پاورپوینت مبانی یاتاقان های غلتشی
پاورپوینت مبانی یاتاقان های غلتشی
نوع فایل power point قابل ویرایش 115 اسلاید قسمتی از اسلایدها Ball and roller bearings due to low rolling friction these bearings are aptly called “antifriction” bearing. Frictional resistance considerably less than in plain bearings Rotating – non-rotating pairs separated by balls or rollers Ball or rollers has rolling contact and sliding friction is eliminated and replaced by much lower rolling friction. In plain bearing the starting resistance is much larger than the running resistance due to absence of oil film. In ball and rolling bearings the initial resistance to motion is only slightly more than their resistance to continuous running. Hence ball and rolling bearing are more suitable to drives subject to frequent starting and stopping as they save power. Owing to the low starting torque, a low power motor can be used for a line shaft running in ball bearing. & ...دریافت فایل
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دسته : فنی و مهندسی
تگ ها : پاورپوینت, مبانی یاتاقان های غلتشی