标准公差及基本偏差表

1、表标标准准公公差差表表 (gb1800-79)(gb1800-79)基本尺寸mm公差等级it01 it0it1it2it3it4it5it6it7it8it9it10 it11 it12 it13 it14 it15 it16 it17 it18大于至mmm30.30.50.81.2234610142540600.1 0.14 0.250.40.611.4360.40.611.52.54581218304875 0.12 0.180.3 0.48 0.751.21.86100.40.611.52.54691522365890 0.15 0.22 0.36 0.580.91.52.210180.

2、50.81.223581118274370110 0.18 0.27 0.430.71.11.82.718300.611.52.54691321335284130 0.21 0.33 0.52 0.841.32.13.330500.611.52.5471116253962100160 0.25 0.39 0.6211.62.53.950800.81.2235813193046741201900.3 0.46 0.741.21.934.68012011.52.546101522355487140220 0.35 0.54 0.871.42.23.55.41201801.223.558121825

3、40631001602500.4 0.6311.62.546.3180250234.57101420294672115185290 0.46 0.72 1.15 1.852.94.67.22503152.5468121623325281130210320 0.52 0.811.32.13.25.28.13154003579131825365789140230360 0.57 0.891.42.33.65.78.940050046810152027406397155250400 0.63 0.97 1.552.546.39.75006304.569111622304470110175280440

4、0.71.1 1.752.84.471163080057101318253550801252003205000.8 1.2523.258 12.580010005.58111521294056901402303605600.91.42.33.65.6914100012506.59131824344666105165260420660 1.05 1.652.64.26.6 10.5 16.512501600811152129405478125195310500780 1.25 1.953.157.8 12.5 19.5160020009131825354865921502303706009201

5、.52.33.769.215232000250011152230415777110175280440700 1100 1.752.84.4711 17.5282500315013182636506993135210330540860 13502.13.35.48.6 13.52133注：基本尺寸小于时，无至表表拉拉深深件件公公差差表表材料厚度直径基本尺寸33-6 61018305080120 180 250 360-10-18-30-50-80-120 -180 -250 -315 -5001it12-131-2it142-3it153-5it16表轴的基本偏差表基本偏差上偏差esjs下偏差e

6、i下偏差eiabccddeefffgghjkmnprstuvx基本尺寸公差等级公差等级大于至所有等级偏差it/25-678 4-73,7所有等级所有等级3 -270 -140-60-34-20-14-10-6-4-20-2-4-6002461014 -18 -2036 -270 -140-70-46-30-20-14-10-6-40-2-4 -1048121519 -23 -28610 -280 -150-80-56-40-25-18-13-8-50-2-5 -10610151923 -28 -341014-290 -150 -95-50-32-16-60-3-6-10712182328-33

7、-40141839451824-300 -160 -110-65-40-20-70-4-8-20815222835-4147542430414855643040 -310 -170 -120-80-50-25-90-5-10-20917263443486068804050 -320 -180 -130547081975065 -340 -190 -140-100 -60-30-100-7-12-20112032415366871021226580 -360 -200 -15043597510212014680100 -380 -220 -170-120 -72-36-120-9-15-3013

8、2337517191124146178100120 -410 -240 -1805479104144172210120140 -460 -260 -200-145 -85-43-140-11-18-301527436392122170202248140160 -520 -280 -21065100134190228280160180 -580 -310 -23068108146210252310180200 -660 -340 -240-170 -100-50-150-13-21-4017315077122166236284350200225 -740 -380 -26080130180258

9、310385225250 -820 -420 -28084140196284340425250280 -920 -480 -300-190 -110-56-170-16-26-4020345694158218315385475280315 # -540 -33098170240350425525315355 # -600 -360-210 -125-62-180-18-28-40213762108190268390475590355400 # -680 -400114208294435530660400450 # -760 -440-230 -135-68-200-20-32-50234068

10、126232330490595740450500 # -840 -480132252360540660820公差等级至至500560-260 -145-76-220偏差it/20264478150280400600560630155310450660630710-290 -160-80-2400305088175340500740710800185380560840800900-320 -170-86-260034561002104306209409001000220470680105010001120-350 -195-98-280040661202505207801150112012502

