Analysis of the precautions and fault reasons for tapered bearing race

As we all know, cylindrical roller bearings are a very common bearing in large machinery. It plays a big role. Then tapered bearing race also plays a big role. Tapered bearing race has conical inner and outer rings. Raceway, tapered rollers are arranged between the two, so do you know the precautions for the use of tapered bearing race? Let me explain in detail below.

All projection lines of the conical surface converge at the same point of the bearing axis. This design makes the tapered bearing race suitable for compound loads. The axial load capacity of a bearing is mostly determined by the contact angle α; the larger the angle α, the higher the axial load capacity. The size of the angle is expressed by the calculation factor e; the greater the value of e, the greater the contact angle, the greater the applicability of the bearing to bear axial loads. Tapered bearing race is usually a separate type, that is, the cone inner ring assembly consisting of the inner ring with roller and cage assembly can be installed separately from the cone outer ring.

Tapered bearing race is widely used in automobile, rolling mill, mining, metallurgy, plastic machinery and other industries. Although the quality of tapered roller bearings is better, rolling bearings are precision components, and their use must also be carried out accordingly. No matter how high-performance bearings are used, if used improperly, the expected high performance will not be obtained.

A. Notes on the use of tapered bearing race
1. Keep the tapered bearing race and its surroundings clean. Even small dust that is invisible to the eyes can have a bad effect on bearings. Therefore, keep the surrounding clean, so that dust will not invade the bearing.
2. Use with care. When the tapered bearing race is given a strong impact during use, it will cause scars and indentations, which will cause the accident. In severe cases, cracks and breaks may occur, so care must be taken.
3. Use appropriate operating tools. Avoid using existing tools instead, you must use appropriate tools.
4. Pay attention to the corrosion of tapered bearing race. When operating tapered bearing race, sweat on your hands can cause rust. Pay attention to use clean hands, try to wear gloves.

B. the cause of tapered bearing race failure
Tapered bearing race uses hearing to identify irregular operation is a very common method, such as the use of electronic stethoscope to detect abnormal noise of a part is used by experienced operators. If the tapered bearing race is in good operating conditions, it will emit a low whine, and if it emits sharp hissing tapered bearing race, squeak, and other irregular sounds, it usually indicates that the bearing is in poor operating conditions.
1. Corrosion of tile surface: Spectral analysis found that the concentration of non-ferrous metal elements is abnormal; many submicron wear particles of non-ferrous metal components appear in the iron spectrum; the moisture of the lubricant exceeds the standard and the acid value exceeds the standard.
2. Strain on the surface of the journal: There are iron-based cutting abrasive particles or black oxide particles in the iron spectrum, and the tempered color exists on the metal surface.
3. Corrosion of journal surface: Spectral analysis found that the concentration of iron is abnormal. There are many submicron particles of iron in the iron spectrum.
4. Surface strain: cutting abrasive grains are found in the iron spectrum, and the abrasive grains are made of non-ferrous metals.
5. Fretting wear on the back of the tile: Spectral analysis found that the iron concentration is abnormal. There are many iron sub-micron wear particles in the iron spectrum, and the moisture and acid value of the lubricant are abnormal.

Under the condition of liquid lubrication, the sliding surface is separated by lubricating oil without direct contact, and the friction loss and surface wear can be greatly reduced. The oil film also has a certain vibration absorption capacity.

The above is the precautions and failure reasons for the tapered bearing race. For the use process, we must ensure the lubrication of the bearing so that it can be used for a long time. If you are still unclear, you are welcome to call for consultation. Our professional technicians will answer your questions and sincerely look forward to working with you.

If you need any brand bearings or any models of bearings, please contact me!

Contact: Grace
Email: ntn@llhbearing.com
Skype:+8618668903871
MP/Whatsapp: 008618668903871
Wechat:GraceXu1234