General pretightening force is provided by the parameters of bearing factory. But in the actual assembly process, is not able to measure good to preload compliance requirements, traditionally the assembly workers with experience in installation.
1, the assembly applied force, not by NSK bearing roller or ball transfer, in order to avoid damage to the bearings.
2, preferred handling non impact way.
4, the bearing transmission precision, such as the spindle bearings, there are often pretightening force requirements. Because of these bearings only in reasonable pre-tightening force, in order to achieve the nominal accuracy.
5, if the NSK bearings in the foreign body iron, burr, dust, will make the bearing noise and vibration when in operation, and may even damage raceway and rolling body. Therefore, at the installation of bearings, you must ensure that the mounting surface and installation of a clean environment.
6, the bearings must be cleaned before installing it bearing surface coated with anti-rust oil, you must carefully washed with clean gasoline or kerosene, lubricating oil and then coated with clean quality or high temperature can be installed.
7, how to choose the grease lubrication operation and the service life of the bearing has the extremely important influence. Here briefly introduce to you the general principles of grease selection. In the lubrication NSK bearing, grease coating the better it lubricated bearings, the grease coating the better, this is a common misconception. Excessive agitation interior bearings and bearing too much oil will cause oil, resulting in high temperature.
8, how to install and remove the installation not directly hammer bearing end and non stress surface, should be to press, sleeve or other installation tools to enable the NSK bearing uniform stress. If the installation surface coated with lubricating oil, will make the installation more smoothly.
9, NSK bearing radial clearance of the smaller the better? No, all require the smallest bearing clearance job, you must be in accordance with the conditions to adopt the appropriate clearance.
NSK bearing clearance and preload adjustment process, is to improve the rotation precision bearings and bearing capacity, effective means to reduce the vibration and noise of the transmission system. We should understand the concept of assembly work, clear bearing assembly technical requirements, but also consider the control of bearing temperature rise and keep good lubrication, this method can guarantee the right to use, the rolling bearing assembly quality.