According to site conditions and conditions of use and the environment used to select size, precision, combined with appropriate INA bearings is a prerequisite to ensure that the bearing service life and reliability. Three are allowed:
1, allows speeds: installed properly, lubrication good environment, allowing for INA bearing limit speed of 0.3-0.5 times times. Under normal circumstances, to 0.2 times the speed limit of the most desirable.
2, allowing tilting angle: tapered roller bearings are generally relatively tilt the housing bore axis is not allowed, such as tilt, maximum of 2 '.
3, allowed temperature: under normal load, and with high temperature performance of lubricants and lubrication under adequate conditions, INA bearings in general allow at-30 degrees centigrade-150 ℃ ambient temperature.
INA bearing and shaft in General for transition fit, washer and bearing hole in General for a clearance fit, bi-directional in the axis of the bearing rings should be fixed on the axis to prevent relative to the axis scroll bar. If mounted backwards, INA bearing not only does not work correctly, and all the mating surfaces would be subjected to severe wear. Box shell holes more deeply, thousand tables can also be used to lengthen the first overhaul. Installation method of the bearing, axial rotation is the case under most normal circumstances, so the inner ring and shaft meet to win tie, the bearing outer ring and bearing room fit for a clearance fit.
In addition, washer and bearing bore of the bearing or the gap should be 0.2-0.5mm to compensate parts machining and installation errors caused by imprecise, when the bearing in operation when central offset, this gap that would ensure its automatic adjustment, avoid touching the friction so that its normal functioning. When bearings are mounted precisely, automatically adapted to move its seat to move in, ensure that the moving body in upper and lower circle Raceway. When installing the INA bearing, overhaul the shaft washer and verticality of the axis of the central line. Otherwise, the INA bearing caused by severe injuries. Approach is to dial fixed on the tank shell face, touch the top of the table at the top edge of the bearing ring raceway of rolling bearings, side observation indicator pointer, pointer to swing, description of the shaft washer and axle center line is not vertical.
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