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Under normal circumstances, the tight fit interference installed Rolling must abutting shaft shoulder. Inspection methods:
(1) lighting method. The lamp is about to aligning bearings and shaft shoulder, see light leakage judged. If the light does not leak, the installation is correct; uniform light leakage along the shaft shoulder around the shaft shoulder bearing not try to be, to cope with the pressure applied to the bearings so try to be; some light leakage, indicating that the tilt of the bearing installation, can be hand hammer, brass rod bearing inner ring or sleeve percussion, slowly Anzheng.
(2) feeler Inspection Act. The thickness of the feeler should be 0. 03mm. Inspection, the entire circumference of the end face of the bearing inner ring and the shaft shoulder trial interpolation several, such a gap is very uniform, the bearing is not installed in place, in response to the bearing inner ring is pressurized so that it abuts the shaft shoulder; if the increased pressure by tight, the description of the the journal fillet site of fillet too big bearing stuck journal fillet, should be trimmed to make it smaller; bearing inner ring if we find the individual parts of the face and bearing shoulder feeler gauge through, not must be dismantled to be trimmed, reinstall. If the bearing is installed in interference fit bearing bore, bearing outer ring shell holes gear shoulder fixed, whether its outer end face of the housing hole stop shoulder end abuts installed correctly, can also be used feeler inspection. After the installation of the thrust bearing inspection and installation of thrust bearings should test the verticality of the shaft washer and shaft centerline. The dial gauge fixed on the end face of the tank shell, and touch the top of the head of the table bearing shaft washer raceway upper rotating bearing, while observing dial gauge pointer, if the pointer deflection, shaft washer and shaft centerline is not perpendicular. Tank shell hole deeper, it can also be used to lengthen the dial gauge head test. Thrust bearing is installed correctly, the seat can automatically adapt to the rolling of the rolling body, and to ensure that the rolling body is located in the upper and lower raceway. If installed backwards, not only bearing is not normal, and the mating surface would be subjected to severe wear. Shaft ring and seat and the difference is not obvious, the assembly should be extra careful not to mistake. Seat thrust bearing and the bearing hole should be left 0. 2-0. 5mm gap to compensate for parts processing, installation the imprecision caused the error, when the bearing ring center offset operation , this gap ensures that the automatic adjustment, to avoid touching the friction to their normal operation. Otherwise, it will cause intense damage of the bearing.
