2015年7月29日星期三

The linear bearing

miniature linear bearings is used in linear motion ball or sliding bearing. high precision ball bearings consists of a plastic cage, guide the ball rolling with bearing of hardened steel rolling way. Bearing on grinding hardening axis movement. Linear sliding bearing consists of a plastic sleeve, sleeve is installed in the steel bearing box, mobile in grinding optical axis.

2015年7月25日星期六

single direction thrust ball bearing the matters needing attention

single direction thrust ball bearing fatigue rupture caused by unbalanced vibration, the deflection of shaft and edge load, overload, babbitt slewing bearing manufacturer fatigue rupture. Bearing repair installation quality is not high 1, improve the quality of installation, reduce the bearing vibration
2, prevent partial load and overload
3, adopt appropriate babbitt, and a new bearing structure
4, strictly control the temperature rise
Hair big particles as lubricating oil dirt into the bearing clearance, and embedded hidden on the bearing bushing, the bearing contact with the journal (or thrust plate), the formation of crusts, when running seriously scratch the surface of the shaft, note oil clean hair bearing, especially of maintenance, should pay attention to the metal dust or dirt to clean clean

2015年7月20日星期一

the Maintenance methods of four point contact ball slewing bearing

four point contact ball slewing bearing Damage type failure due to handle method
Agglutination bearing overheating and excessive load, improper operation or the temperature control system failure 1, found in sports such as bearing overheating, should immediately stop check, had better take the rotor at low speeds continue to run, or continue to fuel supply for a period of time, until the bearing shell cooling down. Otherwise, the bearing shell on the babbitt due to glue stick on the shaft neck, trouble to fix it
2, prevent the lubricating oil is insufficient or oil mixed with impurities, and the rotor of the installation
3, damage to the glue, lighter offshore crane bearing shell can scrape grind repair method to eliminate, continue to use