With the rapid development of technology, printing machinery is also undergoing a  revolutionary leap. People has increasing demands for sheet-fed offset flat printing machine and web offset flat printing machine. High efficiency and high print quality need to be achieved in high-speed operation and low costs. Bearing, as a key component of rotating and supporting, undertake the tasks for the printing machinery development. Our bearings are wide used in printing machinery via unique selection of design for cages, precision, and clearance etc.