??????????????????????????? ??????????????????????????? (Drawn-cup needle roller bearing) ???????????????????????????????????????????????????????????????????????????????????????????????????????????????? ?????????? ISO ????????????????????????????? 2.5 ???????????????????????????????????????????????????????????????????
ลักษณะการใช้งานตลับลูกปืนเม็ดเข็มดรอว์นคัพ
??????????????????????????? ??????????????????????????? (Drawn-cup needle roller bearing) ???????????????????????????????????????????????????????????????????????????????????????????????????????????????? ?????????? ISO ????????????????????????????? 2.5 ???????????????????????????????????????????????????????????????????
ลักษณะการใช้งานตลับลูกปืนเม็ดเข็มดรอว์นคัพ
??????????????????????????? ??????????????????????????? (Drawn-cup needle roller bearing) ???????????????????????????????????????????????????????????????????????????????????????????????????????????????? ?????????? ISO ????????????????????????????? 2.5 ???????????????????????????????????????????????????????????????????