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Slewing bearing without gear vs slewing ring bearing with internal gear

Views:4     Author:Site Editor     Publish Time: 2019-05-25      Origin:Site

The slewing bearing is a large bearing that can withstand the combined load and can withstand large axial, radial loads and overturning moments. The slewing bearing usually has a mounting hole, an internal gear or an external gear, lubricating oil hole and a sealing device, so that the design of the main body is compact, the guiding is simple, and the maintenance is easy. There are gearless slewing bearings, external gear slewing bearings and slewing bearings with internal gear. Slewing bearings are widely used in large-scale rotary devices such as lifting machinery, mining machinery, construction machinery, port machinery, ship machinery, and high-precision radar machinery and missile launchers.

 

List of content for this article:

  • What is slewing bearing without gear?

  • Definition of slewing bearing with internal gear

  • Different application of them

 

The definition of gearless slewing bearing

The slewing bearing is a large bearing that can withstand the combined load and can withstand large axial, radial loads and overturning moments. Slewing bearings are widely used in the real industry and are called “machine joints”. The slewing bearing has a toothless type, an external tooth type and an internal tooth type. Then it is without gears.

 

What is internal gear type slewing bearing?

It is with an internal gear. Today, it widely used in lifting, mining, construction, port machinery, as well as on large-scale rotary devices for marine machinery and high-precision radar machinery and missile launch equipment. The slewing bearing usually has a mounting hole, an internal gear or an external gear, lubricating oil hole and a sealing device, so that the design of the main body is compact, the guiding is simple, and the maintenance is easy.

 

Different application of them

  • Application of slewing bearing in engineering machinery

Slewing bearings are widely used. Engineering machinery is the most widely used place for slewing bearings, such as earthmoving machinery, excavators, disintegration machines, stacker reclaimers, graders, road rollers, powerful boring machines, rock drilling machines, roadheaders, etc.

Others are: concrete machinery: concrete pump truck, concrete mixing cloth rod machine, belt conveyor

—  Feeding machinery: disc feeder, sand mixer

—  Hoisting machinery: wheeled cranes, crawler cranes, portal cranes, tower cranes, forklifts, cranes, gantry cranes, ground handling machinery: impact reverse circulation drilling rig, rotary drilling rig, impact rotary drilling rig , rotary drilling rig, reverse circulation rotary drilling rig, positive circulation rotary drilling rig, long spiral engineering drilling rig, diving engineering drilling rig, static pressure pile machine, pile driver

—  Engineering ship: dredger

—  Special vehicles: bridge inspection vehicles, fire trucks, window cleaning machines, flat beam trucks, aerial work vehicles, self-propelled aerial work platforms

—  Light industry machinery: beverage machinery, blow molding machine, packaging machinery, filling machine, rotary bottle unscrambler, injection molding machine

—  Marine crane

  • Application of equipment platform slewing bearing

In addition to various construction machines, the range of applications for slewing bearings has been gradually expanded. Equipment platforms such as port equipment, metallurgical equipment, and drilling platforms have begun to use slewing bearings instead of original bearings.

—  Port equipment: port cranes, front cranes

—  New energy equipment: wind power equipment, solar power equipment

—  Metallurgical equipment: metallurgical crane, ladle turret, steel grabber, mud gun, oxygen blowing device

—  Amusement equipment: Ferris wheel, etc.

—  Airport equipment: airport tanker

—  Military equipment: radar, tanks, etc.

—  Robot: palletizing robot, welding robot, robot

—  Medical equipment: gamma knife

—  Environmental protection equipment: scraper

—  Parking equipment: tower garage

—  Drilling platform equipment, kitchen equipment, numerical control equipment (wire cutting machine, quenching machine), brick machine

 

Slewing bearings are widely used in the real industry and are called “machine joints”. Their main applications are widely used in: truck cranes, railway cranes, port cranes, marine cranes, metallurgical cranes, container cranes, excavators. , filling machines, and CT standing wave therapy devices, nautical instruments, radar antenna mounts, missile launchers, tanks, robots, and rotating restaurants. The slewing bearing has a toothless type, an external tooth type and an internal tooth type. Different types of slewing bearings are used in different places. The slewing bearing industry has experienced more than 20 years of development in China. The JB2300-84 "slewing bearing form, basic parameters and technical requirements" standard was first released in 1984, and the JB/T2300-1999 "slewing bearing" revised in 1999. Now, China has a comprehensive development capability for the design, manufacture and testing of slewing bearings.


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