Double Row Ball Slewing Bearing

First of all, the height of the single row ball bearing slewing ring should be high, and the steel ball should be 60-70mm to ensure that the bearing capacity is competent and the sealing performance is better. In the early use of the bearing, the application is very high, and the user feedback is good. The characteristic is that the height is high and the steel ball is enlarged, which improves the rigidity and strength of the bearing and is a very good choice.

The double row ball bearing is based on the consideration of flexibility of the slewing bearing, and the structural consideration which increased to reduce the excessive fatigue of the raceway and the steel ball, thereby improving the life and stability of the slewing bearing. The design considerations are perfect, but the application process is flawed, and the raceway force sometimes appears eccentric.

Combining the slewing bearings of the two structures, because the starting points are slightly different, they both have a good and stable record on the ship crane. From the feedback, the advantages and disadvantages are not obvious, and both structures are still good choices. Of course, the price of double-row slewing bearings is significantly higher than that single-row slewing bearings.