1. Integration of factories and trade to ensures
that every working procedure of the product
can be strictly controlled.
2. Competitive quality and low price.
3. Advanced technology, professional packaging,
fast delivery, and developed sea, land and air logistics.
4. Timely after-sales service ensures that users
have a great experience.

Tower Crane F023b Slewing Ring for Slewing Mechanism.

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 0.1 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 cranes, truck cranes and other loading machines that require medium or above diameters.
Luoyang hengguan bearing co., LTD. Produces the double ball type slewing bearing has the following series models

Bearing Parts

Steel ball/Roller:carbon-chromium bearing steel GCr15SiMn or GCr15 for rolling Material
Cage: include integral cage, segment cage and spacer-type cage. We use 20# steel or copper for integral and segment cages, PA 1010 resin or QA110-3-105 albronze for spacer-type cages.
Seals:uses NBR or VITON, few felted wool.

Single row cross roller slewing bearing

It is composed of two or three rings. It has compact structure, light weight, high manufacturing accuracy, small assembly gap and high requirement for installation accuracy. Rollers are 1:1 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 military products

Three row roller slewing bearing

It have 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 one of the four structural products with large axle and radial dimensions and firm structure. It is especially suitable for heavy machinery requiring larger diameter, such as bucket wheel stacker and reclaimer, wheel crane, marine crane, port crane, ladle turret and large tonnage truck crane. Heavy machinery and so on.

Single row four point contact ball slewing bearing.

It is composed of two seat rings. It has compact structure, light weight, and four-point contact between steel ball and 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.