Shaft encoder for reducing vibration load on a crane motor's drive shaft has a hollow shaft to rotate on bearings in a casing with a scanning head and an incremental disk linked to the hollow shaft

摘要

By applying an in-line arrangement for a sleeve (14) consisting of vibration-absorbing material, a hollow shaft (11) for a shaft encoder encases a bearing lining (15) that serves to connect the hollow shaft to the journal of a shaft on a drive motor. The material forming the sleeve is electrically insulating.