The capacity and weight of the bearing to carry the limit
What exactly is the concept of 4000MPa, that is, an area of one square millimeter can withstand 4000 Nm of force, that is, 400 kg. The area of a fingernail is about 100 square millimeters, the bearing can withstand a weight of 400 X100 = 4000 kg = 40 tons, what is the concept of forty tons, an adult elephant weighs 4 to 6 tons.
According to the calculation of five tons, 40 tons is 8 adult elephants, imagine 8 adult elephants standing on your fingernails is what the situation, is not very spectacular, bearings generally contain multiple rolling elements, so the bearing carrying capacity is very high, here is only a brief introduction to the ultimate bearing capacity of the bearing, as for the dynamic load carrying capacity will be different.
So how the bearing withstands the high temperature, why does the temperature rise first, when the bearing works, between the rolling element and the outer ring, between the rolling element and the inner ring, there will be contact friction °, friction will generate heat, and the heat will be absorbed by the bearing parts. Friction is a source of heat for bearing parts.
So is the temperature really high when the bearing is working normally, the answer is no, then the bearing has been working continuously, how to reduce the temperature, first to reduce the generation of heat, what to do? Lubrication, reduce the friction coefficient between the contacts, after the friction coefficient is reduced, the heat generated is less, and the bearing work is to add grease or lubricating oil to work.
