Cage clearance of rolling bearing wear what effect? What are factors affecting maintains a stable?

Rolling bearing has a very wide range of USES, such as: basic function, large machinery and equipment, aviation engine, etc. , and maintains a gap will directly affect the rolling bearing lubrication, oil film, heat, noise, and the stability of the cage, the use of the rolling bearing performance has played a key role, and maintains a gap if control is not good, not only will cause unstable bearing cage and rolling body, also back to guide bearing ring collision force and the friction force increases rapidly, finally cause the damage of the cage, and even affect the service life of bearing. The cage clearance on what are the specific impact of the rolling bearings? The bearing network ( Hereinafter referred to as:) For sharing is as follows: factors influencing the normal use of rolling bearing cage clearance is mainly manifested in the cage pocket and cage guide hole space design is reasonable. If under the condition of given cage guide gap, increase the pocket hole clearance will worsen, the stability of the cage and inner ring guide than outer guide are more likely to make the cage is not stable. Example: cylindrical roller bearing pocket hole clearance and the influence of the stability of cage guide clearance ratio, through the analysis, found the clearance ratio of 0. 2 to 0. At 8 cage showed good vortex stability, and with the increase of clearance ratio, maintains a centroid vortex trajectory, vortex appears instability. In a cage pocket minimum wear and minimum contact force between hole and the ball cage pocket hole clearance for target optimization, the results show that when the cage pocket hole clearance guide clearance ratio less than 1, the cage will cause instability, but this cage and the pocket hole contact force is minimal. Through the cage clearance on rolling bearing wear, research on the effects of different cage clearance on its wear experiment, found the cage, ball, such as traces of wear, compare, pocket guide clearance hole clearance under the condition of cage and ball wear and tear, the following conclusions: ( 1) Guide clearance, pocket hole clearance affects the cage and steel ball wear and tear, but guide the gap's influence on the cage wear a pocket hole clearance. ( 2) Guide the clearance is small, the cage guide surface wear serious, as guide clearance increases, cage guide surface wear decreases. Also affects the cage pocket guide clearance hole wear, when guide clearance design is not reasonable, adding cage pocket hole wear. ( 3) Cage guide surface and the wear of the pocket holes as pocket hole clearance increases gradually decrease. What the factors influencing the bearing cage stability? The bearing network ( Hereinafter referred to as:) Share the following: ( 1) Axial load bearing axial load is to point to form in the axis direction of the bearing load, popular said is to force bearing inner ring with outer ring. Bearing inner ring rotate during operation, the outer ring motionless, axial load as independent variables, when bearing speed maintain, with the increase of axial load, the stability of the cage to improve gradually. This is because, the increase of axial force limits the ball slide, reduced the steel ball and cage collision frequency, and because of less friction when the lubricating effect, eddy acceleration change is not big, so that maintains a relatively stable. ( 2) Radial load radial load refers to the direction perpendicular to the bearing axis load. Other conditions remain unchanged, the radial load as independent variables, while bearing inner ring rotation speed and axial load, with the increase of radial load, the stability of the bearing cage gradually reduced. This is because, increasing the radial load outside the cage and ring interaction frequency decreases, the outer ring of cage motion function abate, reduces its stability. ( 3) And bearing rotational speed when the bearing cage axial load and radial load, with the increase of bearing rotating speed, maintain stability gradually increase. This is because, the increase of rotational speed can make the cage in the process of movement are led surface rapidly to the outer ring, the cage from the outer ring lead surface contact between the frequency increase; At the same time, under the high speed, the ball and cage geometry coupling is better, so the cage movement is relatively stable. ( 4) Than the other conditions remain unchanged, clearance, bearing clearance ratio as the independent variable, when bearing load and inner ring speed must, with the increase of clearance ratio, maintain stability decreases gradually. This is because, clearance ratio increases with the ball bearing cage collision is increased, and the reaction is symmetry, therefore results in the decrease of the stability of the bearing cage. ( 5) Outside, outside groove curvature coefficient of bearing groove curvature coefficient is one of the important geometric parameters of the bearing, have various effects on the bearing. Other conditions remain unchanged, outside groove curvature coefficient for the independent variable, with the increase of outside groove curvature coefficient, maintains the stability of the increased gradually after the first decreases. This is because, under the condition of bearing high speed rotation, outside groove curvature coefficient increase will affect the formation of oil film between each element, so the instability of cage have obvious difference. ( 6) And bearing inner groove curvature coefficients in groove curvature coefficient is one of the important geometric parameters of the bearing. Within other conditions remain unchanged, groove curvature coefficient for the independent variable, as the inner groove curvature coefficient increases, the stability of the cage to increase after the first down. The reasons and the influence of groove curvature coefficient is the same.