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In SHAFT SURFACE QUALITY To function effectively and provide satisfactory life, oil seals must have a thin oil film between the seal lip and mating shaft journal. This condition, known as hydrodynamic lubrication, needs shaft surfaces that are not perfectly smooth but have microscopic pockets to help maintain the lubricant film. Although plunge grinding is most widely used to finish seal journals, the resulting surface is not ideal from this standpoint. Other finishing methods, such as shot peening and liquid honing, provide a matte-type finish which is generally more effective than a plungeground surface. However, even these methods often leave raised, sharp corners that separate the resulting microscopic indentations, again providing potential starting points for leaks. worm gear motor 2008, pressure angle of worm gear it was awarded with “National Export Commodity Inspection-free Enterprise”. /
The use of original equipment manufacturer’s (OEM) part numbers or trademarks , e.g. CASE® and John Deere® are for reference purposes only and for indicating product use and compatibility. Our company and the listed replacement parts contained herein are not sponsored, approved, or manufactured by the OEM.