NSK bearings imported during the installation process, if the installation of the way or method is undeserved, can cause NSK import bearings in the installation and removal, NSK import bearing raceway surface and rolling on the surface caused by NSK bearing import appear linear scars.
The reasons for scars mainly because import NSK bearing when installation, disassembly, NSK import bearing inner ring and outer ring tilt; Or the impact load in the process of installation and removal. NSK imported bearing and cause scars.
So NSK imported bearing in order to avoid scar, in addition to install or remove the process of using appropriate tools, but also use the punching machine to prevent the impact load of NSK bearings imported, and will pay attention to the mutual centering during installation.