Selection Method Of Koyo Bearing Type
Selection Method Of Koyo Bearing Type
2021年12月12日
Selection Skills Of Low Noise Fag Imported Bearings
Selection Skills Of Low Noise Fag Imported Bearings
2021年12月12日

Selection Points Of Nsk Bearing Type

Standard NSK Bearings have various sizes and forms, and standard bearings are used in mechanical device design (this is designed to make bearings easy to purchase. Here’s a digression. Some NSK bearing catalog models do have some, but some non-standard bearings are not available in Chinese mainland, and sometimes futures will be very long time, so when bearing selection, we should consider the cost of time and the cost of later replacement). The nature, size and direction of the load of the bearing and the load applied to the bearing are variable. Generally, the rated basic load is shown in the size table. However, axial load and radial load are also important factors for selecting suitable bearings. When the sizes of ball and needle roller bearings are the same, needle roller bearings usually have high load capacity and bear large vibration and impact Ho.

 

First of all, the size is limited.

Generally, the space where NSK Bearings can be installed is limited. In most cases, the shaft diameter (or bearing inner diameter) It is based on the mechanical design or other design constraints. Therefore, the selection of bearing type and size is determined according to the inner diameter of the bearing. Therefore, the main size tables of standard bearings are prepared according to the international standard inner diameter. Speed, allowable speed is determined according to NSK bearing type, size, accuracy, cage type, load, lubrication mode, cooling mode and other factors. The bearing table lists the allowable speed of standard precision bearings under oil lubrication and grease lubrication. Generally, deep groove ball bearings, self-aligning ball bearings and cylindrical roller bearings are suitable for high-speed operation.

Selection Points Of Nsk Bearing Type
 
Bearing tolerance, bearing dimensional accuracy and rotation accuracy are based on ISO and JIS standards.

For machines requiring high precision and high-speed operation, it is recommended to use bearings with precision of grade 5 or above. Deep groove ball bearings, centripetal thrust ball bearings or cylindrical roller bearings are suitable for machines with high operation precision. Rigidity, when the contact surface of the rolling element and raceway of the bearing is compressed, it will produce elastic deformation. Some machines need to minimize elastic deformation. Roller bearings produce less elastic deformation than ball bearings. Installation and disassembly. Some applications require frequent disassembly and installation to ensure regular inspection and disassembly. Bearings with separate inner and outer rings, such as cylindrical bearing, needle roller bearing and conical bearing, are very suitable for this occasion.

 

With the help of the shaft sleeve, the installation procedure of the taper hole self-aligning ball bearing and self-aligning roller bearing is also simplified. In addition, in some cases, NSK Bearings are preloaded to increase rigidity. This procedure is usually used for deep groove ball bearings, centripetal thrust ball bearings and tapered roller bearings. Inner and outer ring offset, shaft bending, shaft or bearing housing tolerance change and matching error will lead to inner and outer ring eccentricity. In order to prevent excessive eccentric angle, self-aligning ball bearing, self-aligning roller bearing, or self-aligning bearing seat are better choices. Voice frequency and torque, rolling bearings are manufactured according to high-precision standards, so voice and torque are small. Deep groove ball bearings and cylindrical roller bearings are suitable for occasions with special requirements for low voice and low torque.