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In the choice of the type of NSK Bearings and type, you need to consider a variety of factors, such as the main factor limiting the size of NSK bearings, NSK bearing speed, NSK bearing tolerances and installation and so on removal.
 
First, consider the bearing size limitations. Standard bearings are mainly based on the international standard size table prepared by diameter size, bearing type and size selection is based on the inside diameter of the bearing of the decision. Generally, the installation space can NSK bearing is restricted, shaft (or bearing diameter) also limits the mechanical design or according to other design.
 
Bearing speed considerations, the table lists the standard precision bearings under oil lubricated bearings and grease lubricated promised speed. OK There are many factors that promised to speed, such as NSK bearing type, size, precision, cage type, load, lubrication, and cooling method and other factors. Typically, deep groove ball bearings, self-aligning ball bearings and cylindrical roller bearings are suitable for high speed applications.
 
Consider bearing tolerance factors. Bearing dimensional accuracy and rotational accuracy is based on the ISO and JIS standards. For high accuracy and high speed machinery, recommend the use of five or more precision bearings, deep groove ball bearings, angular contact ball bearings or cylindrical roller bearings are suitable for high operating precision machinery. Rigidity, when bearing rolling elements and raceway contact surface pressure, will produce elastic deformation. Some machinery necessary to minimize elastic deformation.
 
Bearing installation and removal are easy to also consider. Because the bearings should always conduct demolition and installation, as well as to detect regularly to avoid damage to occur. Cylindrical bearings, needle roller bearings, and tapered bearings are mounted on the inner outer ring.
 
To increase the preload of considering rigidity. In the deep groove ball bearings, angular contact ball bearings and tapered roller bearing inner and outer rings of bias, shaft bending, shaft or bearing housing tolerances aspects change is sometimes necessary to increase the rigidity of preload to avoid errors in the lead with the inner and outer rings eccentric. In terms of preventing the eccentric angle is too large, a better choice is self-aligning ball bearings, self-aligning roller bearings or spherical bearings.