How to use empirical methods to check rolling nsk bearing
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234407BM 234706BM 234406BM 517/2860V/YA 5610/2500 517/1720X1V 527/1181M 510/1180M 517/930 510/670 590/560 510/500 52780 59080 517/368M 51760U 517/238 6207-2ZN 6206-2ZN 6205-2ZN 6204-2ZN 6203-RZ 6203-2ZN 6202N 6202-2ZN 6201-2ZN 6200ZZ 6200-2ZN 62/32-ZN 62/32-Z 62/32N 62/32-2Z 62/32-2RZ 62/32-2RS 62/28-2RZ 62/22-2RZ 61996 61992 61988 61984
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Some machine hand experience, lack of identification of rolling bearing see scroll imports bearing no obvious damage will continue to use, so that later cause serious failure. Some people just remove the rolling bearing, without checking to be replaced, and sometimes you can continue to use the bearings replaced. The technical condition of rolling bearings should be a dedicated tester to check some data available dial indicator measurement. But for the general machine hand, do not have these conditions, the available empirical methods cursory check.
(1) observation. Rolling with the naked eye observation, inside and outside the raceway should be no peeling off traces of serious wear and tear, and was a circular grooves; all the rolling surface should be free of spots, cracks and peeling phenomenon; cage should not be loose, no damage, not worn But with the rolling body clearance.
(2) feel method. Inside and outside of the normal fag bearing seat and rolling element gap of 0.005 to 0.010 mm. Has used a phase of the rolling bearing, the axial shake with your fingers to pinch the inner race should be no obvious the Kuang dynamic sound.
(3) rotation method. Bearing seat with one hand gripping the other hand, rotating the outer race bearings should be able to rotate flexibly, but should not feel the radial shaking.
Inspection, should be the three kinds of empirical methods combine to make the right judgments, in order to facilitate the technical state of rolling skf bearing. Tapered roller bearings, but also to observe the rolling element is located in the middle of the outer ring, if forward and should not be more than 1.5 mm.
(1) observation. Rolling with the naked eye observation, inside and outside the raceway should be no peeling off traces of serious wear and tear, and was a circular grooves; all the rolling surface should be free of spots, cracks and peeling phenomenon; cage should not be loose, no damage, not worn But with the rolling body clearance.
(2) feel method. Inside and outside of the normal fag bearing seat and rolling element gap of 0.005 to 0.010 mm. Has used a phase of the rolling bearing, the axial shake with your fingers to pinch the inner race should be no obvious the Kuang dynamic sound.
(3) rotation method. Bearing seat with one hand gripping the other hand, rotating the outer race bearings should be able to rotate flexibly, but should not feel the radial shaking.
Inspection, should be the three kinds of empirical methods combine to make the right judgments, in order to facilitate the technical state of rolling skf bearing. Tapered roller bearings, but also to observe the rolling element is located in the middle of the outer ring, if forward and should not be more than 1.5 mm.
