Check the accuracy of IKO bearing installation accuracy

IKO bearing installation accuracy checking what content? Inspection should pay attention to what matters, to explain to you the following related knowledge, hope to help you. After IKO angular contact ball bearing in the spindle, the installation precision of the calibration sequence is as follows: 1, the measurement axis and IKO bearing the size of the hole, in order to determine the matching precision of IKO bearings, cooperate with requirements as follows: the outer ring and IKO bearing hole clearance fit, the interval 0 ~ + 6 microns; Inner ring and the shaft to interference fit, interference was 0 ~ + 4 microns ( At light load, high precision of 0) ; Shaft and hole surface roundness error in under 2 microns, IKO bearing the face of baffle used parallel before 2 mu m2, fixed end IKO bearing installed on the shaft will IKO bearing with clean cleaning a thorough cleaning, kerosene for grease lubrication, to contain 3% ~ 5% of organic solvent injection IKO bearing grease for degreasing, cleaning and quantitative grease oil gun will fill in the IKO bearings ( Accounts for 10% ~ 15%) of IKO bearing space volume ; Heating IKO bearings make up 20 ~ 30 ℃, IKO bearing load shaft end with the hydraulic press, Will set casing pressure on the shaft and with appropriate pressure against IKO bearing face makes its axial positioning; The lace will spring balance volume on IKO bearing outer ring, use the method of measuring start torque check is the preload of the regulation for substantial changes ( Even if IKO bearing is correct, but due to cooperate or cage, the deformation of the preload also has the potential to change) 。 3, IKO bearing - Shaft assembly loading bridge hole heating holes make up 20 ~ 30 ℃, with a continuous gentle pressure of IKO bearing - Shaft assembly into a hole; Adjust the front cover, make the front cover of fastening is 0. 02 ~ 0. 5 microns to IKO bearing outer end face as a benchmark, the dial gauge meter resistance on shaft neck surface, will beat measuring the rotation axis, request error under 10 microns; Will be located on the shaft, dial gauge meter resistance in the back seat hole surface, the axis of rotation to measure IKO bearing hole of the coaxial degree before and after. 4, will be free end IKO bearing selectively on May offset the position of the deviation, installed to the IKO bearing support position, after offset each other as much as possible of roundness error and axiality deviation.