Backing bearings are particularly thick outer ring of the rolling bearing, when used to form a group to be mounted on the shaft of a stationary support rollers. Pressure on the work roll through the intermediate roller and the support roller is passed to the system to the rack through the saddle. Generally used for multi-roll cold rolling mill equipment can also be used for other occasions, such as straightening machine.
2013年9月2日星期一
Bearing the importance and role of lubrication
Lubrication of Roller bearing in particular, the fatigue life of the rolling bearing and friction, wear, temperature, vibration, etc. have a major impact. Without proper lubrication, the bearings will not work. Bearing causes of damage showed that more than 40% of the bearing damage are related with poor lubrication. So, good lubrication for bearings is to reduce bearing friction and wear of effective measures.
Meanwhile, imports Precision bearing lubrication and cooling, rust, sealing, ease the impact and other effects.
Bearing lubrication effects can be briefly described as follows
1, in the rolling surface contact with each other or the two form a film between the sliding surfaces of the second surface spaced from the contact surface to reduce friction and wear.
2, using oil lubrication, especially the use of circulating oil lubrication, oil mist lubrication and injection lubrication, the lubricant inside the bearing can take away most of frictional heat, serve as an effective heat sink.
3, using grease lubrication, be protected from external dust and other foreign matter from entering the bearing, and sealing effect.
4, the lubricant has a role to prevent metal corrosion.
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