JB-T 7919.2-1999 滚动轴承 附件 紧定套

ICS21.100.20J11JB/T7919.2－1999neqISO2982–1∶1995滚动轴承附件紧定套Rollingbearings—Accessories—Adaptersleeves1999-06-28发布2000-01-01实施国家机械工业局发布()I前言1范围····················································································································································································································12引用标准·········································································································································································································13术语····················································································································································································································14符号····················································································································································································································25代号方法·········································································································································································································46标记····················································································································································································································57尺寸····················································································································································································································58技术要求·······································································································································································································199测量方法·······································································································································································································2010标志···············································································································································································································2011检验规则·····································································································································································································2112包装···············································································································································································································21附录A（标准的附录）测量方法······················································································································································22附录B（标准的附录）紧定套与其组成零件对应关系表·································································································25JB/T7919.2－1999目次()II前言本标准非等效采用ISO2982–1∶1995《滚动轴承附件锥形衬套》。标准中补充了国际标准中没有的技术条件。本标准是对JB/T7919.2—95《滚动轴承附件紧定套基本尺寸》、JB/T7919.3—95《滚动轴承附件紧定衬套基本尺寸》的修订，并部分代替JB/T7919.7—95《滚动轴承附件锥形衬套、锁紧螺母和锁紧垫圈技术条件》。本标准与JB/T7919.2—95、JB/T7919.3—95相比，主要作了以下修改：——将JB/T7919.7—95的相关内容并入本标准中；——扩大了紧定套H30、H31、H32系列及紧定衬套A30、A31、A32的尺寸范围，增加了H39系列紧定套及A39系列紧定衬套；——补充了大尺寸段的公差。本标准自实施之日起代替JB/T7919.2—95、JB/T7919.3—95、JB/T7919.7—95（部分）。本标准的附录A和附录B都是标准的附录。本标准由全国滚动轴承标准化技术委员会提出并归口。本标准起草单位：洛阳轴承研究所。本标准主要起草人：陈原、郭宝霞、李飞雪。JB/T7919.2－199911范围本标准规定了由紧定衬套、锁紧螺母和锁紧垫圈或锁紧卡组成的紧定套（简称紧定套）的结构和尺寸。本标准还规定了用于紧定套的紧定衬套的结构、尺寸以及公差等技术要求。本标准适用于尺寸系列符合GB/T273.3的滚动轴承用紧定套和紧定衬套的设计、生产、检验和用户验收。2引用标准下列标准所包含的条文，通过在本标准中引用而构成为本标准的条文。本标准出版时，所示版本均为有效。所有标准都会被修订，使用本标准的各方应探讨使用下列标准昀新版本的可能性。GB/T192—1981普通螺纹基本牙型GB/T196—1981普通螺纹基本尺寸（直径1~600mm）GB/T272—1993滚动轴承代号方法GB/T273.3—1988滚动轴承向心轴承外形尺寸总方案GB/T275—1993滚动轴承与轴和外壳的配合GB/T307.2—1995滚动轴承测量和检验的原则及方法GB/T699—1988优质碳素结构钢技术条件GB/T1804—1992一般公差线性尺寸的未注公差GB/T2516—1981普通螺纹偏差表（直径1~355mm）GB/T5796.1—1986梯形螺纹牙型GB/T5796.3—1986梯形螺纹基本尺寸GB/T5796.4—1986梯形螺纹公差GB/T6930—1986滚动轴承词汇GB/T8597—1988滚动轴承包装JB/T3574—1997滚动轴承产品标志JB/T8921—1999滚动轴承及其商品零件检验规则3术语本标准采用的术语符合GB/T6930的规定。国家机械工业局1999-06-28批准中华人民共和国机械行业标准滚动轴承附件紧定套Rollingbearings—Accessories—AdaptersleevesJB/T7919.2－1999neqISO2982–1∶1995代替JB/T7919.2—95JB/T7919.3—95部分代替JB/T7919.7—952000-01-01实施JB/T7919.2－199924符号4.1紧定套符号（见图1）d：轴承公称内径d1：紧定套公称内径d2：紧定套锁紧螺母外径B1：紧定套公称宽度B2：锁紧螺母与轴承端面间的距离B3：锁紧螺钉与轴承端面间的距离1—轴承；2—锁紧垫圈；1—轴承；2—锁紧螺母；3—锁紧螺钉；3—锁紧螺母；4—紧定衬套4—锁紧卡；5—紧定衬套图1紧定套4.2紧定衬套符号（见图2）d：紧定衬套适用轴承公称内径d1：紧定衬套公称内径G：螺纹B1：紧定衬套公称宽度D1：紧定衬套大端外径（计算值）d3：紧定衬套圆锥小端直径D2：紧定衬套越程槽直径（参考值）D0：紧定衬套圆锥表面的中部直径JB/T7919.2－19993a：紧定衬套螺纹长度与越程槽宽度之和b：紧定衬套锁紧槽宽度f：紧定衬套窄槽宽度g：窄槽紧定衬套锁紧槽长度r：紧定衬套内孔倒角尺寸rsmin：r的单向昀小倒角尺寸Δd1mp：紧定衬套单一平面平均内径偏差ΔB1s：紧定衬套宽度偏差Δas：a的长度偏差Δbs：紧定衬套锁紧槽宽度偏差Δfs：紧定衬套窄切槽宽度偏差ΔD1s：紧定衬套圆锥大端直径偏差ΔD1mp–Δd3mp：紧定衬套圆锥表面的锥角偏差KDo：紧定衬套圆锥表面对内孔的径向跳动VDop：紧定衬套单一径向平面内D0的变动量Vd1s：紧定衬套内径变动量图2紧定衬套JB/T7919.2－199945代号方法5.1紧定套代号方法紧定套代号由类型代号、尺寸系列代号和适用的轴承公称内径代号组成，并按此顺序排列。5.1.1类型代号用字母H表示。5.1.2尺寸系列代号按GB/T272中轴承尺寸系列代号的规定，分为02，03，30，31，23，32及39尺寸系列。5.1.3内径代号按GB/T272中轴承内径