When we choose the bearings, always care about these points
1.type, rating load and limit speed;
2.precision;
3.size;
4.sealed or not;
5.type of lubricating grease .
The same type of bearing, can we use no matter which factory made it?
In fact, each bearing manufacturer has the same specification of bearing except for the type, precision, sealed or not, all of which are different.
For example, 7306B, there are 9 steel balls product, 11 balls(IT-ROLL’s conventional product),12 balls(IT-ROLL custom product).
When you choose, you can’t rely solely on experience, and no matter what the factory and design is, to draw a concusion.
A common sense, the bigger steel ball, the higher rating load. As knows, the rating load is proportional to the quantity of steel balls, and to the square of the diameter of the steel balls. Usually, the quantity of steel balls is less, the diameter of steel balls is larger.
All right, the larger the balls, the thinner inner and outer ring in the same size bearing. At that time, can you also refer to the tolerances given to your shaft and hole in the general bearing manual?
The steel balls are larger, the inertia moent of the ball caused by centrifugal force is bound to be larger, which is the cause of bearing heating.
Overall, so many bearing manufacturers, how to choose? Come to IT-ROLL, bearing selection, customization, one-stop service. Save time, save money and more reliable.