Cov khoom
Take-up roller bearing units muaj ib tug kheej kheej los yog tapered cov menyuam bearing mounted nyob rau hauv ib tug uas tsis yog-split cam khwb cia hlau vaj tse uas yuav tsum tau mounted rau feem ntau coj-up ntas nyob rau hauv lub khw.Cov chav nyob yog kaw thiab lubricated thiab npaj siv.