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/*728*90 created on 2018/5/16*/ var cpro_id = "u3440131"; Home>Bearing knowledge> Protection and smoothing of anti-friction bearings in SKF bearings Protection and smoothing of anti-friction bearings in SKF bearings
The proper smoothness of anti-friction bearings in SKF bearings is critical to their successful operation. For normal or sleeve-type bearings; there are different principles in different theories. In order to protect the party Friction bearings; it is necessary to know and choose these principles. /*250*250 was created on 2017/12/25*/ var cpro_id = 'u3171089';
After thoroughly understanding these principles; you should have a point to think about. We quote SKF Bearing Industries' "Improve Bearing Smoothing Strategy" in the words: "...smoothing properties; uniquely smooth grease characteristics; not enough to just standard To determine the basis of the ". standard as long as a product is physically succinct; perhaps also contains a chemical clarification. Useful to best clarify the problem; but the standard is simply not in contact with useful.
The anti-friction bearings in all SKF bearings are basically rich in two hardened steel rings; a plurality of hardened balls or rollers; and a separate frame or holder that separates the rollers or rollers. These types are in use. It is divided into many varieties. Some types; such as needle-like column bearings; there can be no inner ring; the roller moves directly on the hardened shaft.
Types of anti-friction bearings in SKF imported bearings:
Anti-friction bearings are divided into two main types. They are ball bearings and roller bearings. Let us know each other; because the manufacturer and the specific use of the bearing are different; according to these fundamental structures and evolved many different varieties.
Smooth function:
Anti-friction smoothing agents have the following main functions1. Sliding contact between the smooth retainer and some other bearings.
2. Any contact between a smooth race and a roll that is not a true roll.
3. Sliding contact between the smooth roller and the guide in the roller bearing.
4. Everything in a smooth bearing is a true tumbling contact.
The non-essential functions are:
5. Highly beautiful appearance is not corroded.
6. Help the sealing cover to protect foreign materials. Smooth grease has magnetic function.
7. Supply a heat conduction (cold) method.
Smoothing of oil in the oil-smooth bearing has the following elements: bearing depiction and load, oil viscosity; amount and bearing speed.
When the amount of oil just forms a film on the touch surface, the friction torque is minimal. However, the oil is too much. When the viscosity of the oil is too high, the friction increases. However, in order to maintain safety and smoothness, little attention is paid to the hope of conflict loss; By majority advantage. This means there is more oil; usually heavier oil; it will be used to reduce the loss caused by transpiration or leakage.
However, it is generally important to note that heavy-duty bearings and low-speed bearings usually require heavy oil. Light-load and high-speed bearings require less oil.
Smooth grease is used to apply smooth grease to anti-friction bearings; high pressure theory is not required; unless it is used with great care, high pressure can damage the bearing; dregs smooth grease; excessive smooth grease causes high temperature and risks around the bearing Form an invisible environment. In most applications; ball or roller bearings can be completely smooth; if the smooth grease level accounts for one-third to one-half of the bearing capacity. The excess will usually be discharged by the sealed shell and spoiled.
In practice it is necessary to use more than the recommended amount of smooth grease. When the required torque is low; only a very small amount of smooth grease is required to finish the smoothness of the bearing. When the speed is very low and the bearing is exposed to dust or When wet, the bearing can be almost filled. The bearing is usually more frequent and smooth under the conditions of high speed and high temperature.
Store smooth grease in a clean container. Fill the bearing with a smooth short grease or smooth grease gun. Stick to the smooth grease container. The smooth grease on the bearing should not be overfilled. The smoothing agent will be filled. Excessive bearing cartridges emerge; absorb dirt and cause trouble. Too much smoothing agent can also cause the bearing to overheat. This appearance is unique and easy to occur on the high-speed shaft.
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Protection and smoothing of anti-friction bearings in SKF bearings
Source: China Bearing Network Time: 2014-10-19