Factors influencing IKO flange bearing radial clearance

1, IKO bearings and shaft neck and body of the influence of radial clearance flange bearing and shaft neck and the interference of the box body work together to make them ring expansion outer contraction and reduce radial clearance. Elected after journal and bearing fit, calculate the amount of interference, the bearing radial clearance reduction is. 2, IKO bearings work inside and outside temperature difference of the influence of radial clearance of the flange bearing leads to temperature rise due to friction generates heat. Cooling area below the outer ring of bearing inner ring heat dissipation area, makes the temperature lower than the temperature of the inner ring and outer temperature difference. Temperature so that the expansion of the inner ring is greater than the outer ring caused by bearing radial clearance of the expansion of the quantity decreased. 3, journal, IKO bearings, and housing materials different linear expansion coefficient of radial clearance and shaft neck flange bearing materials, the influence of housing materials is different, different linear expansion coefficient, working temperature will cause bearing clearance changes. Cause bearing clearance increases or decreases, and expansion coefficient depends on the shaft, bearing, box the size of the linear expansion coefficient. If the journal material is greater than the linear expansion coefficient of bearing steel linear expansion coefficient, or the linear expansion coefficient of material of the bearing steel or less linear expansion coefficient, radial clearance will decrease, windage variation. 4, working load of IKO bearing radial clearance under the influence of the flange bearings in the radial loading make the inner ring produces elastic expansion and radial clearance decreased; Outer ring produce elastic expansion, radial clearance increases. Due to the outer diameter is greater than the inner ring diameter, the result of radial load bearing radial clearance increases.