JB/T 6644-1993 滚动轴承 滚针和双向推力圆柱滚子组合轴承尺寸和公差

中华人民共和国机械行业标准滚动轴承滚针和双向推力圆柱滚子JRT664493组合轴承尺寸和公差1主题内容与适用范剧本标准规定了滚针和双阿推力圆柱滚子组合轴承(以下简称组合轴承)的尺寸和公差ZARN型…一滚针和双向推力圆柱滚子组合轴承(见图1)。ZARF型一一带法兰盘的滚针和双向推力圆柱滚子组合轴质(见图2)本标准适用于轴承制造|对轴的生产和检验以及用户对成品轴承的选型和验收2引用标准(迅B307.滚动缃承公差(B307.2滚动轴承公差的测量方法(4199滚动轴承公差定义IB;297滚动轴頂代号方法的补充规定H3!I1滚动轴承滚针组合轴承技术条件z}Jil011滚动轴承滚针和推力圆柱滚子组合轴承外形尺寸3符号除下列符号外,本标准所引用的符号,其定义规定在GB4199中。:组合轴承公称宽度;丛T:组合轴承实际宽度的偏差;Ⅰ);纠合轴承外圈公称外径;D1:组合轴承轴圈公称外径Dm:;轴圈单一平面均外径偏差;(∵外圈公称宽度;C1:外图台阶宽度;内圈公称內径;d1:轴圈公称内径;△d!mp:轴圈单一平面平均内径偏差;11:外阁端面至轴圈底面的轴向距离;12:轴圈公称厚度;r1:外图的公称倒角;-mn:n1的单向最小倒角尺寸r:轴圈的公称倒角;r…gm:r的单向最小倒角尺寸;机械电子工业部1993-05-12批准1994-01-01实施"T6644…931:浒扎甜螺孔的屮心圆直径;!:)孔径外|的宽度变动量;纠;轴承端酊刘滚道的跳动。了1ZARN型4尺寸组轴底的小按表1A的规定。表1列」、mm孔门)1:\R114R`!:}2.38,3:(,i∴尺、2320∷}{051∵↓:5ti60112.5|2511Z}只)78|11.5|503,JB/T6644→93表2轴代号径向油孔轴向沖孔螺孔P"[r: sr. itd,|数量d;数dn,数zRF160|156040261614357.5463.213.226.6610.30.617621762113127.114389483.2113.226.66170.30.67RF268268462916112:6533.213.2}26.6162910.3|0.6ZRF272575152l84?|1058∷.211}326.6;825]0.31(.6\R3803080503320185210633.2113.226.61230.30.6八RF5959:54:52|!s|60111732113.2}26.5t23514.30.6VRF.i1014010543520186511803.2113.2:298409.30.67R451055105602522.5701.5856198|450.30.6厶\RF5115604n22.5781.94662191250930.6表3重示刘寸4fh轴手代号油孔数沚7AKN2062GO10ZRN2.57272(10206212.5252.5.3O).作Z.R0838I)2(14ZARN358556673士353.50.3((6ZR、10901640LARN 110S1058253f↓7.53.5.3Z oIls3.530.30.6ZARN:51358253.5251)012.553.5.3RN尔126020253.5251517.50.3m.6ZARN t,1?51258253.525l10i17.5653.57.4R、71:07053.5115「17.5!701.3(.6Z.R75151510065!35217571RN0!8184|:1072,5135160ZARN 1102i(11|210113040190261Z\RN1:202401501030|2529307Ryi5270150270161063215B/T6644-93表4系尺寸,n轴承代号径向油孔轴向油孔螺孔DT7'|c:1Td.数蛏|d|数量|d数量ZARF20802080|60|38201852i2.53213.226.612}26ZRF25902590603820186212.5733.2113.2216.612250.3:0.6ZARF U3105301056641201868!14}853.3.22}912301.3!(ZARF35113511066411201817314883.21132!212350.3ZARE40154011575147.52522.578169616}2191240!C.7ARF151a04:1308251252.5s017.515629121:|.3.ZARF5”140501408512522.59517.5113161650G.3ZARF551455514582512522510017.5118616211|12|5:0.,ZARF6015601150825:25122.510517.5123!616「2!126(.0∠ARF65156515582152522.511017.51286162112,:.3.6ARF70160701608252522.51t517.513361621121010.3157RF758575185100623271352115561621ZARF9219021011069.引353215022.51806162113.5129010.注:1当采用塑料保持架时,上述代号加后置代号TN,塑料允许工作温度与制造厂协商油孔数场可由制造!与用户协商确定。5公差值5.1内附内圈的公差符合表5的规定表5内圈d mVdV