>> P.5
Thekeytoperformanceimprovementforrollingballbearingsisthoroughgoingenhancementoftheaccuracyofeverypart,includingouterrings,innerrings,balls,retainersandsoon.MinebeaMitsumimanufactureseverycomponentwithinitsGroup,showingaccuracyimprovementinourproductsthroughoutoverseventyyearsofrollingballbearingmanufacturingandproductmachining.Thedevelopmentofourin-housemachinetoolsandmaintenancetechnologypursuesaccuracyinallourproducts.Ultra-precisionmachiningtechnologyrealizessmaller,higher-efficiencyproductsUltra-precisionOuterdiameter1.5mmRealizingthesmallestcommerciallyavailablesteelballbearingsintheworld.Aswellascontributingtofurtherproductminiaturization,theseproductsserveasevidenceofMinebeaMitsumi'smachiningtechnology.1.5mmHighefficiencyWorld'slongestrotationrecordOurproducts'lowerpowerconsumptiontechnologyhasbeenprovenwiththecreationofahigh-performancefidgetspinner.Worldrotationrecordforafidgetspinnerrotatingononefinger:24minutes46.34seconds.