?????????????????????????????? ?????????????????????? ??????????????????????????????? ????????????????????????????????????????? ????????????????????? ??????????????????????????????????????????????????????????? (Repairing Concreate System) ????????????????????????? ??????????????????????? ????????????????????????????????????????????? ??? ?????? ??
4 สัญญาณเตือนของตลับลูกปืนที่ใกล้ชำรุดหรือหมดสภาพการใช้งาน
????????????????????????????????????????????????????????????????????????????????? (Bearing) ??? ?????????????????????????????????????? ????????????? ??????? ?????? ???? ??????? ?????????????????????????????????????????????????????????????????????????????? ????????????????????????????????????????????????? ??????????????????????????