5730 Led Chip,5730 Red Led Chips,White Smd Led Chips,Led Diode Lights Chip Shenzhen Huangtai Photoelectric Co.,Ltd. , https://www.huangtailightstrip.com
/*728*90 created on 2018/5/16*/ var cpro_id = "u3440131"; Home>Bearing knowledge>Conical hole bearing equipment Tapered hole bearing equipment
The tapered bore bearing can be directly mounted on the tapered journal; it can also be disassembled by the adapter sleeve; the device is on the cylindrical journal; however, under any circumstances; the inner diameter of the tapered bore can be Measured according to the reduction of bearing clearance. /*250*250 was created on 2017/12/25*/ var cpro_id = 'u3171089';
The radial clearance reduction is the difference between the radial clearance of the bearing in front of the equipment and the rear of the equipment. The original radial clearance of the bearing must be measured before the equipment; the clearance should be measured repeatedly during the equipment; until reaching and ambition The amount of radial clearance corresponding to the amount of interference reduction is also measured by the amount of pushing of the bearing on the tapered journal. About the standard taper of 1:12; radial The amount of clearance reduction is about 1/15 of the axial pushing amount; at this share; for the solid shaft; the interference of the cooperating surface is only 75% to 85% to expand the inner ring.
The radial clearance reduction of large spherical roller bearings and cylindrical roller bearings is usually measured by the feeler gauge; it is necessary to measure the radial clearance of the two rows of rollers from the two end faces separately for the spherical roller bearing; The clearance values ​​at the two rows of rollers are together; the ability to ensure that the inner and outer rings are relatively positive.
Small tapered bore bearings cannot be measured with a feeler gauge because their radial clearance is too small; the dial gauge or bearing housing can be used to measure the amount of promotion when pushing; at this moment, the change in radial clearance is emphasized; The elastic deformation of the rolling body and the raceway is not taken into account; the force used to push the bearing or the bearing seat; and their components should be roughly appropriate.
The specific operation of the large bearing when loading and unloading the sleeve is: placing the hardened liner S at the end of the disassembling sleeve; screwing the nut M tightly; and evenly distributing the hardened bolt K uniformly distributed along the circumference Tighten; until the required amount of clearance reduction is achieved. Because the sleeve is self-locking due to the conflict of its tapered surface; therefore, even if the pressing device is removed, it will not loosen; thus the heart can be removed to remove the compression nut M Replace with a fixed nut; press the open sleeve.
In the equipment, it is necessary to apply a very thin layer of lubricating oil on the cooperation surface of the withdrawal sleeve; to reduce conflicts; to facilitate the equipment. However, it is not necessary to apply thicker oil; otherwise, the dismantling sleeve will be lost and self-locking; When the pressing screw and nut are removed to replace the fixing nut; the disassembling sleeve will loosen and violate the setting orientation; the equipment error will be formed.
In addition, during the operation, the lubricant will gradually be squeezed out or escaped from the cooperation gap; the original interference cooperation of the bearing becomes loose.
When the installed bearing is removed and the equipment is placed on the journal; the nut cannot be screwed to the original position; the bearing system has been operated for a long time; the original cooperation has become loose; this is because the thread is gradually loose; Under pressure, there must be permanent eternal deformation; and there must be some cause of wear due to conflict. In this case, it is necessary to measure the radial clearance reduction, axial pushing amount or expansion value from the head when the equipment is used.
About large bearings; such as the choice of hydraulic equipment; equipment is labor-saving and convenient; more convenient when disassembled.
For all specifications of the open sleeve and the threaded shaft end, the piston type hydraulic nut can be used to mount the bearing on the tapered journal; or the split sleeve can be pressed into the predetermined orientation of the cylindrical journal. The piston type hydraulic nut The structure and operation principle are as follows: the manual oil pump presses the pressure oil into the oil cylinder (nut) through the high pressure hose; the oil cylinder is fixed on the threaded shaft end with the internal thread; the outer end of the piston pushes the end surface of the inner ring of the bearing The pressure oil drives the piston to push the bearing along the tapered journal; according to the pressure of the oil pressure gauge in the pipeline; the bearing amount of the bearing can be roughly determined.
For experienced bearing equipment personnel; the bearing is tested by hand to sense its working flexibility; the bearing interference can also be manipulated without the need for external measurements; this is especially true for small tapered bore bearing equipment; However, it must be implemented when it is strictly controlled by strict testing; and it must not be ignored.
Recommend to friends comments close window Bearing related knowledge IKO bearing smooth protection method released
Analysis of the fundamental failure mode of nsk bearing
KOYO imported bearings, the essential elements of the noise, bearing knowledge Daquan (eight)
Mistakes in TIMKEN bearing quality discrimination
This article links to http://
Please indicate China Bearing Network http://
Previous:Commonly used several methods to distinguish the quality of FAG bearings. The following is a series of additional dynamic loads from the temperature correction bearing
Tapered hole bearing equipment
Source: Bearing network time: 2014-09-11