Fluid Power Systems — O-rings
INTERNATIONALSTANDARDISO3601-1Fifth edition2012-03-01Fluid power systems — O-rings —Part 1:Inside diameters, cross-sections,tolerances and designation codesTransmissions hydrauliques et pneumatiques — Joints toriques —Partie 1: Diamètres intérieurs, sections, tolérances et codesd'identification dimensionnelleReference numberISO 3601-1:2012(E)Licensed to: Rockhill, Denise MsDownloaded: 2017-01-19Single user licence only, copying and networking prohibited ISO 2012
ISO 3601-1:2012(E)COPYRIGHT PROTECTED DOCUMENT ISO 2012All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means,electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below orISO's member body in the country of the requester.ISO copyright officeCase postale 56 CH-1211 Geneva 20Tel. 41 22 749 01 11Fax 41 22 749 09 47E-mail copyright@iso.orgWeb www.iso.orgPublished in SwitzerlandiiLicensed to: Rockhill, Denise MsDownloaded: 2017-01-19Single user licence only, copying and networking prohibited ISO 2012 – All rights reserved
ISO 3601-1:2012(E)ContentsPageForeword . ivIntroduction . v1Scope . 12Normative references . 13Terms and definitions . 14Symbols . 15Configuration . 26Inside diameters, d1, cross-sections (section diameter), d2, and tolerances . 27Designation codes. 38Methods of measuring for receiving inspection . 49Identification statement (reference to this part of ISO 3601) . 4Annex A (normative) Recommended inside diameter tolerances and cross-section tolerances fornon-standard (custom) O-ring values . 31Annex B (informative) Example method of measuring for receiving inspection . 34Bibliography . 36Licensed to: Rockhill, Denise MsDownloaded: 2017-01-19Single user licence only, copying and networking prohibited ISO 2012 – All rights reservediii
ISO 3601-1:2012(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies(ISO member bodies). The work of preparing International Standards is normally carried out through ISOtechnical committees. Each member body interested in a subject for which a technical committee has beenestablished has the right to be represented on that committee. International organizations, governmental andnon-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with theInternational Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.The main task of technical committees is to prepare International Standards. Draft International Standardsadopted by the technical committees are circulated to the member bodies for voting. Publication as anInternational Standard requires approval by at least 75 % of the member bodies casting a vote.Attention is drawn to the possibility that some of the elements of this document may be the subject of patentrights. ISO shall not be held responsible for identifying any or all such patent rights.ISO 3601-1 was prepared by Technical Committee ISO/TC 131, Fluid power systems, Subcommittee SC 7,Sealing devices.This fifth edition cancels and replaces the fourth edition (ISO 3601-1:2008), which has been technicallyrevised. It also incorporates the Technical Corrigenda ISO 3601-1:2008/Cor 1:2009 and ISO 3601-1:2008/Cor2:2009.ISO 3601 consists of the following parts, under the general title Fluid power systems — O-rings: Part 1: Inside diameters, cross-sections, tolerances and designation codes Part 2: Housing dimensions for general applications Part 3: Quality acceptance criteria Part 4: Anti-extrusion rings (back-up rings) Part 5: Suitability of elastomeric materials for industrial applicationsivLicensed to: Rockhill, Denise MsDownloaded: 2017-01-19Single user licence only, copying and networking prohibited ISO 2012 – All rights reserved
ISO 3601-1:2012(E)IntroductionIn fluid power systems, power is transmitted and controlled through a fluid (liquid or gas) under pressure withinan enclosed circuit. To avoid leakage or to seal different chambers of a component from each other, sealingdevices are used. O-rings are one type of sealing device.Licensed to: Rockhill, Denise MsDownloaded: 2017-01-19Single user licence only, copying and networking prohibited ISO 2012 – All rights reservedv
