In the ordinary circumstances, tightly coordinates the full installment unidirectional bearing to have to depend on the tight shoulder.Inspection procedure:
(1) light law.Soon the electric lamp aims at the KOYO bearing and the shoulder place, looks at the leakage of light estimate of the situation.If is not exposed, the explanation installment is correct; If along shoulder around even leakage of light, explained the bearing has not depended on with the shoulder tightly, should cause it to the bearing infliction pressure to depend on tightly; If has a part of leakage of light, explains the bearing installment incline, available hand hammer, bar copper or sleeve rap bearing inner loop, slowly peaceful positive.
(2) feeler gauge inspection method.Feeler gauge thickness should by 0.03mm start.When examination, tries in the unidirectional bearing inner loop end surface and in the shoulder entire circumference to insert several, if discovered has the gap also very even, explained the KOYO bearing has not installed the arriving, should cause it to the bearing inner loop compression to depend on the tight shoulder; If the enlarge pressure also depends on not tightly, explained the journal fillet spot the fillet too is big, has caught the bearing, should repair and maintain the journal fillet, causes it to change small; If the discovery bearing inner loop end surface and the bearing shoulder individual spot feeler gauge can pass, explained this time does not have to disassemble, repairs and maintains, installs.

If the KOYO bearing has installed by the full coordination in the bearing seat hole, when unidirectional bearing addendum circle by shell Kong Dangjian fixed, its addendum circle end surface and shell Kong Dangjian end surface whether depends on tightly, installs whether correctly, also available feeler gauge examination.

After bearing installment examination

When installs the KOYO bearing, should examine the blow-out patch and the axle verticality.The method is dial gauge fixed Yu Xiangke the end surface, makes the table to touch the top of the head to rotate the bearing above the unidirectional bearing blow-out patch roller conveyer, observes the dial gauge indicator, if the indicator beats, explained the blow-out patch and the axle are not vertical.When the box shell hole compares the depth, also available lengthen dial gauge examination.

When unidirectional bearing installment correct, its race can adapt the rolling body trundle automatically about, guarantees the rolling body to be located the circle roller conveyer.If installed counter-, not only the bearing work was not normal, also various fitting surfaces could encounter the serious attrition.Because blow-out patch and race and difference not very obvious, in the assembly should the especially careful, be sure not to make a mistake.In addition, between the KOYO bearing race and the bearing seat hole also should leave leeway 0.2—0。
 
The 5mm gap, with compensates the error which the components processing, the installment creates not precisely, when revolves the unidirectional bearing ring off-centering, this gap may guarantee its automatic control, avoids bumping touches the friction, causes its normal work.Otherwise, will cause the KOYO bearing fierce damage.




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