What if the slewing bearing rusts?Method to prevent rust of rotary bearing

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Slewing bearings are important parts in many modern machinery and equipment, because their performance is more unique than other mechanical parts, including significant advantages in anti-corrosion performance. However, if the slewing bearing is not produced in strict accordance with the cleaning and anti-rust regulations and the requirements of the oil seal and anti-rust packaging, the bearing parts in the processing process and the finished bearing products after assembly shall be treated with rust; or the anti-rust used in production The quality of rust lubricating oil, cleaning kerosene and other products cannot meet the requirements of the process technology, and the use of inferior anti-rust lubricating oil will cause the bearing to rust. So what can be done to prevent it from rusting? Today, the editor will share with you several ways to prevent the rust of turntable bearings.

1. Surface cleaning method

Cleaning must be based on the nature of the surface of the rust-prevented material and the prevailing conditions, and an appropriate method must be selected. Generally, there are solvent cleaning method, chemical treatment cleaning method and mechanical cleaning method. When the surface is dry and cleaned, it can be dried with filtered dry compressed air, or dried with a dryer at 120~170℃, or dried with clean gauze.

2. Method of applying anti-rust oil

1. Brushing method

This method is suitable for slewing bearings or special-shaped bearings that are not suitable for immersion or spraying. When brushing, it is necessary to pay attention not to produce anti-rust oil accumulation, and of course to prevent leakage.
Slewing ring
2, spray method

Some large slewing bearings cannot be oiled by immersion method, generally use about 0.7Mpa pressure filtered compressed air to spray in clean air. The spray method is suitable for solvent-diluted anti-rust oil or thin-layer anti-rust oil, but complete fire protection and labor protection measures must be adopted. This method is mostly used for rust prevention of some large slewing bearings.

3, soaking method

The slewing bearing is soaked in anti-rust grease, and a thick layer of anti-rust grease can be adhered to its surface. The thickness of the oil film can be achieved by controlling the temperature or viscosity of the anti-rust grease, and this layer of grease can effectively isolate it from The contact of air achieves the effect of rust prevention.

The above are several ways to prevent rusty slewing bearings. I hope everyone can help after reading them. In addition, when we use the bearing, do not directly touch the bearing with your hands, because when sweat contacts the bearing, a layer of sweat film will be formed on the bearing surface. The sweat film will cause electrochemical effects on the bearing and corrode the bearing. Therefore, use special tools such as special gloves or finger cots to pick up the bearing, and do not touch it directly with your hands.

Discussion on the stability of slewing bearings

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For equipment installed with slewing bearings, corresponding performance is the focus of users’ attention, and often requires high accuracy. In the application of equipment, the stability of the slewing bearing can meet the requirements of the special work nature of construction equipment, including bearing large axial load, radial load and overturning moment and other comprehensive loads. The following editor will discuss the stability of the slewing bearing with everyone:

In the design of accessories, the rolling elements are usually separated by separate blocks. This structure can maintain the smoothness of movement, so it is widely used. Special applications require special ball or roller spacers. Bearings installed on horizontal shafts or continuously rotating generators and bearings used in occasions with high requirements for positioning and reliability can use strip combined cages to keep the rolling elements in the correct circumferential position .

The purpose of using cages for slewing bearings is very clear: improve bearing rotation performance and efficiency, consolidate bearing stability and reliability, improve bearing design life and service life, and solve the problems of uniform force and bearing structure under complex working conditions . Integral cage-segment cage-copper cage-steel cage-polyurethane cage-nylon cage-polytetrafluoroethylene cage-PA cage, and composite material cage.

Slewing bearing

In addition, for slewing bearings, stability and reliability are the two core indicators considered in the selection and design of slewing bearings. The main process design considerations are: structure; material; modulation hardness and quenching hardness; bearing rolling elements and The height and wall thickness ratio of the ferrule; machining accuracy; the material, structure and type of the cage, such as the integral cage, can obviously improve the rotation performance and life of the bearing; the lubrication system and the sealing system; the level of installation and debugging; the daily maintenance Frequency; application of mature design.

In order to ensure the stability of construction equipment, the design of slewing bearings pays more attention to the rationality of the structural configuration, but in many cases, gear teeth can be machined on the inner or outer ring of the bearing to simplify the structure of the drive system. In order to avoid problems, when determining the structure of the drive system, you should seek help from related personnel in the gear.

The above is the discussion on the stability of the slewing bearing. The design of pipe fittings pursues higher performance. However, in actual applications, once installation, use or maintenance is improper, various problems may arise, such as in the slewing bearing. There was a problem of excessive shaking during use. Common causes for this are loose mounting bolts, causing shaking during work; insufficient rigidity of the steel structure supporting the slewing bearing, elastic deformation during loading, resulting in overall swaying of the slewing bearing, etc., in order to ensure the normal use of the slewing bearing, if you If there is shaking in the machine, you must stop the machine for inspection in time to prevent long-term shaking from causing greater damage to the slewing bearing.

What should I do if the slewing ring is rusted? Ways to prevent rust of slewing bearings?

/分类： /作者：

Slewing bearings are important parts in many modern machinery and equipment, because their performance is more unique than other mechanical parts, including significant advantages in anti-corrosion performance. However, if the slewing bearing is not produced in strict accordance with the cleaning and anti-rust regulations and the requirements of the oil seal and anti-rust packaging, the bearing parts in the processing process and the finished bearing products after assembly shall be treated with rust; or the anti-rust used in production. The quality of products such as rust lubricating oil and cleaning kerosene does not meet the requirements of the technical regulations, and the use of inferior anti-rust lubricating oil will cause the bearing to rust. So what can be done to prevent it from rusting? Today, the editor will share with you several ways to prevent the rust of turntable bearings.

　　

　　 1. Surface cleaning method

　　

　　Cleaning must be based on the nature of the surface of the rust-prevented material and the prevailing conditions, and an appropriate method must be selected. Commonly used are solvent cleaning method, chemical treatment cleaning method and mechanical cleaning method. When the surface is dry and clean, it can be dried with filtered dry compressed air, or dried with a dryer at 120~170℃, or dried with clean gauze.

　　

　　 2. Method of applying anti-rust oil

　　

　　 1. Brushing method

　　

　　This method is suitable for slewing bearings or special-shaped bearings that are not suitable for immersion or spraying. When brushing, it is necessary to pay attention not to accumulate rust prevention oil, and of course to prevent leakage.

Slewing ring 

　　2, spray method

　　

　　Some large slewing bearings cannot be oiled by the immersion method, and generally use filtered compressed air with a pressure of about 0.7Mpa to spray in a clean air place. The spray method is suitable for solvent-diluted anti-rust oil or thin-layer anti-rust oil, but complete fire protection and labor protection measures must be adopted. This method is mostly used for rust prevention of some large slewing bearings.

　　

　　3, soaking method

　　

The slewing bearing is soaked in anti-rust grease, and a thick layer of anti-rust grease can be adhered to its surface. The thickness of the oil film can be achieved by controlling the temperature or viscosity of the anti-rust grease, and this layer of grease can effectively isolate it from The contact of air achieves the effect of rust prevention.

　　

　　 The above are a few ways to prevent rusting of slewing bearings. I hope everyone can help after reading them. In addition, when we use the bearing, do not directly touch the bearing with your hands, because when sweat contacts the bearing, a layer of sweat film will be formed on the bearing surface, which will cause electrochemical effects on the bearing and corrode the bearing. Therefore, use special tools such as special gloves or finger cots to pick up the bearing, and do not touch it directly with your hands.