Roller bearing is a kind of bearing. When the Journal rotates, it makes circumferential contact with many rollers usually installed on the positioning ring. Roller bearings can achieve good accuracy and rigidity by preloading. The inner ring with taper can also be used to arbitrarily adjust the working clearance of the bearing. This solution can fully meet the need of zero clearance of printing roller bearings.
The use of needle roller bearings still makes printer manufacturers bothered by the need to process coats with high accuracy and experienced installers to find suitable needle roller groups. To solve this problem, bearing manufacturers have developed roller bearing support with outer ring integrated flange.
And the flanged outer ring solves the problem of installation and lubrication for the printer manufacturer. Its roller bearing support scheme has become the mainstream scheme of roller support in printing press.