Standard Slewing Bearing
Slewing bearings are mostly large bearings, with large size, high precision and compact structure, working under heavy load at low speed, they can bear axial, radial, tilting moment, etc. TINVO can research and develop outer diameter 0.2-10m slewing bearings.
Common Structure
Single-row four point contact ball slewing bearings (1-1);
Double-row ball slewing bearings (1-2);
Cross cylindrical roller slewing bearings (1-3);
Three-row cylindrical roller combined slewing bearings (1-4)
Single-row four-point contact ball slewing bearings
The single row four-point contact ball slewing bearing is composed of two seat rings. It has a compact structure, light weight, and four-point contact between the steel ball and the arc raceway. It can bear axial force radial force and overturning moment at the same time. The construction machinery of rotary conveyor, welding manipulator, small and medium-sized crane and excavator can be selected.
Cross cylindrical roller slewing bearings
The single-row cross roller slewing bearing is composed of two seat rings. It has a compact structure, light weight, high manufacturing accuracy, small assembly gap and high requirement for installation accuracy. Rollers are cross-arranged. It can bear axial force, overturning moment, and large radial force at the same time. It is widely used in lifting transportation, construction machinery, and opto-electronic products.
Double-row ball slewing bearings
The double row ball slewing bearing has three seat rings. The steel balls and isolators can be directly arranged into the upper and lower raceways. According to the stress conditions, the upper and lower rows of steel balls with different diameters are arranged. This kind of open assembly is very convenient. The bearing angle of the upper and lower arc raceway is 75 degrees. It can bear a great deal of axial force and overturning moment. When the radial force is greater than 0.l times the axial force, the raceway must be specially designed. The axial and radial dimensions of the double row ball slewing bearing are relatively large and the structure is fastened It is especially suitable for handling tower canes, truck cranes, and other loading machines that require medium or above diameters.
Three-row cylindrical roller combined slewing bearings
Three-row roller slewing bearing has three seat rings, the upper and lower raceways, and the radial raceways are separated, so that the load of each row of roller can be determined accurately. Being able to bear all kinds of loads at the same time, it is the largest of the four structural products with large axial and radial dimensions and firm structure. It is especially suitable for heavy machinery requiring a larger diameter, such as bucket wheel stacker and reclaimer , wheel crane, marine crane, port crane, ladle turret, large tonnage truck crane, etc.
Slewing Bearing Application
