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内圈、内套、衬套

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内圈或者叫内套,有时也叫衬套,一般是用轴承钢作为材料经 淬火精密磨削加工而成,主要是用于轴不能作为直接滚道使用的情况下镶嵌于轴上,从而达到辅助安装的目的。标准内圈都是按照P0的尺寸公差和几何精度进行加工的,所以装配后达到正常的工作游隙。
     ja--IR内圈经热处理和精密加工而成,尺寸公差和几何精度符合国家标准,内圈滚道面两端一般有导向倒角,以便安装。它适用于轴不能进行热处理、不能直接作为滚道的场合。内圈与无内圈滚针轴承配合使用时达到正常的工作游隙。
LR内圈的公差值大于IR内圈,端面未经磨削,价格也较低,常与冲压外圈滚针轴承配合使用。

主要特点

  1. 硬度高、刚性大;
  2. 规格多,方便选择;
  3. 尺寸范围跨度大。

结构见下表:


公制尺寸
英制尺寸结构说明
IRIRB、MI标准公差,端面磨削
LRLRB,大公差,端面未磨削
IRT
标准公差,带油槽,端面磨削
LRT
大公差,带油槽,端面未磨削
    • 材料:GCr15轴承钢
    • 加工:车制后磨削
    • 热处理:淬火(特殊要求高温回火)

 

轴 径

Shaft

Diameter

代号

 Designation

外形尺寸

Boundary Dimensions

重量

Mass

近似

Approx


轴 径

Shaft

Diameter

代号

 Designation

外形尺寸

Boundary Dimensions

重量

Mass

近似

Approx

dFBdFB
mmmmgmmmmg
5IR5X8X1258122.7915IR15X18X16.5151816.59.9
IR5X8X1658163.75IR15X19X1615191612.8
6IR6X9X1269123.17IR15X19X2015192016.4
IR6X9X1669164.3IR15X20X1215201212.1
IR6X10X10610103.7IR15X20X1315201313.5
IR6X10X12610124.6IR15X20X1415201414.7
7IR7X10X10.571010.53.09IR15X20X2315202324.4
IR7X10X12710123.6117IR17X20X1617201610.7
IR7X10X16710164.9IR17X20X16.5172016.511.1
7.8IR6X12X10.5C7.812.210.7
IR17X20X2017202013.5
8IR8X12X10812104.8IR17X20X20.5172020.513.8
IR8X12X10.581210.55IR17X20X30.5172030.520.6
IR8X12X12812125.7IR17X21X1617211614.3
IR8X12X12.581212.55.9IR17X21X2017212018
9IR9X12X12912124.5IR17X22X1317221314.9
IR9X12X16912166.1IR17X22X1417221416.4
10IR10X13X12.5101312.55.2IR17X22X1617221618.7
IR10X14X121014127.3IR17X22X2317222327.1
IR10X14X131014137.4IR17X24X2017242033.6
IR10X14X14101414820IR20X24X1620241616.5
IR10X14X161014169.2IR20X24X2020242021.3
IR10X14X2010142011.6LR20X25X12.5202512.516.3
12IR12X15X121215125.8IR20X25X1620251621.1
IR12X15X12.5121512.56.1LR20X25X16.5202516.521.7
IR12X15X161215168IR20X25X1720251722.4
IR12X15X16.5121516.58.1IR20X25X1820251824.3
IR12X15X22.5121522.510.9IR20X25X2020252027.5
IR12X16X121216127.9IR20X25X20.5202520.528.2
IR12X16X131216138.7IR20X25X26.5202526.536.1
IR12X16X141216149.5IR20X25X3020253040.9
IR12X16X1612161610.9IR20X25X38.5202538.552.5
IR12X16X2012162013.5IR20X28X2020282045.2
IR12X16X2212162214.922IR22X26X1622261617.5
IR12X16X22.5121622.5
IR22X26X2022262023.2
IR12X14X15.5121415.5
IR22X28X1722281729.8
IR12X17X22.5121722.5
IR22X28X2022282035
14IR14X17X1714171710IR22X28X20.5222820.536
15LR15X18X12.5151812.57.2IR22X28X3022283026.7
IR15X18X161518169.625IR25X29X2025292025.5

 

