing clearances caused by previously estimated loads, ineffective seals, and tight fits. Any of these factors have their particular type of damage and leave a special mark of damage. Therefore, inspecting the bearing of the damaged shaft, in most cases, its possible cause can be found.

In general, one-third of INA bearing damage is caused by fatigue damage, the other third is due to poor lubrication, and the other third is due to contaminants entering the bearing or improperly installed. However, these types of damage are also related to industry. For example, the pulp and paper industry is mostly due to bearing damage due to poor lubrication or contamination rather than material fatigue.