The reason of slewing bearing rust.

1, the quality is not up to standard

In the production process of sleigh bearing, some production enterprises in order to obtain greater profits, the use of non-pure materials, and can not meet the needs of the use of sleigh bearing, so that the bearing quality is not up to standard, accelerate the corrosion of sleigh bearing. The use of slewing supports is itself in a bad environment, which can easily lead to danger.

2, use but not maintenance

Slewing supports are often used in large rotating machines, due to the harsh use environment, slewing supports in the process of use can not be cleaned in time, can not be reasonably maintained, resulting in corrosion.

The material selection of the slewing bearing is made of carbon structural steel, and rust will occur after a long time, which will affect the normal operation of the equipment and even cause some damage to the equipment. It is very important to prevent the slewing bearing from rusting

The preventive measures of slewing support rust

1. Soaking method

For some small bearings, it can be soaked in anti-rust grease, which can make its surface adhere to the upper layer of anti-rust grease, thereby reducing the probability of rust.

2, brush coating method

For some large slewing supports can not use soaking method, you can be brushed, brushing pay attention to evenly spread on the surface of the slewing support, do not produce accumulation, of course, also pay attention not to miss coating, so as to uniform rust prevention.

3. Spray method

When the slewing bearing is used in some large anti-rust substances, it is not suitable for using the immersion method to apply oil, and can only be sprayed. Spray method is suitable for solvent dilution type anti-rust oil or thin layer anti-rust oil. Generally spray with filtered compressed air at a pressure of about 0.7Mpa in a clean air area.

The maintenance method of rotary bearing rust

1. Before using the slewing support, sufficient grease should be added to the product to reduce the damage of the anti-rust material on the surface of the slewing support due to wear.

2, the use process should often remove the debris on the surface of the slewing support, check whether the slewing support seal is aging, cracked, damaged or separated. In any of these cases, the seal should be replaced in time to prevent the loss of debris and grease in the raceway, and the corresponding grease should be applied after replacement to avoid the rolling body and raceway hair stuck or rust.

3, the slewing support in use, to avoid water into the raceway caused by rust, prohibit direct erosion with water. During use, hard foreign bodies should be strictly prevented from approaching or entering the meshing area, so as not to cause tooth injury or unnecessary trouble.

Slewing bearing rust in addition to quality problems, to a certain extent is caused by improper use and maintenance. Quality problems can be avoided by choosing a good manufacturer, but use and maintenance requires users to pay more attention to them at ordinary times, as the saying goes. Regular maintenance can extend the service life of the slewing bearing and reduce the risk and cost of use.

Precautions for loading, unloading and storage of slewing supports

1, the slewing bearing must be carefully loaded and unloaded.

2, transport and storage to horizontal placement is appropriate, storage must be placed in a dry room.

3, lifting should use the ring screw, a horizontal way, and do not collide, especially in the radial direction.

4, the outer surface of the sleeving bearing is coated with anti-rust agent, the anti-rust period is generally 6 months, for more than 6 months of storage should be re-rust-proof packaging or other storage measures.

Preparation before installation

(1) Unpack and check the attached certificate and the label on the slewing bearing to confirm that it is consistent with the selected model.

(2) Carefully check the appearance to confirm that the slewing support has not suffered great damage during transportation, such as serious rust, deformation, etc.; Confirm that there is no soft belt mark and gear runout position mark (gear requires quenching or customers have special requirements).

(3) The installation bracket should have sufficient stiffness to prevent the installation of the slewing support due to the insufficient steel of the bracket, resulting in deformation resulting in the slewing support not working normally.

(4) The installation plane must be clean and flat, without iron filings, raw edges or other debris, and the plane can meet the requirements of the following table (single volleyball type).

(5) The bolts that are suitable for the strength registration should be selected for the installation of the slewing support. Bolts and nuts shall meet the requirements of GB3098.1 and GB3098.2 standards, and spring washers are prohibited.

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