Slewing Bearing

Slewing Bearing

Single Row Four Point Contact Ball Slewing Bearing

Single Row Four Point Contact Ball Slewing Bearing

Single row four point contact Slewing Bearing can be customized to meet the user’s different working conditions and normal working conditions in the environment, providing excellent axial, radial and titling moments. Mainly used in radar, military turrets, machine tools and excavators.

  • Product Origin:

  • Item NO.:

    HS series
  • Shipping Port:

  • Color:

    Customer wants
  • Lead Time:

    From 40 days to 60 days
  • Payment:

Product Detail

The brand of single row four point contact slewing bearing is MAANSHAN JINGWEI SLEWING RING CO.,LTD. The product is packed in wooden cases, which can be exported. The application scope of this product is construction machinery.High Speed single ball slewing bearing


1.n1 is No. of lube holes, the user can specify the lube hole position.

2.n-φ can be changed to threading holes, hole diameter M, thread depth 2M.

3.There are standard products in the catalog, and the inner and outer diameters are random tolerances. If there is a locating requirement for slewing bearing, please indicate the site and tolerance.

4.It is standard type of our products, if you need more please contact with engineer.

In heavy duty applications with frequent rotation, premature failure is a common failure of large diameter slewing bearings. In large rotating equipment such as cranes, excavators and tunnel boring machines, the slewing bearing must simultaneously deal with various combinations of complex axial, radial and tilt moment loads. If it is maintained regularly, 96% of the slewing bearing failures can be prevented. In order to prolong the bearing life to the maximum extent, it is only necessary to lubricate the raceway and gear, check the bolt torque and seal.

Four Point Contact Ball Slewing Bearing

Slewing ring lubrication

Use extreme pressure lithium grease to lubricate and maintain the Fenghe slewing bearing according to the user's operation manual. The slowly rotating equipment shall be fully lubricated every 100 hours. More frequent lubrication may be required on fast moving or continuously rotating equipment, even every 8 hours a day. At the same time of adding lubricating grease, fill it up until the seal overflows, which can effectively extrude the impurities inside the slewing ring and effectively clean the inside. If it is not used for a long time, the grease of the slewing ring will dry, thus forming condensation in the slewing ring. We can avoid this by injecting new grease at least every six months.

Gear lubrication

Generally, the inner ring or outer ring of the slewing bearing has teeth. At this time, it is necessary to use the pinion to drive. As the Meshing Effect of the teeth is easy to extrude the grease, the gear should be lubricated every 6 hours on the slow rotation or intermittent rotation equipment, that is, a small amount of grease should be introduced at the meshing point between the gear and the slewing bearing ring gear.

Sealing element

The seals on the bearings shall be visually inspected on a regular basis to ensure that they are in good condition. Many people have neglected the importance of seals, but they help to a great extent to prevent contamination of the slewing ring raceway.


Vibration and impact tend to loosen bolts, but periodic torque checks and tightening will help to maintain proper preload levels. Torque check of bolts should be part of routine maintenance procedures. The mounting bolts shall be torqued to the proper level and checked periodically to ensure proper preload. Bolt creep is another factor that should be monitored. The tightened bolt will creep or stretch over a period of time, thus reducing the preload.

A free consultation

Email us with any questions or inquiries or use our contact data. We would be happy to answer your questions.

Related Products
three row column slewing ring
Good Quality Cheap China Customized Three Row Column Slewing Ring

The three row roller type slewing bearing has three races, and the upper and lower and the radial raceways are separated, so that the load of each row of rollers can be accurately determined.

Cross Roller Slewing Bearing
Industry Brand Quality First Choice Cross Roller Slewing Bearing

Cross Roller Slewing Bearing,it is a widely used measuring instruments slewing ring and a slewing ring for rotating tables,manufacturing devices .

Four Point Contact Slewing Bearing
Truck Crane Single Row 50 Mn Slewing Bearing

The single row four point contact ball slewing bearing 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.

Good Quality L-type Slewing Ring
China Customized Good Quality L-type Slewing Ring

L Slewing Ring is widely used in engineering machinery, metallurgical mining machinery, port machinery, construction machinery, environment protection machinery, light industry machinery, engineering vehicles, solar power, wind power and other industries.

Crossed roller slewing bearing
China Popular Convenient Installation Cross Roller Slewing Bearing

China Popular Convenient Installation Cross Roller Slewing Bearing is a high quality  crossed roller slewing bearing made in china.It is widely used in hoisting, transportation, engineering machinery and military products.

Three rows of roller type slewing bearings
Mass Supply Made in China Three Row Roller Slewing Ring

Mass Supply Made in China Three Row Roller Slewing Ring is a large diameter heavy machinery slewing bearings and a large tonnage crane machinery slewing bearing.    

double row ball slewing bearing
Well Sold Mechanical Double Row Ball Slewing Bearing

The double row ball slewing bearing has three seat rings. The steel ball and isolation block can be directly discharged into the upper and lower raceways. It is especially suitable for tower crane, truck crane and other loading and unloading machinery requiring medium or above diameter.

Worm Gear Slewing Bearing
China Good Quality Worm Gear Type Slewing Bearing

Worm Gear Slewing Bearing,it is especially suitable for heavy machinery with large diameter, such as bucket wheel excavator, wheel crane, ship crane, ladle slewing and large tonnage truck crane.

© Copyright: 2023 MA ANSHAN JING WEI SLEWING RING CO.,LTD. All Rights Reserved.

IPv6 network supported

Friend link :

wheel hub bearing

Leave a message

Leave a message

    If you have questions or suggestions,please leave us a message,we will reply you as soon as we can!