Different types of slewing bearing without gear

Compared with other rolling bearings, the slewing bearing has a thin section, usually 1 meter or more in diameter. At the same time, there are several types of slewing bearings. This paper mainly refers to the slewing bearing without gear.There are also many types of them, and better maintenance can make it work better.

Point:

• What is slewing bearing without gear

• Different types of it

• Maintenance

What is slewing bearing without gear

Slewing bearing without gear is made of chrome, carbon and stainless steel. It has inner ring, outer ring and steel balls. It is used in various rotating machines with or without eccentric loads. Such as reducers, pumps, cranes and lifting jack.Different types of slewing ring bearing without gear has different capacity load. Among all these types, the no gear three row roller slewing bearing has the largest load and is specially suitable for the heavy duty machinery such as wheeled excavator, wheeled crane, ship crane, ladle turrets and the heavy duty mobile crane, etc.

Different types of it

Four point contact slewing bearing for load distribution

The single row four point contact ball slewing bearing is composed of two seat rings, which design in compact structure and light weight, steel ball contact with the circular raceway at four point, it can bear the axial force, radial force and the tilting moment at the same time.

Surface phosphating treatment small diameter slewing ring bearing without gear

Phosphating is a chemical process used to deposit metal-phosphate layers that are hardly soluble on steelsubstrates. The layers created are porous, absorbent and suitable for powder coating. They are also suitable as temporary corrosion protection if subsequently treated with oil, water or passivations.

other types

There are also fork lift trucks used small diameter selwing ring bearing without gear,high Precision Mini Diameter Slew Ring without Gear for Mini Digger,small diameter high speed ball slewing ring bearing for crane without gear,High precision small size slewing bearing without gear for turntable machinery etc.

Maintenance

1.The slewing bearing is factory-coated with a small amount of No. 2 extreme pressure lithium grease (GB/T7324-1994). The activation allows the user to refill the new grease according to different working conditions.

2.The slewing bearing raceway should be filled with grease regularly. Special working conditions, such as tropical, high humidity, high dust, large temperature difference and continuous operation, should shorten the lubrication cycle. New grease must be added before and after the machine has been shut down for a long time. For each lubrication, the raceway must be filled with grease until it seeps out from the seal. When filling grease, slowly turn the slewing ring to make the grease fill evenly.

3.The tooth surface should be cleaned of debris and coated with the corresponding grease.

4.Because of the comprehensive work factors, the user can also choose the best grease according to the specific requirements.

5.After the slewing bearing is operated for the first time for 100 hours, the pre-tightening force of the bolt should be checked. After every 500 hours of operation, it must be checked for a sufficient preload.

6.Pay attention to the operation of the slewing bearing during use. If noise, shock and power suddenly increase, stop the machine immediately, check the fault, and dismantle it if necessary.

7.In use, it is forbidden to directly flush the slewing ring with water to prevent it from entering the raceway. Prevent harder foreign objects from approaching or entering the tooth meshing area.

8.Always check the integrity of the seal. If it is found that the seal bag is damaged, it should be replaced in time. If it falls off, it should be reset in time.

No matter what type of slewing bearing without gear we use, we have to better maintain it. Good maintenance allows the support to work well, and we need to maintain it on a regular basis.