Licensed to: Rockhill, Denise MsDownloaded: 2017-01-19Single user licence only, copying and networking prohibited
INTERNATIONAL STANDARDISO 3601-1:2012(E)Fluid power systems — O-rings —Part 1:Inside diameters, cross-sections, tolerances and designationcodes1ScopeThis part of ISO 3601 specifies the inside diameters, cross-sections, tolerances and designation codes forO-rings used in fluid power systems for general industrial and aerospace applications.The dimensions and tolerances specified in this part of ISO 3601 are suitable for any elastomeric material,provided that suitable tooling is available.NOTEThe tooling most commonly available is based on 70 IRHD NBR shrinkage rates (see ISO 48). For materialsthat shrink differently from this standard NBR compound, a special mould can be required to maintain the mean diametersand the tolerance limits listed.2Normative referencesThe following referenced documents are indispensable for the application of this document. For datedreferences, only the edition cited applies. For undated references, the latest edition of the referenceddocument (including any amendments) applies.ISO 48, Rubber, vulcanized or thermoplastic — Determination of hardness (hardness between 10 IRHD and100 IRHD)ISO 3601-3, Fluid power systems — O-rings — Part 3: Quality acceptance criteriaISO 5598, Fluid power systems and components — Vocabulary3Terms and definitionsFor the purposes of this document, the terms and definitions given in ISO 5598 apply.4SymbolsThe following symbols are used in this part of ISO 3601: d1O-ring inside diameter; d2O-ring cross-section diameter.Licensed to: Rockhill, Denise MsDownloaded: 2017-01-19Single user licence only, copying and networking prohibited ISO 2012 – All rights reserved1
ISO 3601-1:2012(E)5ConfigurationThe shape of the O-ring shall be toroidal, as shown in Figure 1.Figure 1 — Typical O-ring configuration6Inside diameters, d1, cross-sections (section diameter), d2, and tolerances6.1 The combinations of inside diameters and cross-section diameters shall be chosen depending on theapplication: from Tables 1 through 6 for general industrial applications; from Tables 7 through 11 for aerospace applications.6.2 For industrial applications, two classes of inside diameter tolerances, class A and class B, are specified.The tolerance of class B O-rings is based on Equation (A.1). Class A O-rings have tighter inside diametertolerances than class B O-rings and are suitable for industrial or aerospace applications when the applicationor the housing require tighter tolerances. Class B O-rings have dimensions and tolerances suitable forgeneral-purpose applications. The inside diameter tolerances are based on Equation (A.1). For information,Figure 2 shows a graphical comparison of the inside-diameter tolerances for class A and class B O-rings.6.3 Cross-section tolerances for non-standard (custom) O-rings for general industrial applications not listedin Tables 1 through 6 can be chosen from Table A.1. Tolerances for inside diameters for non-standard(custom) class A O-rings are listed in Table A.2. Equation (A.1) can be used to calculate inside diametertolerances for non-standard (custom) class B O-rings.In marginal cases, the compliance with the limits of the shape deviations and surface imperfections should beconsidered besides the dimensional tolerances. See ISO 3601-3.2Licensed to: Rockhill, Denise MsDownloaded: 2017-01-19Single user licence only, copying and networking prohibited ISO 2012 – All rights reserved
