... a roller. We use world and Chinese famous brand with high quality to make the idler has the ideal ... idler and roller in China.2. Chinese famous roller brand "HAIHUI" 3.Third party certification: BV/SGS/MA ... . The bearing use SKF, NSK, HRC, LYC,ZWZ brand and the sealing type have ZZ, 2RS, RS and ... than 5 mm219150-3500308 310more than 5 mm New designed high quality and best sale impact roller with frame ...