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/*728*90 created on 2018/5/16*/ var cpro_id = "u3440131"; Home>Bearing knowledge> "Using equipment FAG imported bearings" should pay attention to the problem "Using equipment FAG imported bearings" should pay attention to the problem
First, the use of bearings should pay attention to the following matters: /*250*250 was created on 2017/12/25*/ var cpro_id = 'u3171089';
1, adhere to the bearing and its surrounding environment, even if the invisible shallow dust into the bearing; will also add bearing wear; oscillation and noise.
2, the use of equipment should be carefully and carefully not allowed to force the stamping; does not allow the hammer to directly hit the bearing; does not allow the pressure to pass through the rolling body.
3, the use of appropriate, accurate equipment, try to use special things; try to avoid the use of cloth and short fibers and the like.
4, to avoid the corrosion of the bearing directly when taking the bearing by hand; to wash away the sweat on the hand; and apply high-quality mineral oil before operation; especially in the dry season and summer to pay attention to rust.
However, under certain special operating conditions; FAG imported bearings can obtain a better life than traditional accounting; especially in the case of light loads. These special operating conditions are; when the rolling surface (trajectory and rollover) is A smooth oil film usefully separates and confines the external damage that can be caused by contaminants. In fact; under ambition; the so-called Eternal bearing life is achievable.
Second, the bearing life:
The number of revolutions of the rolling bearing in revolutions (or the number of hours of operation at a certain speed); the boundary: the bearing within this number of hours; should start fatigue damage on any of its bearing rings or rollovers (drop or Incomplete). But whether in laboratory experiments or in practice, it can be seen significantly; the appearance is the same under the same working conditions; the life expectancy is very different. There are also several different definitions. FAG imported bearings "life"; one of them is the so-called "operating life"; it indicates that the actual life of a bearing before it can be damaged is caused by wear and damage and is generally not caused by fatigue; Wear, corrosion, seal damage, etc. are formed.
Third, the reasons for the formation of bearing damage and countermeasures:
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Most of the bearings are damaged due to a number of loads beyond the original estimate; non-useful seals, too small bearing clearances caused by over-tightening cooperation, etc. Any of these elements have their particular damage type and Special traces of damage will be left. Thus; inspection of the bearing of the damaged shaft; in most cases, the cause of its ability can be found; in general; one third of the bearing damage is caused by fatigue damage; One of the points is due to poor smoothness; the other third is due to contamination of the contaminant into the bearing or equipment disposal.
However, these types of damage are also related to the industry. For example, 85% of the pulp and paper industry is due to poor smoothness or contamination to form bearing damage rather than data fatigue.
ǘ(7) 蛴攵 蛴攵 蛴攵 撸 撸 1, peeling load is too large: check the size of the load. Correct the load conditions. Equipment failure (non-linear) view the size of the load and the bearing used again. Correct the load conditions.
2. Torque load foreign matter intrusion, water ingress: improved sealing equipment, anti-rust during stoppage. Improve the appearance of the paired tumbling parts. The dark surface with slight wear appears; the dark surface has many deep to the inside. -10m small cracks; and a small drop in a large area (small peeling) cracking equipment was impacted. Improved sealing equipment.
3, poor smoothness, smoothing agent is not suitable: the use of the appropriate viscosity of the smoothing agent, improved smooth method. Pair of tumbling parts of the appearance of the surface is not good. Foreign matter into the smoothing agent. Choose a suitable smoothing agent.
4, FAG imported bearing clearance is not appropriate. Bearing box accuracy is not good; bearing box rigidity is uneven: check the accuracy of the shaft and bearing box. View clearance.
5. The deflection of the shaft is large, the corrosion point, the scratch point and the indentation view the accuracy of the shaft and the FAG inlet bearing box. When the bearing receives the load rotation; the raceway surface of the inner ring and the outer ring or the rolling surface is exhausted due to rolling There is a fish scale-like peeling appearance. The so-called card injury is due to the appearance of some minor burns caused by sliding surface injuries. The smoothing agent is poorly formed and the appearance is rough. The peeling smoothing agent is not suitable. Improve the smoothing agent and smooth method.
6, the development of the appearance of external deformation. Foreign body bite. The load is too large. The use of poor. Improve equipment methods (select hot loading; use the appropriate things folder). FAG imported bearing equipment in place; the ribs are supported. Cracking refers to a slight cracking due to the slight impact or excessive load on the rib or roller angle of the raceway wheel. The card is over-loaded and over-pressed.
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Automatic Handy Dryer is an electric machine found in public bathrooms. Hand dryer works automatically using an infrared sensor. Hand washing is an important part of hygiene, so an effective method of drying the hands is necessary. Automatic Hand dryer is made of white plastic, wall mounted in public washroom.
Source: China Bearing Network Time: 2013-11-14