Attention should be paid to slewing bearing in use:
(1) if the grease deterioration is caused by the leakage of the rotary motor, the rotary motor shall be repaired to fundamentally solve the problem, and then the grease of the whole rotary gear ring shall be replaced.
(2) if the oil leakage is caused by improper selection, it shall replace all the oil in the rotary gear ring. It should also be noted that the bearing cavity should also use the same brand of grease. Lithium molybdenum based grease should be used, which will not decrease in viscosity at high temperature.
(3) correctly control the maintenance cycle of the rotary bearing, that is, grease must be added every 150~250h. Oil can be divided into several times to complete, namely the excavator every turn 90 ° refill. The amount of filling shall be limited to grease overflow from the outer oil seal.
(4) if the rotary bearing is damaged, the entire rotary bearing shall be replaced.
 




Product display:






Dimensions of slewing support:
Slewing support bearing capacity is large, but there are disadvantages, it is a large bearing, the volume is larger, so many people want to both bear and a little smaller, but small slewing support minimum can do more small?
Because the slewing support belongs to the large bearing general manufacturers are equipped with large equipment, jig all kinds of supporting facilities are in accordance with the large bearing configuration, if the small need to match a set of equipment, so generally will not do very small unless small bearing manufacturers.





Selection of slewing support:
Because the structure limits the slewing support outer diameter is less than 300 belongs to the small slewing support, the slewing support is the inner and outer ring separation structure clearance small installation is more difficult, so too small slewing support installation also has the very big technical difficulty.
Within 300 small made crossed roller slewing bearing usually form, the separation structure of such structure is easy to install the result is reduced endurance, speed is reduced, but also can use turntable bearing form the structure of prices more expensive, so choose as far as possible when selecting a small rotary bearing more than 200 mm, or choose to cross roller bearing should also can satisfy the use requirement.