Handbook of mechanical design are provided for each type of deep groove ball bearing static load, I have a problem, if the load is greater than its own calculation of deep groove ball bearing static and dynamic load of a particular model but still use the bearing is as the product of the wheel would be directly damaged? I found in the calculation of the load is too large, the direct impact of the bearing life is shortened, calculated only a few hours, this shows that the model bearings in the work can only work these hours? But my boss told me that the load that I said just now is much less than the rated load. Can it be used more than rated?
What I want to say is that no matter which country or the manufacturer, no matter how good the bearing is, there is always a rated load, but it is only a good load on the bearing. If it exceeds the rated load of the bearing, I suggest that you choose another larger rated load, or reduce the force on the bearing. More than the rated load is still used, as you said, the biggest impact is life, the more critical it is, the less it can be designed.
Bearing rated dynamic load is greater than its rated static load, rated static load is generally rated dynamic load of 70%-80%, see bearing samples. Generally, the rated dynamic load of foreign bearings is 10% higher than that on the manual. Look at the bearing samples, it is best to see the sample rated dynamic load, do not look at the manual.
You load calculation, check whether the problem. The general mechanical design reference to similar products, generally not much worse. Support bearing, has been considering load, speed, installation space, lubrication calculation and ISO281 calculation. According to domestic and foreign bearing rated load, but the material coefficients vary, with selection and calculation can provide. The original data, I can try to calculate the following
