| 摘要 |
An electromotive power steering apparatus using a coated pulley is provided to obtain friction and abrasion resistance using a pulley having a coating layer. An electromotive power steering apparatus using a coated pulley has a coating layer(343) on the outer circumference of a first pulley(337) coupled to a ball nut or a second pulley(339) coupled to one end of an electric motor(335). The coating layer has a composition, in weight percent, of 10 to 90 wt% molybdenum sulfide, 5 to 10 wt% antimony trioxide, 1 to 5 wt% anti-corrosive agent, 1 to 5 wt% auxiliary lubricant, and 1 to 3 wt% organic binder, all of which are dispersed in a solvent of 1 to 10 wt%. The coating layer has a thickness of 1 to 100 micron after cleaning, coating, drying, and hardening processes.
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