49棋牌app

SERVICE

SERVICE

Fretting



Damage mode causes Solutions
● wear caused by repeated
mutual minute sliding between two contact surfaces
● occurs at the contact surfaces between the raceways and the rolling elements
● produces bronze or black wear powder, so also called fretting wear corrosion
● poor lubrication
● swing motion of low amplitude
● insufficient interference
● use appropriate lubricant
● preload
● check the interference
● coat fitting surfaces with lubricant

bearing Fretting


● inner ring of deep grove ball bearings
● micro-vibration on the inner ring
● damage caused by vibration

bearing Fretting

● inner ring of thrust ball bearing
● obvious micro-vibration wear on the inner ring
● damage caused by insufficient interference

bearing Fretting
● outer ring of double row cylindrical roller bearing
● micro-vibration on the raceways at roller spaced distance

KMR logo

+86

yjx@kmr.cn.com

+86 /

Copyright © 2011-2016 Shandong KMR bearing Science & Technology Co.,Ltd.   Technical support:

全民湖南棋牌 开心飞鹰 老棋牌游戏 购买产品免费竞猜 超级快3历史记录