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Method of Preventing Rust of Slewing Bearings


Slewing bearing is an important part in many modern mechanical equipment, because its performance is more unique than other mechanical parts, including significant advantages in anti-corrosion performance. However, if the requirements of cleaning and anti-rust regulations and oil seal anti-rust packaging are not strictly followed during the production of slewing bearings, the bearing parts during processing and the finished bearing products after assembly are subjected to anti-rust treatment; or the anti-rust treatment used in production The quality of products such as rust lubricating oil and cleaning kerosene cannot 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 I do to keep it from rusting? Next, we will share with you several methods to prevent the slewing bearing from rusting.


Ⅰ. Cleaning method of slewing ring surface


The cleaning method must be selected according to the nature of the surface of the anti-rust and the conditions at that time. Commonly used 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 a clean gauze.


Ⅱ. The method of applying anti-rust oil to the slewing ring


1. Brushing method


This method is suitable for slewing bearings or special-shaped bearings that are not suitable for immersion or spraying. When brushing, care should be taken not to produce anti-rust oil accumulation, and of course to prevent leakage.


2. Spray method


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


3. Immersion method


Immerse the slewing bearing 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. This layer of grease can effectively isolate the Contact with air to prevent rust.


The above are several methods to prevent rusting of slewing bearings. We hope you can help after reading them. In addition, when using the bearing, do not directly touch the bearing with your hands, because when sweat comes into contact with the bearing, a sweat film will be formed on the bearing surface, and the sweat film will cause electrochemical action 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.