Hollow shaft and rolling bearing equipment

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Hollow shaft and rolling bearing equipment

Source: Bearing network time: 2014-03-12

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Industrial fine grinding mills use rolling bearings; they have been widely implemented in China; in terms of saving electricity consumption, improving production value, saving smooth oil, reducing repairs, reducing pollution, etc.; receiving outstanding results. Some current manufacturers Imitate the choice of rolling mills for rolling mills; there are many unreasonable points in the equipment mode of hollow shafts and rolling bearings; the manufacturers of grinding mills have brought certain disadvantages in the future work. In order to deal with this problem; The best equipment method for rolling bearings of mill hollow shaft equipment is proposed. {TodayHot}
The old method of grinding hollow shaft equipment rolling bearing is to process the hollow shaft into the inner diameter of the suitable bearing; the bearing thermal equipment, the bearing part, and the outer ring of the bearing have a top sleeve; the top sleeve is placed in the discharge spiral cylinder (or the inlet and outlet lining) Set) bolted to the hollow shaft; compacted. During the grinding process; the inlet and outlet spiral barrels and fixing bolts are often loose; the top sleeve and the hollow shaft are displaced; the dust will be between the hollow shaft and the top sleeve. In the gap into the bearing box; make the smooth grease dirty; cause smoothness; the formation of the damaged appearance of the bearing has an attack.
In order to overcome some of the above defects; let us pass a few years of theory and exploration; portray a new type of equipment approach; and in some applications manufacturers have been outstanding applications.
The method is as follows: the diameter of the rolling bearing of the hollow shaft device of the mill is thickened; the thin oil cooled by the hollow shaft transfers the temperature of the hollow shaft to the bearing to a normal range below 60 degrees.
The advantages of this type of housing are as follows:
1. Thin oil is smoother than grease smooth; the friction coefficient of the bearing is minimized; the power saving effect is better. {HotTag}
2. The normal working temperature of the bearing; the temperature of the bearing is smoother than that of the dry oil; the service life of the bearing is extended.
3. The lower seat of the bearing is equipped with oil level investigation oil mark; the operator can see the oil level bump at any time; it can make up the oil quantity in time; avoid the smoothness due to lack of oil; avoid the occurrence of bearing damage.
4. The oil chamber of the bearing housing contains oil; the outer diameter of the rolling bearing of the equipment can be reduced (under the premise that the equipment inlet and outlet equipment meets the strength and torque); the hollow shaft and the inlet and outlet spiral barrel end face are provided with a flange; The spiral cylinder flange is connected. The hollow shaft is made of thick and thin end face; a compression bearing inner ring flange is provided; the bearing axial direction is prevented from being thrown out.
The second advantage is that the outer sleeve of the bearing is removed; the dust is prevented from entering the bearing housing; the excellent oil quality is adhered to; the service life of the bearing is ensured; and the work is safe and reliable.
The third advantage is that the diameter of the rolling bearing is increased; the diameter difference is formed with the uniform outer diameter of the hollow shaft; the smooth room is selected for the thin oil; the oil level is improved; the thinning oil spill has received a certain effect.
The fourth advantage is that the diameter of the hollow shaft of the rolling bearing is thickened; the radial spacing between the rolling bearing and the inlet and outlet spiral cylinder is increased; it has a certain effect of heat insulation and cooling. The cooling and extension life of the bearing Must play a role.
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