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Four methods for determining NSK rolling bearings
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(2) After the NSK tapered roller bearing is judged to be used, it should be checked whether the rolling body and the inner ring raceway can fall off; whether the frame can be too loose; whether the inner ring can be intact before and after; the outer ring raceway can have cracks. After the inner ring and roller assembly are installed in the outer ring; the roller should fall into the center of the raceway; the forward displacement does not exceed 1. 5mm. One of them is unqualified; that is, it cannot be used.
(3) Determination of NSK spherical roller bearings and short cylindrical roller bearings The outer ring of these bearings is separable. Under normal conditions; the inner and outer ring raceways and rollers should be free of breaks, pitting and deep wear marks. , adhere to the frame should be no deformation and can gather the roller on the inner ring, the cooperation gap between the inner and outer ring raceway and the roller should not exceed 0. 06mm.
(4) When NSK thrust ball bearings are judged to be in normal condition; the two raceways should have no falling damage and severe wear; the balls should be free from breakage and pitting, and the frame should be free of deformation; not touching the two raceway washers; and the balls are firmly gathered Together.
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