GBT 12764-2019 滾動(dòng)軸承 無(wú)內(nèi)圈沖壓外圈滾針軸承外形尺寸、產(chǎn)品幾何技術(shù)規(guī)范(GPS)和公差值

滾動(dòng)軸承無(wú)內(nèi)圈沖壓外圈滾針軸承公差值國(guó)家市場(chǎng)監(jiān)督管理總局I——GB/T6930—2002滾動(dòng)軸承詞匯(ISO5593:1997,IDT)滾動(dòng)軸承參數(shù)符號(hào)(ISO15241:2012,IDT)——GB/T16892—1997形狀和位置公差非剛性零件注法(eqvISO10579:1993)Ⅱ本標(biāo)準(zhǔn)是產(chǎn)品幾何技術(shù)規(guī)范(GPS)體系(見(jiàn)ISO14638[9]矩陣模型)中規(guī)定的機(jī)械零件幾何要素1ISO1132-1滾動(dòng)軸承公差第1部分：術(shù)語(yǔ)和定義(Rollingbearings—Tolerances—Part1:ISO5593滾動(dòng)軸承詞匯(Rollingbearings—Vocabulary)tions(GPS)—Dimensioningandtolerancing—Non-rigidparts]tspecifications(GPS)—DimenISO15241滾動(dòng)軸承參數(shù)符號(hào)(Rollingbearings—Symbolsforphysicalquantities)tion(GPS)—Geometricaltolerancingofmoveableassemblies]2公稱尺寸和規(guī)范修飾符“說(shuō)明C沖壓外圈寬度最小外接尺寸與公稱尺寸的(最小外接尺寸)(最小外接尺寸)Dr公稱倒角*尺寸固定零件和活動(dòng)零件的約束條件和規(guī)范修飾符按ISO/TS17863的規(guī)定，見(jiàn)圖1.3圖1無(wú)內(nèi)圈沖壓外圈滾針軸承結(jié)構(gòu)示例45外形尺寸2D按表3的規(guī)定。DC45678989777777778888889699911111111*C,和C?分別為Cj,和C?,的上限值。5DCr尺寸系列89—————C,和C?分別為C,.和C?,的上限值。倒角尺寸r為r,的下限值。6.1總則6約束直徑UL45689789未規(guī)定沖壓外圈外徑D的偏差。軸承制造商應(yīng)保證滿足功能要求的配如果實(shí)際約束直徑偏離其規(guī)定值，應(yīng)修正ta,以補(bǔ)償此偏差。約束直徑DUL89十0.0317表5(續(xù))單位為毫米約束直徑“UL未規(guī)定沖壓外圈外徑D的偏差，軸承制造商應(yīng)保證滿足功能要求的配“如果實(shí)際約束直徑偏離其規(guī)定值，應(yīng)修正tau,以補(bǔ)償此偏差，CUL0GPS標(biāo)注見(jiàn)圖1b)。8GB/T12764—2019/ISO3245:2015(資料性附錄)軸滾道淬硬并精磨。表面硬度最低670HV(58HRC)。滾道的最小淬硬層深度為0.3mm~A.3符號(hào)d?:軸公稱直徑公稱直徑相關(guān)的標(biāo)準(zhǔn)公差等級(jí)(IT3和IT5)數(shù)值及公差等級(jí)(h6或N9 圖A.1軸和軸承座結(jié)構(gòu)linearsizes—Part1:Basisoftolerances,deviati[3]ISO1101Geometricancesofform,orientation,location[4]ISO1132-2Rollingbearings—Tolerances—Part2[5]ISO2639:2002Steels—Determinationandve[6]ISO8015Geometricalproductspecificati253-1Geometricalproductspecififworkpiecesandmeasuringequipment—Part1253-2Geometricalproductspecififworkpiecesandmeasuringequipment—Pa