轴 径

Shaft

Diameter

代号

  Designation

外形尺寸

Boundary Dimensions

重量

Mass

近似

Approx


轴 径

Shaft

Diameter

代号

  Designation

外形尺寸

Boundary Dimensions

重量

Mass

近似

Approx

dFBdFB
mmmmgmmmmg
25IR25X29X3025293039.335IR35X40X1735401738.3
LR25X30X12.5253012.520IR35X40X2035402044.4
IR25X30X1625301626IR35X40X20.5354020.546.1
LR25X30X16.5253016.526.7IR35X40X3035403067.9
IR25X30X1725301727.5IR35X42X2035422063.9
IR25X30X1825301829.8IR35X42X20.5354220.566
IR25X30X2025302032.6IR35X42X2135422167.7
IR25X30X20.5253020.533.5IR35X42X2335422374
IR25X30X26.5253026.543.3IR35X42X36354236117
IR25X30X3025303050.1IR35X43X2235432282
IR25X30X322530325338IR38X43X2038432048.1
IR25X30X38.5253038.563.8IR38X43X3038433073.6
IR25X32X2225322251.740LR40X45X16.5404516.541.4
28IR28X32X1728321724.5IR40X45X1740451742.5
IR28X32X2028322028.4IR40X45X2040452050.5
IR28X32X3028323043.8IR40X45X20.5404520.552.5
28.575IRB182028.57534.92532
IR40X45X3040453077.1
29IR29X32X1329321314.8IR40X48X2240482292.3
30IR30X35X12.5303512.523.3IR40X48X2340482397.3
IR30X35X1330351325IR40X48X40404840170
IR30X35X1630351630.8IR40X50X20405020106
IR30X35X16.5303516.531.4IR40X50X22405022118
IR30X35X1730351732.3IR40X45X22.5404522.5
IR30X35X1830351835.342IR42X47X2042472053.5
IR30X35X2030352040IR42X47X3042473081
IR30X35X20.5303520.540.745LR45X50X20.5455020.558.8
IR30X35X2630352650.3IR45X50X2545502571.1
IR30X35X3030353058.9IR45X50X25.5455025.573.7
IR30X37X1830371850IR45X50X35455035101
IR30X37X2230372260.8IR45X52X2245522289
IR30X38X2030382064.8IR45X52X2345522393
32IR32X37X2032372042IR45X52X40455240164
IR32X37X3032373062.7IR45X55X20455520117
IR32X40X2032402068IR45X55X22455522130
IR32X40X36324036124IR45X50X20455020
33IR33X37X1333371321.9IR45X50X26455026
34IR34X42X20344220
IR45X50X40455040
35LR35X40X12.5354012.527.245.2IR45.2X58X3645.25836
LR35X40X16.5354016.537.447IR47X60X35476035

 

轴 径

Shaft

Diameter

代号

  Designation

外形尺寸

Boundary Dimensions

重量

Mass

近似

Approx


轴 径

Shaft

Diameter

代号

  Designation

外形尺寸

Boundary Dimensions

重量

Mass

近似

Approx

dFBdFB
mmmmgmmmmg
50IR50X55X2050552062.675IR75X85X35758535336
LR50X55X20.5505520.564.1IR75X85X54758554520
IR50X55X2550552577.880IR80X90X25809025254
IR50X55X35505535112IR80X90X30809030304
IR50X58X22505822115IR80X90X35809035355
IR50X58X23505823119IR80X90X54809054550
IR50X58X4050584020985IR85X95X26859526280
IR50X60X20506020129IR85X95X36859536390
IR50X60X25506025163IR85X100X358510035580
IR50X60X28506028183IR85X100X6385100631050
55IR55X60X2555602586IR88X100X308810030
IR55X60X3555603512190IR90X100X269010026294
IR55X63X25556325141IR90X100X309010030340
IR55X63X45556345256IR90X100X369010036406
IR55X65X28556528198IR90X105X359010535610
60IR60X65X41606541
IR90X105X6390105631110
IR60X68X2560682515295IR95X105X269510526313
IR60X68X35606835213IR95X105X369510536430
IR60X68X45606845275IR95X110X359511035643
IR60X70X25607025195IR95X110X6395100631170
IR60X70X28607028216100IR100X110X3010011030370
65IR65X72X25657225142IR100X110X4010011040505
IR65X72X45657245259IR100X115X4010011540775
IR65X73X25657325164110IR110X120X3011012030409
IR65X73X35657335232IR110X125X4011012540840
IR65X75X28657528230120IR120X130X3012013030442
70IR70X80X25708025224IR120X135X45120135451000
IR70X80X30708030267130IR130X145X3513014535855
IR70X80X35708035313IR130X150X50130150501690
IR70X80X54708054487140IR140X155X3514015535917
IR70X80X56708056506IR140X160X50140160501800
75IR75X85X25758525238150IR150X165X40150165401120
IR75X85X30758530287160IR160X175X40160175401200


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