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目前显示的是标签为“railway bearing”的博文

Elevator bearing working principle and main components

A vertical lift powered by an electric motor, equipped with a box-shaped pod,  elevator bearing  used Crew or transport goods in multi-storey buildings. There is also a step type, the step board is installed in Bring continuous operation, commonly known as automatic elevators. The structure of the elevator includes: Four spaces: Machine room part, shaft and pit part, car part, maintenance floor part; Eight major systems: Traction system, guidance system, car, door system, weight balance system, Electric drive system, electrical control system, safety protection system.