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目前显示的是标签为“pitch 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.
As a renewable and clean energy source, wind power is rapidly developing all over the world. Large wind turbines are giant machinery. Nowadays, many 2MW wind power plants under construction have wind turbine blades with a length of about 40 meters, a rotating shaft with a height of 60 to 100 meters and total weight of more than 200 tons. Therefore, the bearings used in wind power must also be large, with an inner diameter ranging from 100 mm to 700 mm. Some models require bearings with an inner diameter of nearly 2 meters. Bearings for wind turbines require high reliability, because the bearings are designed to keep the windmill running for 20 years; and when the fault occurs, the parts are not easy to replace (the bearing is used at a long distance from the ground). Bearing manufacturers need to have a high degree of computer analysis technology and exquisite skills in materials and heat treatment, and need to master the testevaluation technology for large bearing . ZYS has been en...