滚针轴承知识101(中)复习课程.ppt

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1、滚针轴承知识101(中)BearingChoices轴承的选用Whatbearingchoicesdocustomershave?客户如何选用轴承?BallBearing球轴承Bore-1.00”OD-2.00”Width-.375”Capacity-2500lbfS10KBore-1.00”OD-1.50”Width-.750”Capacity-3870lbfHJ-162412MachineRaceBearing实体圈滚动轴承Bore-1.00”OD-1.25”Width-.750”Capacity-2710lbfJ-1612

2、DrawnCupBearing冲压圈轴承Bore-1.00”OD-1.25”Width-.750”Capacity-7790lbfLooseRollerComplement滚针组件DrawnCupFeatures冲压圈轴承持性Advantages优点Thincrosssection薄壁Maximumload-carryingcapability最大的承载能力Minimumspacerequired最小的空间需要Installationincorporatingapressfit过盈压配安装Fullcomplementdesign

3、formaximumcapacity满滚针设计提供了最大承载能力Cageddesignforhigherspeedsandluberetention带保持持设计提供了高速和润滑持久Morecosteffectivethananygroundproducts比磨加工产品成本低SizeRange尺寸范围Inch英制:孔1/8in.-5-1/2in.boreMetric公制:孔3mm-60mmboreApplications应用-HydraulicGearpumps液压齿轮泵(B-88,B-86)-AutomaticBrakingSy

4、stems自动制动（刹车）系统(DBA-66406)-Automotiveairconditioningcompressors汽车空调压缩机(DB-66391)-PowerTools动力工具(B-bearings)-Automatictransmissions汽车变速箱(FJ-4516)-Starters&Alternators起动器及交流发电机(JTT-XXX,HK-0608E)-Steeringcolumnuniversaljoints转向柱万向节(DD-64056,DB-59500-2)-PushrodengineRock

5、erarmsPushrod发动机摇臂(CDCA-65291)-18Wheelermileagecounter18Wheeler里程计数器(JP-23F)-WheelBearings轮用轴承(DB-67309)Transmissions变速箱AutomaticPumpShaftSupport汽车泵轴支承ManualFWD手动前轮驱动ABSBearingsABS轴承Axialdisplacementofbearingiscreatedbyeccentricallygroundshaftofelectricmotor电机马达转动轴的偏

6、心部分造成轴承的径向位移PumppistonsareincontactwithODofcup汽缸活塞与轴承外径相连接RockerArms摇臂WhatKeyFeaturesMakeaBearingAbletoSustainLoading?使轴承承受载荷的关键特性?Abilitytosupportloadisbasedon承受载荷的能力基于:ContactSurfacearea/Stress接触表面积/应力BoreProfile孔轮廓RollerProfile滚子轮廓Roller/BoreRoundness孔/滚子圆度Hardnes

7、sofLoadBearingComponents轴承零件承载的硬度Shaft轴Rollers滚子Cup冲压圈Housing座HousingPressFit&Sizing/RoundingofBearing壳体压配合及轴承的尺寸/圆度Stress&SurfaceArea表面及表面应力Stress应力=Force压力Area面积=BearingLoad轴承载荷BearingSurfaceArea轴承承载面积TheLowertheBearingSurfaceareatheHigherThestress.轴承承载表面积越小表面应力越高。

8、TheHighertheStress,theLowertheLife应力越高，寿命越低。BoreProfileandRollerProfileareKeyProductCharacteristicsWhichHaveaDirectEffectonBearingS