轴承游隙实用规范标准

1、轴承游隙所谓轴承游隙，即指轴承在未安装于轴或轴承箱时，将其内圈或外圈的一方固定，然后便未被固定的一方做径向或轴向移动时的移动量。根据移动方向，可分为径向游隙和轴向游隙。运转时的游隙（称做工作游隙）的大小对轴承的滚动疲劳寿命、温升、噪声、振动等性能有影响。测量轴承的游隙时，为得到稳定的测量值，一般对轴承施加规定的测量负荷。因此，所得到的测量值比真正的游隙（称做理论游隙）大，即增加了测量负荷产生的弹性变形量。但对于滚子轴承来说，由于该弹性变形量较小，可以忽略不计。安装前轴承的内部游隙一般用理论游隙表示。游隙的选择从理论游隙减去轴承安装在轴上或外壳内时因过盈配合产生的套圈的膨胀量或收缩后的游隙称做“

2、安装游隙”。在安装游隙上加减因轴承内部温差产生的尺寸变动量后的游隙称做“有效游隙”。轴承安装有机械上承受一定的负荷放置时的游隙，即有效游隙加上轴承负荷产生的弹性变形量后的以便称做“工作游隙”。如图1所示，当工作游隙为微负值时，轴承的疲劳寿命最长但随着负游隙的增大疲劳寿命同显著下降。因此，选择轴承的游隙时，一般使工作游隙为零或略为正为宜。图1工作游隙与疲劳寿命的关系另外，需提高轴承的刚性或需降低噪声时，工作游隙要进一步取负值，而在轴承温升剧烈时，工作游隙则要进一步取正值等等，还必须根据使用条件做具体分析。81。=#000000表1深沟球轴承（留柱孔）的径向游隙单位um轴承公称内径duno游瞅C2

3、标准C3C4C5超过到最小最大最小最大最小最大最小最大最小最大2.56072138236013S2311292037100721811251S332545IS1009320132820362S4824120132S2341305330IS110一02015332S4610614094111一231S36305115735012823133S61559065301116302551167165105SO1363058538175120101091641366661979014012050215S1841SI71114105160MO2531691811130120ISO1606521510615

4、31029111713520010809IS12716311710716315023020098575110125195175265225100220159585160145225205300250120223IS105901701552452253402S02115100190175270245370315110323IS12511021019530027541035516032520115130240225310315460ISO30252003525225403025045352S05540315604535570100轴承公称内径dimn游瞅C2标准(CX)：3C1C5超过到最小最大最

5、小最大最小最大最小最大最小最大19一2.56C8一1510201525213361096171225193327121011310619132621353048141812821152823373250IS24q1110231730253931522430一16112419352946105830101813292310345316664050V1911312544375750715065621162630504569628865807211840356054S376108801002799481270649689121100120831255650S375114105115120no9383

6、0686010090135125175no160101011358070120110161150210表2调心球轴承的径向游隙圆柱孔轴承单位um15表2调心球轴承的径向游隙2）削锥孔轴承单位um轴承公称内径dmm游隙C2标准（00C3C4C5超过到最小最大最小最大最小最大最小最大最小最大2.56610101114181824717132620332812372430920152823393350113010122419352946105952554050112799393352156558625065183227471161568073658023393557507569989172SO100

7、120140100120no16029351015-17566874125060656S81981106275901009010S13015081100120no1161391651911091301551807999123144170205240表5四列圆柱滚子轴承的径向游隙（圆柱孔）单位um轴承公称内径dmm2组0组3组4组5组超过到最小最大最小最大最小最大最小最大最小最大SO100155050S5751101051101551901001201555509085125125165ISO220120140156060105100115115190200245no16020707012011

8、5165165215225275160180257575125120170170220250300ISO20035909014511019519525027533020022515105105165160220220280305365225250151101101751702352353003303952502S05512512519519026026033037044028031555130130205200275275350110485100100190190280280370370160510600150110210210310310110410510565665500110220220

9、330330110HO550625735560120240210360360ISO480600一6301102602603S03S0500500620一710115285285425425565565705一800150310310470470630630790一900180350350520520690690860一1000200390390580580770770960一11202201304306106108508501060一12502301704707107109509501190一1100270530530790790105010501310一5353554001505005606

