LYHY Shaft Bearings

Precision spindle bearings

2015-11-16

Miniature ball bearing with a wide range of uses.Suitable for high speed bearing rotational friction torque, low vibration, low noise, low requirements of the product.Products characteristics in super small aperture of micro Thin section bearings in the, diameter φ 2mm following of micro bearing has metric 68, and 69, and 60 series total 18 specie... View Details

Motor shaft bearings code structure

2015-07-24

Prefix code - parts of rotary bearing .The basic code - the main feature type and size of shaftbearing.Rear code - the accuracy properties and material of shaft bearing. Motor shaft bearing using smooth metal ball or roller and lubrication of the inner ring and the outer ring to reduce the friction of metal surface. These ball o... View Details

Thrust bearings Installation Notes:

2015-04-08

Thrust bearing assembly primarily axial load, its wide application. Thrust bearing assembly primarily axial load, its wide application. Although the thrust bearing installation is relatively simple, although the thrust bearing installation is relatively simple, but the actual repair is still often an error occurs, the tight and loose ring ring bear... View Details

Four common types of motor shaft bearing

2015-03-11

Motor shaft bearings aka bearing of motor or motor bearing,which is a kind of special bearings specially applied to motor or motor. shaft is the use of a support shaft parts, it can guide the axis of rotation,withstand the shaft idle units, bearing concept is very broad. There are four types of motor shaft bearings commonly used, namely ... View Details

Tapered roller bearings for vibration detection method maintenance

2014-12-09

Maintenance is a prerequisite for good thin section angular contact bearings tapered roller bearing operation, maintenance is commonly used for bearing lubrication, and in reading how to choose the bearing lubrication, in the understanding under the premise of bearing lubrication of the bearing system also understand conservation necessary, let'... Maintenance is a prerequisite for good thin section angular contact bearings tapered roller bearing operation, maintenance is commonly used for bearing lubrication, and in reading how to choose the bearing lubrication, in the understanding under the premise of bearing lubrication of the bearing system also understand conservation necessary, let's look at how the bearing lubrication maintenance.1. Keep bearing lubrication before clean pair of tapered roller bearings should be checked first clean the bearing surface, and then carefully check the bearing seal and the surrounding parts, if the poor have shown symptoms, be sure to replace the lost, poor seal cause damage, so bearings cloud caused abnormal equipment downtime.2. Do not let the cover note bearing exposure to environmental contaminants or moisture exposure bearing checking tapered roller bearings. If the work is interrupted, should be oiled paper covered plastic sheet or similar material has been machine. If cleaning without masking the bearing under check is performed without removing the case and may need to take a brush to coat with oil coated with solvent cleaning, then a piece of lint-free cloth or compressed air (be careful not to let to start rotating bearing assembly). In a small mirror and a similar kind of probe used in the dentist to check the track surface bearings, the retainer and beads. Encryption can not clean or dust cover flanged ball bearing; you can only wipe the external surface. If the bearing was damaged case is to be replaced. Replace the bearings than in the regular maintenance shutdown period selected front bearing damage due to the loss of a sudden shutdown of more economic and more.3. Check the bearing lubricant Lubricant is very important not only for bearings, but also for all the bearings. Note, however, tapered roller bearings should not add too much grease. Then is to replace the bearing lubricant. Use oil-lubricated bearings in addition to after the old oil spilled. If you can, should and then poured fresh oil and let the machine a few minutes at low speed rotation. Residual oil to collect as much as possible contaminants, and then spilled oil in addition to these. The use of grease lubricated bearings in the replacement of grease, used in addition to Joe should avoid contact with the cotton material to any part of the bearing. Because these residual fibers may be wedged in between rolling parts and cause damage, especially bearing applications should pay more attention to this issue.Waviness component in the case of a snug fit between the bearing ring and the bearing or shaft, the bearing ring may be fitted with the shape of the adjacent member is deformed. If there is distortion, it may lead to vibration during operation. Accordingly, the bearing and the shaft machined to the required tolerance is very important.Local damage due to operation or installation error, a small part of the bearing raceways and rolling elements may be damaged. In operation, the bearing member across the damaged produce a particular vibration frequency. Vibration frequency analysis can identify the damaged four point contact ball slewing bearing components. The vibration behavior of applications in many applications, the same rigidity and stiffness of the surrounding structure bearings. Because of this feature, as long as the correct choice of bearings (including pre-load and clearance) and its configuration in the application, it is possible to reduce the application of vibration. View Details

Bearing parts heat treatment

2014-12-04

Bearing parts after heat treatment of common quality defects are: hardened microstructure overheating due to heat, quench cracks, hardness is not enough, heat deformation, surface removal, soft points.1. overheat {TodayHot}From the mouth of the reali slim bearings parts coarse microstructure was observed after quenching overheating. But to determin... Bearing parts after heat treatment of common quality defects are: hardened microstructure overheating due to heat, quench cracks, hardness is not enough, heat deformation, surface removal, soft points.1. overheat {TodayHot}From the mouth of the reali slim bearings parts coarse microstructure was observed after quenching overheating. But to determine the exact extent of overheating must observe the microstructure. If there is coarse acicular martensite in GCr15 steel hardened tissue, the tissue was quenched overheating. Causes may be general overheating quenching temperature is too high or too long due to heat insulation; it may be due to the original organization banded carbide serious, low carbon zone between the two with the formation of local martensite needles thick, caused by local overheating. Overheating tissue retained austenite increased size stability. Since the quenched structure overheating, coarse crystal steel, will result in decreased toughness of parts, reduce the impact resistance, the bearing life is reduced. Even cause severe overheating quenching cracks.2. Less heatQuenching temperature is low or poor cooling will occur in the microstructure trust's tissue than standard, known less heat tissue, which decrease in hardness, wear resistance drastically reduced, affecting spherical roller bearing life.3. quenching cracksBearing parts in the quenching process due to internal stress cracks formed called quenching cracks. There are reasons for this crack: As the quenching temperature is too high or too fast cooling, thermal stress and the stress of metal mass volume change is greater than the resistance to fracture strength steel; original work surface defects (such as surface micro-cracks or draw marks) or steel internal defects (e.g. inclusions, serious non-metallic inclusions, the white point, residual shrinkage, etc.) formed during quenching stress concentration; severe surface decarburization and carbide segregation; insufficient parts after quenching and tempering or timely tempering; cold-stress caused by the previous process is too large, folding forging deep turning marks, sharp edges and other oil groove. In short, causes the quenching cracks may be one or more of the above factors, the existence of internal stress is the main cause of quenching cracks. Quenching cracks deep and slender, straight fracture, fracture surface color without oxidation. It is often in the longitudinal direction of the thrust roller bearing ring or annular flat crack crack; shape on the ball bearings are S-shaped, T-shaped or ring. Organizational characteristics quenching cracks are cracks on both sides of decarburization phenomenon, a clear distinction with the forging cracks and the material cracks. View Details

shaft bearings

"Shaft Bearings"

"Shaft Bearings"