11、60580840130012501400-390 -220-110-300048781403006409601450140016003307201050160016001800-430 -240-120-3200589217037082012001850180020004009201350200020002240-480 -260-130-3400681101954401000150023002240250046011001650250025002800-520 -290-145-38007613524055012501900290028003150580140021003200注：基本尺寸小

12、于时，各级的a和b均不采用js的数值：对至，若的数值为奇数，则js=(it-1)/2. 示例:8e7查it7=0.015可知上偏差为-0.025,下偏差则为-0.025-0.015=-0.04.表4孔的基本偏差表基本偏差下偏差eijs上偏差es上偏差esabccddeefffgghjkmnp-zcprst基本尺寸公差等级公差等级大于至所有等级偏差it/2678 8888887732701406034201410642024600-2-2-4-4在大于级的相应数值上增加一个值-6-10-14 -362701407046302014106405610 -1+-4+-4 -8+0-12-15-19

13、-6102801508056402518138505812 -1+-6+-6 -10+0-15-19-23 -101429015095-5032166061015 -1+-7+ -7 -12+0-18-23-28-14181824300160110-6540207081220 -2+-8+ -8 -15+0-22-28-35-2430-413040310170120-80502590101424 -2+-9+ -9 -17+0-26-34-43-484050320180130-545065340190140-1006030100131828 -2+- -11+-11-20+0-32-41-53

14、-666580360200150-43-59-7580100380220170-1207236120162234 -3+- -13+-13-23+0-37-51-71-91100120410240180-54-79-104120140460260200-1458543140182641 -3+- -15+-15-27+0-43-63-92-122140160520280210-65-100-134160180580310230-68-108-146180200660340240-170100-50-150223047 -4+- -17+-17-31+0-50-77-122-1662002257

15、40380260-80-130-180偏差it/2225250820420280-84-140-196250280920480300-190110-56-170253655 -4+- -20+-20-34+0-56-94-158-218280315 1050540330-98-170-240315355 1200600360-210125-62-180293960 -4+- -21+-21-37+0-62-108-190-268355400 1350680400-114-208-294400450 1500760440-230135-68-200334366 -5+- -23+-23-40+0

16、-68-126-232-330450500 1650840480-132-252-360公差等级至至50056026014576220偏差it/20-26-44-78-150-280-400560630-155-310-450630710290160802400-30-50-88-175-340-500710800-185-380-560800900320170862600-34-56-100-210-430-6209001000-220-470-68010001120350195982800-40-66-120-250-520-78011201250-260-580-840125014003

17、902201103000-48-78-140-300-640-96014001600-330-720 -1050160018004302401203200-58-92-170-370-820 -120018002000-400-920 -1350200022404802601303400-68-110-195-440 -1000 -150022402500-460 -1100 -1650250028005202901453800-76-135-240-550 -1250 -190028003150-580 -1400 -2100偏差it/2在大于级的相应数值上增加一个值-170100-50-1

18、50223047 -4+- -17+-17-31+0-50myzzazbzc-26324060-35425080-42526797-506490130-60771081506373981361887588118160218941121482002741141361802423251441722263004051742102743604802142583354455852543104005256903003654706208003404155357009003804656007801000425520670880115047057574096012505206408201050135058071

19、0920120015506507901000130017007309001150150019008201000130016502100920110014501850240010001250160021002600下偏差ei公差等级所有等级至muvxyzzazbzc345678-18 -20 -26-32-40-600-23 -28 -35-42-50-8011.51346-28 -34 -42-52-67-9711.52367-33-40 -50-64-90-130123379-39-45 -66-77-108-150-41-47-54-63-73-98-136-1881.5234812-48

20、-55-64-75-88-118-160-218-60-68-80-94-112-148-200-2741.5345914-70-81-97-114-136-180-242-325-87-102-122-144-172-226-300-40523561116-102-120-146-174-210-274-360-480-124-146-178-214-258-335-445-53524571319-144-172-210-254-310-400-525-690-170-202-248-300-365-470-620-80034671523-190-228-280-340-415-535-700-900-210-252-310-380-465-600-780 -1000-236-284-350-425-520-670-8