According to the parts used, operating conditions, and environmental conditions, selecting the size and precision and matching it with the appropriate double row ball slewing bearing ensures the service life and feasibility of the slewing bearing and double row ball slewing bearing.
Application: The tapered roller double-row ball slewing bearing should bear radial loads and radial combined loads. Usually, two sets of double row ball slewing bearings are paired and mainly used for front and rear wheels of automobiles, active umbrella gears, differentials, reducers, and other transmission components.
Allowable rotational speed: Under the correct installation and good lubrication environment, the limit speed of the double row ball slewing bearing is 0.3-0.5 times. In general, it is best to multiply by 0.2 for the limit speed.
Allowable tilt angle: Tapered roller double row ball slewing bearings generally do not allow the shaft to be inclined relative to the housing hole.
Allowable temperature: Under normal load-bearing conditions, the lubricant has high-temperature performance. Ordinary double row ball slewing bearings can work in an ambient temperature of -30℃-150℃ under sufficient lubrication conditions.
It has become important to check the running condition of the machine on the double row ball slewing bearing, and it is becoming more and more important to prepare for a comprehensive inspection plan. The damage of the rotating disc double row ball slewing bearing is the most important state monitoring of all rotating mechanical parts. Therefore, the damage of the rotating dual-row slewing bearing of the turntable is an important part of the house that has been damaged in the early stage. However, not all machines are equipped with this advanced equipment. In this case, machine operators or maintenance engineers must pay attention to the failure signal alarm of the double-row ball slewing bearing shaft.
The reason is that the sound is smooth and brittle, and inadequate lubrication may cause a sharp creaking sound due to the incorrect clearance of the double row ball slewing bearing. The concave marks on the outer ring of the double row ball slewing bearing will cause vibration. As for scars caused by equipment jumping, it will produce noise of different speed levels. If there is intermittent noise, the rolling parts may be damaged. This sound appears on the start date of the damage surface. If the "double-row ball slewing ring" makes a hissing sound, the double-row ball slewing ring is usually severely damaged, causing irregular damage.
When selecting the double row ball slewing bearing, pay attention to the maximum load of the double row ball slewing bearing. Select the appropriate double row ball slewing bearing at maximum load according to the type of work. The double row ball slewing bearing is a special bearing. The axial load, radial load, and tipping moment of the bearing, so when selecting the double-row ball surface slewing bearing, it is also necessary to consider the maximum load of each load. Double row ball slewing bearing is used in cranes, excavators, and other large construction machinery. It is especially important to pay attention to the load of the double row ball slewing bearing. In practical use, the maximum load should not exceed the maximum load to avoid damage to the double row ball slewing bearing.