Slewing bearing

Rotary bearing, also known as rotary bearing, is also known as rotary bearing or rotary bearing by some people. The English name is: sliding bearing, sliding ring bearing, or turnable bearing.

Slewing support is a large bearing that can withstand comprehensive loads, and can simultaneously withstand large axial and radial loads and overturning moments. Rotary bearing generally has installation holes, inner or outer gears, lubricating oil holes, and sealing devices, which can make the main engine design compact, easy to guide, and easy to maintain. There are four series of rotary bearings: non toothed, outer toothed, and inner toothed four point contact ball bearings, double row angular contact ball bearings, cross cylindrical roller bearings, cross tapered roller bearings, and three row cylindrical roller composite bearings. Among them, four point contact ball bearings have high static load capacity, cross cylindrical rollers have high dynamic load capacity, and the pre interference of cross tapered roller bearings can make the bearings have greater support rigidity and rotation accuracy. Due to the improvement of bearing capacity, the three row cylindrical roller composite bearings lead to the height of the bearing, and various forces are borne by different raceways. Therefore, under the same force conditions, their bearing diameter can be greatly reduced, making the main engine more compact. Slewing bearing with high load-bearing capacity. Rotary bearings are widely used in large rotary devices of lifting machinery, mining machinery, construction machinery, port machinery, ship machinery, high-precision radar machinery, missile launchers, and other equipment. At the same time, various special structures of rotary bearings can also be designed, developed, and produced according to the specific requirements of users.