Assuming the role of the surface of the rolling force uniform, then the value of C can be considered. However, in the power transmission apparatus, the misalignment is a common problem. In the bearing selection, you have to be compensated. Table 17 provides several types of permissible bearing misalignment. If you do not exceed the allowable value, this need to be amended.
Although each of the different types of misalignment of the bearing with a basic set of correction coefficients, but the design characteristics of the respective manufacturers also plays an important role, you must consider these characteristics. Typically, a sample of the manufacturer listed on the coefficients of their products.
For the required nominal load Once the final value, you must consider the bearing dimensions required for installation, including consideration here bearing installation and fixed. As well as having the required load bearing shaft matching size. These factors help determine the bearing structure and size, you can also exclude certain bearing type. In some cases, due to space constraints at rated load even ruled out before determining choice.
For example, if the bearing shape is very narrow, the ball bearings are available in this job only type. Or, if you must use a very small diameter of the bearing box, you will need to install two or more of the same shaft roller bearings to achieve sufficient load rating.
When the shaft size and load bearing requirements are very different when measured relative to the emergence of another common contradiction. If the shaft is great, but the load is light, even if the required rated load is small, but they have made an expensive, high-load rating of large bearing, in this case, the best in contact with the bearing manufacturer in order to propose the most cost-effective solution.