Bearing clearance how to adjust

Bearing clearance is also known as bearing clearance. So-called bearing clearance, namely bearing in the bearing box mounted on shafts or not, will it a fixed housing, then bearing clearance is not a fixed one party do radial or axial movement of the mobile. According to the moving direction, can be divided into radial clearance and axial clearance. Clearance (in the operation of As the work clearance) About the size of the bearing fatigue life of rolling, temperature, noise, vibration etc. Standard bearing clearance is not stipulated by the state to see usage: still quite complicated problems, briefly as follows: the principle of choosing A, clearance: 1, using A tight fit, both inside and outside temperature difference is bigger, need to reduce the friction torque and deep groove ball bearings under high axial load or need improve heart function, appropriate USES large clearance group. 2, when the rotation accuracy is higher, or need to strictly limit the axial displacement, appropriate USES small clearance group. B, factors related to the clearance: 1, with the bearing inner ring and the shaft. 2, with the bearing outer ring and shell holes. 3, the influence of the temperature. Note: the radial clearance reduction amount of the real effective interference with mating parts, and the size of the suitable diameter of axle, the wall thickness of shell. Bearing clearance, feeling with your finger to check 1 rolling bearing axial clearance, the occasion of this kind of method is applied to the shaft end exposed. When the shaft end sealing or for other reasons and can't check with your fingers, can check flexible rotation axis. 2, measuring method, 1) With feeler check, operation method and the same with the method of the plug to check the radial clearance, axial clearance but should be c = lambda/( 2 sinβ) Type in the c - — The axial clearance, mm; λ— — The thickness of the feeler, mm; β— — Bearing cone Angle, °) 。 ( 2) With dial gauge inspection, with jack up shaft axis in two extreme position, the difference of the dial gauge readings for bearing axial clearance. But on the levers are not too large, otherwise shell elastic deformation occurs, even if the deformation is small, also affect the accuracy of the measured axial clearance.