ISO 3601-1:2012(E)KeyXO-ring inside diameter, d1, expressed in millimetresY tolerances, expressed in millimetres12class A toleranceclass B toleranceFigure 2 — Graphical comparison of inside diameter tolerances for class A and class B O-rings7Designation codes7.1 O-rings for general industrial applications that conform to this part of ISO 3601 shall be designated asfollows:a)the word “O-ring” followed by a hyphen;b)“ISO3601-1” followed by a hyphen;c)the size code from the relevant table (see Tables 1 through 6) and “A” or “B” for the inside diametertolerance class, followed by a hyphen;d)the nominal inside diameter and cross-section dimensions, separated by an “ ” and followed by ahyphen;Licensed to: Rockhill, Denise MsDownloaded: 2017-01-19Single user licence only, copying and networking prohibited ISO 2012 – All rights reserved3
ISO 3601-1:2012(E)e)the grade letter (N, S or CS), in accordance with ISO 3601-3.EXAMPLE 1O-ring-ISO3601-1-011A-7,65 1,78-SEXAMPLE 2O-ring-ISO3601-1-125B-32,99 2,62-N7.2O-rings for aerospace applications that conform to this part of ISO 3601 shall be designated as follows:a)the word “O-ring” followed by a hyphen;b)“ISO3601-1” followed by the letter “A” (to designate an aerospace application), followed by a hyphen;c)the size code from the relevant table (see Tables 7 through 11), followed by a hyphen;d)the nominal inside diameter and cross-section dimensions, separated by an “ ” and followed by ahyphen;e)the grade letter (N, S or CS), in accordance with ISO 3601-3.EXAMPLE 1O-ring-ISO3601-1A-C0545-54,5 3,55-SEXAMPLE 2O-ring-ISO3601-1A-D1250-125 5,3-CS8Methods of measuring for receiving inspectionWhen it is necessary to inspect O-rings that conform to this part of ISO 3601 at the time of customer receipt,the inspection procedure shall be agreed upon by the supplier and purchaser at the time of order. Annex Bprovides possible methods for such a procedure for information.9Identification statement (reference to this part of ISO 3601)Manufacturers are strongly recommended to use the following statement in test reports, catalogues and salesliterature when electing to comply with this part of ISO 3601:“O-ring inside diameters, cross-sections, tolerances and designation code are in accordance withISO 3601-1:2011, Fluid power systems — O-rings — Part 1: Inside diameters, cross-sections, tolerances anddesignation codes.”Table 1 — Size code, size, inside diameter and inside diameter tolerances of class A and class BO-rings for general industrial applications —Cross-section diameter, d2, of 1,02 mm, 1,27 mm and 1,52 mmInside diameterSizecodeSized1nom.Tolerancemmd1nom.mmClass A Class Bin001 0,74 1,02 0,74002 1,07 1,27 1,07003 1,42 1,52 1,4240,029 0,10 0,120,0420,056Cross-section diameterToleranceind2nom.Class A Class B mm1,02Tol.d2nom.Tol.Volumeref.cm3in0,040in30,005 0,000 3 0,004 0,005 1,27 0,08 0,050 0,003 0,010 0,000 61,520,060Licensed to: Rockhill, Denise MsDownloaded: 2017-01-19Single user licence only, copying and networking prohibited0,016 0,001 0 ISO 2012 – All rights reserved
ISO 3601-1:2012(E)Table 2 — Size code, size, inside diameter and inside diameter tolerances of class A and class BO-rings for general industrial applications —Cross-section diameter, d2, of 1,78 mm 0,08 mm (0,070 in 0,003 in)Inside diameterSizecodeSized1nom.Tolerancemmd1nom.mmClass A Class Bincm3in30,0280,001 70,0340,002 10,1140,0360,002 20,1450,0430,002 60,0490,003 00,0560,003 40,0610,003 70,0740,004 50,0850,005 20,0980,006 00,1110,006 80,1230,007 50,1360,008 30,1470,009 00,1610,009 80,1720,010 50,1850,011 30,1970,012 00,2100,012 80,2230,013 60,2340,014 30,2470,015 10,2590,015 80,2720,016 60,2830,017 30,3080,018 80,3340,020 4 0,0170,3590,021 9 0,0180,3830,023 40041,78 1,781,780052,57 1,782,570062,90 1,782,900073,68 1,783,680084,47 1,784,470095,28 1,785,280106,07 1,786,07 0,160,2390117,65 1,787,65 0,170,3010129,25 1,789,25 0,180,36401310,82 1,7810,82 0,200,42601412,42 1,7812,42 0,210,48901514,00 1,7814,00 0,220,55101615,60 1,7815,60 0,230,61401717,17 1,7817,17 0,240,67601818,77 1,7818,77 0,260,73901920,35 1,7820,35 0,270,80102021,95 1,7821,95 0,280,86402123,52 1,7823,52 0,290,92602225,12 1,7825,12 0,300,98902326,70 1,7826,70 0,311,05102428,30 1,7828,30 0,331,11402529,87 1,7829,87 0,341,17602631,47 1,7831,47 0,351,23902733,05 1,7833,05 0,361,30102834,65 1,7834,65 0,371,36402937,82 1,7837,82 0,391,48903041,00 1,7841,00 0,421,61403144,17 1,7844,17 0,441,73903247,35 1,7847,35 0,461,864Class AClass B0,070 0,13 0,14 0,13 0,18 0,23 0,25 0,28 0,33 0,38 0,15 0,0050,1010,1760,208 0,005 0,006 0,007 0,008 0,007 0,009 0,010 0,009 0,011 0,010 0,012 0,013 0,011 0,014 0,015 0,013 0,015 0,016Licensed to: Rockhill, Denise MsDownloaded: 2017-01-19Single user licence only, copying and networking prohibited ISO 2012 – All rights reservedVolumeref.Tolerancein5
