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Installation Of Angular Contact Ball Bearing
Installation Of Angular Contact Ball Bearing
2021-12-25
ホイストの設置手順
ホイストの設置手順
2021-12-25

Influence Of Environmental Conditions On Installation Accuracy Of Koyo Imported Bearings

Koyo Imported Bearings

The ambient temperature directly affects the selection of lubricating grease. 一般的に言えば, when the service temperature is lower than 60 ℃, の ベアリング oxidation reaction is not obvious; でも, when the temperature exceeds 60 ℃, the oxidation rate increases exponentially for every 10 ℃, Koyo Imported Bearings and the service life of lubricating oil may be halved.

In order to reduce the temperature of lubricating oil in lubricating parts or lubricating system of Koyo bearing, it can be considered to install cooler or heat sink to prolong Koyo Imported Bearings the service life of lubricating oil.

The humidity in the atmosphere also has a certain impact on the selection of lubricating oil. Imported bearings are easy to cause rust on the metal surface of mechanical parts under the condition of high humidity in the atmosphere, so Koyo Imported Bearings the lubricating oil with antirust agent should be selected. When the salt content in the atmosphere is high, the lubricating oil with anti rust ability to seawater should be selected.

1. Various mechanical scars, such as abrasion, scratch, crush and collision, ベアリングの取り付け不良の原因となります, eccentric load and stress concentration, Koyo Imported Bearings and reduce the rotation accuracy and service life.

Influence Of Environmental Conditions On Installation Accuracy Of Koyo Imported Bearings

2. Rust, black skin and pitting. The latter two are defects that are easy to store moisture and dirt, which are easy to develop into rust. Corrosion is the pollution source leading to poor installation, 早期摩耗と疲労. Serious corrosion will Koyo Imported Bearings scrap Koyo bearings.

3. 各種クラック, 原材料割れなど, 鍛造クラック, 熱処理割れ、研削割れ, will become a source of stress concentration and expand rapidly in the later operation of the bearing, resulting in bearing fracture, which has a great impact on the service life and workability of Koyo Imported Bearings the imported bearing. 実際には, for Koyo bearings with important applications, the bearing factory has conducted 100% magnetic or radiographic inspection on its components.

4. 剥がして折り畳む, the local combination of these two defects with the base metal is not firm, and decarburization or carbon deficiency often exist around them to Koyo Imported Bearings varying degrees. The material is easy to collapse, dent or wear, which is very unfavorable to the service life and accuracy of the bearing.

Installation of fixed end front Koyo bearing on the shaft:

thoroughly clean the bearing with clean cleaning kerosene. For grease lubrication, first inject organic solvent containing 3% 〜 5% grease into the Koyo Imported Bearings bearing for degreasing and cleaning, and then fill a certain amount of grease into the bearing with an oil gun; Heat the bearing to raise the temperature by 20 〜 30 ℃, and install the inlet bearing into the shaft end with an oil press;

Press the set sleeve on the shaft and press it against the end face of Koyo bearing with appropriate pressure to position it axially; Roll the belt of the spring scale on the Koyo Imported Bearings outer ring of the bearing, and check whether the specified preload changes greatly by measuring the starting torque.

Centripetal thrust ball bearing is a precision part, so it is required to be quite cautious in use, あれは, it uses high-performance bearing. If it is not used properly, it can not achieve the expected performance effect, and it is easy to damage the bearing. したがって, pay attention to the following matters when using bearings:

でも, under some special operating conditions, the centripetal thrust ball bearing can obtain a longer life than the traditional calculation, especially under light load. These special operating conditions are the surface damage Koyo Imported Bearings that may be caused when the rolling surface (track and rolling parts) is effectively separated and limited by a lubricating oil film. 実際には, under ideal conditions, the so-called permanent bearing life is possible.

Grease lubrication includes the sealing method of filling grease in the sealed bearing in advance, and the filling grease supply method of filling an appropriate amount of grease in the shell and replenishing or replacing it at regular intervals. 加えて, the centralized grease supply mode with pipes connected to each lubrication point is also adopted for the machinery with multiple centripetal thrust ball bearings that need lubrication.

Grease lubrication can be filled with grease for a long time without supplement, and the structure of its sealing device is simple, so it is widely used. Oil lubrication is relatively simple.

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