戒备|青岛Chuntai

ringgear 1.Material:C45/SAE1045 2.Progress:forging---normalizing---expand---turning---gearcutting---chamfering---cleaning-carryandinspection---quenching---tempering---rustproof---completed. 3.Features: 1)Rawmaterial:C45andanyrawmaterialyourequested 2)Producedaccordingtoyourdrawingorsample. 3)Quotation:Ifyoucouldtellustheinnerandoutsidediameter,heightandtheteethnumber, material,port,thenwecouldgiveyouthepriceforyourreference. 4)Series:FAW,DIESEL,IVECO,STEYR,KAMAZ,TATRA,NISSAN,ISUZU,MAZDA,LADA,AUDI,FORDandsoon... 5)OEM:adrawingorsample 4.Astarterringgear,sometimescalledastarterringorringgear,isamediumcarbonsteelringwithteeththatisfittedontheperipheryofaflexplateorflywheelofaninternalcombustionengine,mostlyforautomotiveapplications. Theteethofthestarterringaredrivenbythesmallergear(thepinion)ofthestartermotor.Theprimaryfunctionofthestarterringistotransfertorquefromthestartermotorpiniontotheflywheelorflexplatetorotatetheenginetobeginthecycle. Thestarterringgearismostcommonlymadebyformingalengthofsquareorrectangularsteelbarintoacircleandweldingtheendstogether.Therethenfollowvariousheat-treatmentlikenormalisingandtemperingandmachiningoperations,includingthemachiningoftheteethandfinallyaheat-treatmentoperation.Theteethofthestarterringneedtobehardenedinordertoincreasetheirstrengthandresistwear.Thenormalhardnessatpitchcirclediameteris45-55HRC.Thehardnessattherootoftheteethisabout40HRCandat2mmbelowrootthehardnessis35Hrcmax.Thebodyoftheringisgenerallyleftuntreated. Engineswithmanualtransmissionusuallyhaveaheavyflywheel,typically5to10kgofcastiron,withthestarterringgearshrunkontotheoutside.Thisisdonebyheatingtheringtoaround200°Ctoexpandtheringwhichisthenplacedontotheflywheel,holdtheringgearwithhydraulicpressureof5kg/cm2for1minandallowedtocooltheringgear.Thestarterringistherebyfirmlyattachedtotheflywheel.