>> P.67
ChannelinggreasebehaviorpatternBallGreaseBallrotationdirectionToomuchgreaselostfromlubricationpartsLessinfluencefromviscousresistancewhenthefollowingballsremovegrease,loweringtorqueChurninggreasebehaviorpatternBallGreaseStoppedBallrotationdirectionGreaseisretainedinlubricationpartsandreturnsthereGreaseremainsdifficulttoremoveevenwhenthefollowingballspassbyFig.14-1(4)Causesandcountermeasuresofmajortorque-relatedissuesIssueCauseCountermeasureRatedrotationisnotachievedStartupcurrentvalueistoohighToomuchgreaseUseofchurninggreaseFitistootightLoadamountistoohighReducethegreaseamountUsechannelinggreaseReexaminethefitReexaminetheloadamountRotationirregularityToomuchgreaseUseofgrease(alsoconsiderrotationspeed,temperature,requiredlife,etc.)ReducethegreaseamountUsechannelinggrease(alsoconsiderrotationspeed,temperature,requiredlife,etc.)GreaseamountandrotatingtorqueToomuchgreaseReducethegreaseamount(alsoconsiderrequiredlife,etc.)TemperatureandrotatingtorqueGreasebaseoilviscosityincreasesInsertgreasewithviscosity(alsoconsiderrequiredlife,etc.)lowbaseoilAsthecountermeasureslistedherewithregardtotorque-relatedphenomenaarecloselyinvolvedwithotheraspectsofrequiredperformance,consultMinebeaMitsumifordetails.67
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