We – EPG Group the most significant gearbox & motors , couplings and gears factory in China with 5 different branches. For far more specifics: Cellular/whatsapp/telegram/Kakao us at: 0086~13083988828 13858117778083988828 A lot more A tough shaft surface accelerates seal use. But a finished area that is too clean will not assist hydrodynamic lubrication of the seal lip. Most oil-seal manufacturers recommend shaft area roughness in between ten and 20-m in. Ra.gaji pt yamaha indonesia motor manufacturingimportantly, wor ept of repulsion induction motorwe make particular elements according to equipped drawings/samples and warmly welcome OEM inquiries. The use of authentic products manufacturer’s (OEM) part numbers or logos , e.g. CASE® and John Deere® are for reference needs only and for indicating item use and compatibility. Our business and the detailed substitute elements contained herein are not sponsored, accepted, or produced by the OEM.