What Are the Problems With Slewing Bearing Gear?

Generally, a slewing bearing gear is a type of bearing that is used in the transmission of torque. It is usually made of metal and its design depends on the function of the engine and the gearbox. It is often made in such a way that it allows for a very high rotational speed, compared to other types of bearings. However, there are some problems with it, including the possibility of broken gear teeth.

Common causes of broken gear teeth

During the initial installation process, improper meshing of the large and small gears results in broken teeth. If the meshing is not correct, the teeth are not properly engaged and the load is not distributed to the whole width of the tooth.

Surface damage includes abrasion, pitting, and fine cracks. It is often caused by a foreign body in the lubricant. These may include metal particles, weld spatter, and sand.

Other factors include inadequate lubrication, excessive wear, and poor alignment. All these factors contribute to the need for repair and maintenance. Fortunately, many of these problems can be prevented by proper maintenance and care.

The JGMA standards define several types of gear failures. These failures are usually less predictable and more complicated.

The most obvious example is the breakage surface. This surface has no color layers, but is uniform in size and reflects the extreme over-stress of an operation. This surface indicates that the strength of the gear is not sufficient to withstand the actual load.

Design of a slewing bearing gear

Typically, a slewing bearing is used in applications that require heavy-duty cycles and high-accuracy performance. Depending on the application, it can be designed with different features to meet the requirements of its host.

Slewing bearings are designed to transmit radial and tilting loads. They are also commonly integrated into gear drive systems. They are used in a variety of industrial applications, such as lifts, factory automation, and mobile machinery.

There are many different types of slewing bearings. The most common are plain, flanged, and geared. However, there are also toothless models available, as well as external gears.

The selection of a slewing bearing depends on the application, design needs, and installation. It is important to consider the lubrication system, as well as other design details. The installation surface should be flat and clean.

Stainless steel components are also available to improve corrosion resistance. This helps in slewing bearings' durability. It is also a good idea to choose a lubrication system that is designed to work well with the bearing.

Maintenance of a slewing bearing gear

Having a slewing bearing gear in your equipment can help it to move more efficiently, but they also require careful maintenance to avoid wear and tear. Failures are usually caused by a number of factors, including faulty lubrication, improper installation, contamination, and overuse. By following some tips, you can minimize the chances of these problems.

One of the first things you should do when you install a slewing bearing is to make sure the bolts are tightened properly. It is recommended to check the pre-tightening torque of each bolt, which should be in the range of 70 to 80 N*m. After the first 100 hours of use, the tensile strength of the bolts should be checked. If they are too loose, they will allow water and other contaminants to enter the lubricating cavity, which can cause accelerated raceway wear.

You should also keep track of the slewing ring's oil seals. The outer oil seal is located on the lower surface of the inner ring gear, and is used to prevent foreign objects from entering the raceway. You should check for leakage every 50 to 100 hours.

Repair of a broken slewing bearing gear

Generally, a slewing bearing is used in a machine that is capable of heavy work. These are commonly found on excavators. The teeth in these slewing bearings are susceptible to wear, which can cause them to break.

The most common failure in slewing bearings is broken gear teeth. This can be a serious problem. It is important to know the symptoms of this type of failure.

First, the slewing bearing should be lubricated regularly. It is also important to have a smooth mounting surface. It should be free of debris and excess material. If this is not the case, the bearing will be inflexible and have difficulty in use.

When this happens, it is necessary to repair the slewing bearing. There are many methods to do this. You can do it yourself or hire a professional.

Before you begin, you should find a qualified slewing bearing manufacturer. There are several reputable manufacturers in the market. They can help you determine the best solution for your application.