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            高速精密角接觸球軸承,主要用于載荷較輕的高速旋轉場合,要求軸承高精度、高轉速、低溫升低振動和一定的使用壽命。常作高速電主軸的支承件成對安裝使用,是內表面磨床高速電主軸的關鍵配套件。角接觸球軸承分單列角接觸球軸承和雙列角接觸球軸承。角接觸球軸承主要技術指標:1.軸承精度指標:超過GB/307.1-94P4級精度2.高速性能指標:dmN值1.3~1.8x106/min3.使用壽命平均:大于1500h

            高速精密角接觸球軸承,有背對背、面對面和串聯排列三種。背對背(兩軸承的寬端面相對)安裝時,軸承的接觸角線沿回轉軸線方向擴散,可增加其徑向和軸向的支承角度剛性,抗變形能力大;面對面(兩軸承的窄端面相對)安裝時,軸承的接觸角線朝回轉軸線方向收斂,其支承角度剛性較小。由于軸承的內圈伸出外圈,當兩軸承的外圈壓緊到一起時,外圈的原始間隙消除,可以增加軸承的預加載荷;串聯排列(兩軸承的寬端面在一個方向)安裝時,軸承的接觸角線同向且平行,可使兩軸承分擔同一方向的工作載荷。但使用這種安裝形式時,為了保證安裝的軸向穩定性,兩對串聯排列的軸承必須在軸的兩端對置安裝。


          型號原代號

          外形尺寸(mm)

          基本負荷(KN)極限轉速(r/min)重量(KG)
          dDBRsminR1smina脂潤滑油潤滑
          71930C1036930150210282138113131260034002.8
          71930AC1046930150210282156107126260034002.8
          7030C36130150225352.1143155171240032004.5
          7030AC46130150225352.1162147162240032004.5
          7030B66130150225352.11.196107119240032004.5
          7230AC462301502704531.1711902702000260012
          B7230AC1462301502704531.1711902702000260012
          7230B662301502704531.11111762022000260012
          7330AC463301503206541.5872804301800240026
          7330B663301503206541.51312453801800240026
          71932C1036932160220282140117144240032002.9
          71932AC1046932160220282158112138240032002.9
          7032C36132160240382.1146176195220030006
          7032AC46132160240382.1166164184220030006
          B7032AC146132160240382.1166164184220030006
          7032B66132160240382.11.1103129150220030006
          7232C362321602904831.1542003001800240014
          7232AC462321602904831.1761902801800240014
          7232B662321602901831.11181802151800240014
          7332B663321603406841.51392604001700220032
          71934C1036934170230282141120150220030003
          71934AC1046934170230282161112145220030003
          7034C36134170260422.11.150191221220028008.5
          7034AC46134170260422.11.171180210220028008.5
          7034B66134170260422.11.1111155185220028008.5
          7234C362341703105241.5582503001800240018.2
          7234AC462341703105241.5822352901800240018.2
          B7234AC1462341703105241.5822352901800240018.2
          7234B662341703105241.51272002451800240018.2
          7334B663341703607241.51473254101500200036
          71936C103693618025033214515219122028004.5
          71936AC1046936180250332167145180220028004.5
          7036C36136180280462.11.1542182612000260011
          7036AC46136180280462.11.1772072762000260011
          7036B66136180280462.11.51191762162000260011
          7236C362361803205241.5592503201700220019
          7236AC462361803205241.5842403001700220019
          7236B662361803205241.51312262881700220019
          7336B6633618038075421563344411500200044
          71938C1036938190260332147155200220028004.5
          71938AC1046938190260332169150190220028004.5
          7038C36138190290462.11.1552252702000260011
          7038AC46138190290462.11.1792152602000260011
          7038B66138190290462.11.11241802302000260011
          7238B662381903405541.51392503201500200022
          7338B6633819040078521642705051400190049
          71940C1036940200280382.1151190240200026007.5
          71940AC1046940200280382.1175180225200026007.5
          7040C36140200310512.11.1602703551800240014.5
          7040AC46140200310512.11.1852553301800240014.5
          7240C362402003605841.5662803701500200027
          7240AC462402003605841.5942703501500200027
          7240B662402003605841.51462403201500200027
          7340B6634020042080521704055901400180053
          71944C1036944220300682147200270180024008
          71944AC1046944220300682169190260180024008
          7044C361442203405631.1663054101700220019.56
          7044AC461442203405631.1942904001700220019.5
          7044B661442203405631.11452303151700220019.5
          7244AC462442204006541.51053204501400180037.5
          7244B662442204006541.51642904201400180037.5
          7344B6634422046088521874456501200160070
          71948AC1046948240320382.11.184195270170022009
          7048C361482403605631.1683154451500200021
          7048AC461482403605631.1983004201500200021
          7048B661482403605631.11542353401500200021
          7248B662482404407241.51803304901200160049
          7348B6634824050095522034306051100140088
          71952AC1046952260360462.11.1952003801400190015
          7252B6625226048080521954607101100140066
          71956AC1046956280380462.11.11192303451400180015.8
          7056C361562804206541.5743555502300170030
          7056B661562804206541.51792904501300170030
          7256B6625628050080522044707701100140070
          7060B661603004607441.51963405701100150043
          7260B662603005408552.12195008401000130087
          7064B661643204807441.52053556101100140045
          7264B66264320580925223656510109001200110
          71968B10669683404605691.11962704801100140027
          7068B6616834052082522234057351000230062
          7268B66268340620926324863512008501100125
          71872AC-360440382.11.11122153851100140012
          71972B10669723604805631.12042755001100140029
          7072C3617236054082521014509501000130063
          7072B6617236054082522305207651000130063
          7272B66272360650495632615851125700950145
          71876AC-380480462.11.11232654501000130018
          71976AC10469763805206541.51373706651000130043
          71976B10669763805206541.52213206301000130043
          72976AC20469763805208241.51464107301000130050
          7076B661763805608252238425795900120066
          7080B661804006009052255475920850110085
          7280B66280400720103632876601350600800190
          71984B10669844205606541.5238330605850110045
          7084B661844206209052263490955850110089
          7088B66188440650946327652010657501000100
          71992AC10469924606207441.5163460940750100058
          7092B66192460680100632895601165700950120
          7096B66196480700100632985651210670900125
          70/500B661/500500720100633065751260670900130
          718/530AC-5306505631.116637084067090040
          719/530AC10469/5305307108252186560121063085092
          70/530B661/530530780112633326701530600800180
          718/600AC-6007306031.1185425104060080047
          719/600AC10469/60060080090522086451560560750125
          718/670AC-6708206941.5208500116050067080
          718/710AC-7108707441.5221545147048063094
          719/710AC10469/710710950106632477701980450600195
          718/750AC-75092078522345851620450600100




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