In order to study the dynamic characteristic of the escalator drive chain system and the effect of the sprocket wear and chain wear on the characteristic of chain drive. based on the theory of chain drive kinematics and multi-body dynamics. a simulation model of the escalator drive chain system is built by RecurDyn. Two conditions of no-load and load are set up. https://safeersappliancers.shop/product-category/neff-d95bmp5n0b-n70-built-in-90cm-5-speeds-a-chimney-cooker-hood-stainless/