10、30710SOO900100011201250表3阴柱滚子轴承的径向游隙轴承公称内径dmm游隙C2标准(CN)C3C1C5超过到最小最大最小最大最小最大最小最大最小最大100252045356050751024025204535605075659024300252045356050757095304053025504570608580105405053530605080701009512550651010107060908011011011065801015107565100901251301658010015505085751101051101551901001201555509085125

11、1251651802201201401560601051001151151902021511016020707012011516516521522527516018025757512512017017022025030018020035909014511019519525027533020022515105105165160220220280305365225250151101101751702352353003003952502S0551251251951902602603303754402803155513013020520027527535011048531535565115115225

12、2253053053851555353554001001901901802803703701605106001)削柱孔轴承单位um轴承公称内径dmm游隙C2标准(CN)C3CIC5超过到最小最大最小最大最小最大最小最大最小最大1118102020353515156060751824102020353545156060752430152525401055一75759530401530304545606080801001050203535555575_10010012550652010106565909012012015065803050508080110110115115ISO801003560

13、60100100135135ISOISO2251001201075751201201601602102102601201405095951451451901902102103001101606011011017017022022028028035016018065120120180ISO210240310310390ISO200701301302002002602603103104302002258014011022022029029038038047022525090150150240240320320120120520250280100170170260260350350160160570

14、2803151101901902802S0370370500500630315355120200200310310410110550550690355400130220220310310450150600600750100450140240210370370500500660660820单位um表4表4调心滚子轴承的径向游隙1)圆柱孔轴承150500110260260二。11055055072072090050056015028028044011060060078078010005606301703103104804806506508508501100630710190350350530530

15、7007009209201190710802103903905S0580770770101010101300800900230130430650650S608601120112014409001000260180480710710930930122012201570轴承公称内径dmm游瞅C2标准(CN)C3C1C5超过到最小最大最小最大最小最大最小最大最小最大18241525253535154565657524302030304040557575953040253535505065658585105405030151560608080100100130506510555575759595120

16、1201606580507070959512012015015020080100558080110110110110ISOISO30100120651001001351351701702202202801201408012012016016020020026026033011016090130130180ISO2302303003003S0160180100110110200200260260310310430ISO200110160160220220290290370370470200225120180180250250320320110110520225250110200200270270

17、3503501501505702502801502202203003003903901901906202803151702402103303301304305405406S03153551902702703603601701705905907403554002103003004001005205206506508201004502303303304404405705707207209101505002603703704904906306307907901000单位um表表4调心滚子轴承的径向游隙2)留锥孔轴承5005602904101105105106S06S08708701100560630

18、320160460600600760760980980123063071035051051067067085085010901090136071080039057057075075096096012201220150080090011061061084084010701070137013701690900100019071071093093011901190152015201680国内厂商代号及国外品牌代号厂商代号厂商代号国外品牌（厂）名代号万马长治HI瑞典SKF公司SKF瓦轴ZWZ东莞TR口本精工公司NSK哈轴HRB振华SX口本东洋轴承公司XTX洛轴LYC万向QC德国乔治沙弗公司FAG上滚S

19、G向明XI日本光洋精工公司K0Y0新中浦SCP托林顿TWB口本KYK社渚QX飞虹SFH口本不二越公司NACHI合肥HF海红HH口本IK0浙滚|TMB|常州|NF日本EASE南安|FK|西北|NXZ口本IJK上微SW口本EZO轴承类型的选择选择轴承类型时，全而掌握轴承的使用条件是至关重要的。下表列出了主要的分析项目:分析项目选择方法1轴承的安装空间能容纳于轴承安装空间内的轴承型由于设计轴系时注重轴的刚性和强度,因此一般先确定轴径，即轴承内径。但滚动轴承有多种尺寸系列和类型，应从中选择最为含适的轴承类型。2）负荷抽承负荷的大小、方向和性明轴承的负荷能力用基本额定负荷表示，其数值战于轴承尺寸表轴承负荷富于变化，如负荷的大小、是否只有径向负荷、轴向负荷是单向还是双向、振动或冲击的程度等等，在考虑了这些因素后，再来选择最为含适的轴承类型。一般来说，相同内径的轴承的径向负荷能力按下列顺序递增：深沟原轴承V角接触球轴承V圆柱滚子轴承V圆锥滚子轴承V调心滚子轴承3）转速能适应机械转速的轴承类型轴承转速的界限值基准用极限转速表示,其数值战于轴承尺寸表轴承的极限