Tapered roller bearing role and use of matters

Tapered roller bearings mainly bear radial diameter and axial joint load. Load bearing capacity depends on the outer ring raceway angle, angle greater carrying capacity. These bearings are separable bearings, rolling bearing according to the number of rows into single row, double row and four row tapered roller bearings. Single row tapered roller bearing clearance to be adjusted during installation the user; double row and four row tapered roller bearing clearance in the factory according to user requirements is given, not to be user adjusted.
Tapered roller bearings have tapered inner and outer ring raceway, Tapered Roller arranged in between. All conical surface projection lines are the same point on the bearing axis together. This design makes tapered roller bearings particularly suitable for combined (radial and axial) loads. Most of the axial load bearing capacity is determined by the contact angle α; α angle increases, the higher the axial load capacity. Angle size calculation factor e; e larger the contact angle the greater the bearing axial load greater applicability.
Tapered roller bearings are usually separated type, namely the belt roller and cage assembly of inner components can be composed with tapered conical outer inner (outer) installed separately.
Tapered roller bearings are widely used in automotive, mill, mining, metallurgy, plastics machinery and other industries.
Tapered roller bearings are devices emerged in the process of scar secondary reason is: the bearing being installed, assembled emerge inner, outer skew; or promise is being installed and the process of assembling the emergence of strikes load bearing emerge eventually forming scar .
Tapered roller bearings are device according to job specifications should stop, should not form many achievements, such as in the form of devices or methods did when, will form the bearing surface of the raceway and Gulu emerged bearing linear scar formation. Deep groove ball bearing unit using indirect response when the bearing precision, life expectancy and functionality.
Tapered Roller Bearings and other aspects of quality are better though, but bearing are precision components, its use should also be carefully carried out. No matter how high-performance bearings, if used improperly, it will not get the expected performance. Note the use of the relevant bearings were the following:
(A) maintain tapered roller bearings and surrounding clean.
    Even the eyes can not see small dust, will give adversely affect the bearings. Therefore, to keep the surrounding clean so that dust will not invade bearings.
(2), exercise extreme caution.
    In the use of tapered roller bearings to give a strong impact, it will have a scar and indentation, cause of the accident. Severe cases, crack, fracture, it must be noted.
(3), using the appropriate operating tool.
    Avoid the existing tools instead, you must use the right tools.
(4), note tapered roller bearing corrosion.
Bearing operation, the hands sweat will become rusty cause. To pay attention to clean hands operation, the best possible wear gloves.
Tapered roller bearings use hearing to identify irregular operation is a very common method, examples such as using electronic stethoscope to check certain parts feel unusual noises are experienced operator. If the bearing is in good operating condition, it emits low whining sound, if a sharp hissing sound tapered roller bearings, squeaky voice and other irregular sounds, usually means bearing in poor operating condition.
1, the tile surface corrosion: spectra showed that the concentration of non-ferrous metal element anomalies; iron spectrum, there were many non-ferrous metal components submicron wear particles; lubricants excessive moisture, acid exceeded.
2, the journal surface strain: iron spectrum in cutting abrasive or black iron oxide particles present on the surface of metal tempering colors.
3, the journal surface corrosion: spectra showed abnormal concentrations of iron, iron spectrum, there are many sub-micron particles of iron content, excessive moisture or oil acid value exceeded.
4, the surface strain: iron spectrum were found to have cutting abrasive, abrasive ingredients ferrous metals.
5, tile back fretting: spectra showed abnormal concentrations of iron, iron spectrum, there are many iron content submicron wear particles, water and oil acid abnormalities.
Lubrication conditions in the liquid, separated from the sliding surface is not in direct contact with oil, but also can greatly reduce the friction loss and surface wear, the film also has a certain vibration absorption capacity
Sharp creaking noise may be due to inadequate lubrication caused. File bearing clearance will cause metallic sound. Tapered roller bearing outer ring dent on the track will cause vibration, resulting in smooth and crisp sound, if caused by the installation of percussion scars will produce noise, this noise will be low as the bearing speed varies. If there are intermittent noise, then the rolling elements may be damaged, tapered roller bearings This sound occurs when the damaged surface is rolling out of date, bearing if contaminants often cause hissing sound, severe bearing damage will irregular and huge noise.
Bearing damage can certainly perceptible by listening to, but usually at this time has come to bearings must not be replaced immediately. Therefore, a better use of such electronic methods such as condition monitoring instruments, tapered roller bearings off the bearing pre-eruptive functioning.