ISO 3601-1:2012(E)Table 2 (continued)Inside diameterSizecodeSized1nom.mmTolerancemmClass Ad1nom.Class BinVolumeref.ToleranceinClass AClass Bcm3in303350,52 1,7850,52 0,481,989 0,0190,4080,024 903453,70 1,7853,70 0,512,114 0,0200,4330,026 403556,87 1,7856,87 0,532,239 0,0210,4570,027 903660,05 1,7860,05 0,552,364 0,0220,4820,029 403763,22 1,7863,22 0,572,4890,5060,030 903866,40 1,7866,40 0,592,6140,5330,032 503969,57 1,7869,57 0,622,739 0,0240,5570,034 004072,75 1,7872,75 0,642,864 0,0250,5820,035 504175,92 1,7875,92 0,662,989 0,0260,6060,037 004282,27 1,7882,27 0,703,239 0,0280,6550,040 004388,62 1,7888,62 0,753,489 0,0290,7050,043 004494,97 1,7894,97 0,793,739 0,0310,7550,046 1045101,32 1,78101,32 0,833,989 0,0330,8050,049 1046107,67 1,78107,67 0,884,239 0,0350,8540,052 1047114,02 1,78114,02 0,924,489 0,0360,9030,055 1048120,37 1,78120,37 0,964,739 0,0380,9520,058 1049126,72 1,78126,72 1,014,989 0,0401,0030,061 2050133,07 1,78133,07 1,055,239 0,0411,0520,064 �–––6 0,46 0,51 0,61 0,69 0,76 0,94–– 0,018 0,023 0,020 0,024 0,027 0,030 0,037––Licensed to: Rockhill, Denise MsDownloaded: 2017-01-19Single user licence only, copying and networking prohibited ISO 2012 – All rights reserved
ISO 3601-1:2012(E)Table 3 — Size code, size, inside diameter and inside diameter tolerances of class Aand class B O-rings for general industrial applications —Cross-section diameter, d2, of 2,62 mm 0,08 mm (0,103 in 0,003 in) for class A O-ringsand cross-section diameter, d2, of 2,62 mm 0,09 mm (0,103 in 0,004 in) for class B O-ringsSizecoded1nom.mmSizeInside diameterd1Tolerancemmnom.Class A Class B 0,12cm3in30,0660,004 00,0790,004 80,1120,0920,005 60,1430,1050,006 40,1200,007 30,1330,008 10,1460,008 90,1720,010 50,2000,012 20,2260,013 80,2520,015 40,2800,017 10,3060,018 70,3330,020 30,3610,022 00,3870,023 60,4150,025 30,4410,026 90,4670,028 50,4950,030 20,5210,031 80,5470,033 40,5750,035 10,6010,036 70,6280,038 30,6550,040 00,6820,041 60,7080,043 20,7360,044 90,7620,046 50,7900,048 20,8160,049 80,8420,051 4in1021,24 2,621,241032,06 2,622,061042,84 2,622,841053,63 2,623,631064,42 2,624,421075,23 2,625,231086,02 2,626,02 0,160,2371097,59 2,627,59 0,170,2991109,19 2,629,19 0,180,36211110,77 2,6210,77 0,200,42411212,37 2,6212,37 0,210,48711313,94 2,6213,94 0,220,54911415,54 2,6215,54 0,230,61211517,12 2,6217,12 0,240,67411618,72 2,6218,72 0,260,73711720,29 2,6220,29 0,270,79911821,89 2,6221,89 0,280,86211923,47 2,6223,47 0,290,92412025,07 2,6225,07 0,300,98712126,64 2,6226,64 0,311,04912228,24 2,6228,24 0,331,11212329,82 2,6229,82 0,341,17412431,42 2,6231,42 0,351,23712532,99 2,6232,99 0,361,29912634,59 2,6234,59 0,371,36212736,17 2,6236,17 0,381,42412837,77 2,6237,77 0,391,48712939,34 2,6239,34 0,401,54913040,94 2,6240,94 0,421,61213142,52 2,6242,52 0,431,67413244,12 2,6244,12 0,441,73713345,69 2,6245,69 0,451,79913447,29 2,6247,29 0,46 1,862 0,13 0,14 0,13 0,18 0,23 0,25 0,30 0,38 0,15Class AClass B0,049 0,0050,0810,1740,206 0,005 0,006 0,007 0,008 0,007 0,009 0,009 0,010 0,011 0,010 0,012 0,013 0,014 0,012 0,015 0,016 0,015 0,017 0,018Licensed to: Rockhill, Denise MsDownloaded: 2017-01-19Single user licence only, copying and networking prohibited ISO 2012 – All rights reservedVolumeref.Tolerancein7
ISO 3601-1:2012(E)Table 3 (continued)Inside diameterSizecodeSized1nom.mm8TolerancemmClass Ad1nom.Class BinVolumeref.ToleranceinClass Acm3in30,8700,053 10,8960,054 70,9240,056 40,9500,058 00,9770,059 61,0050,061 31,0310,062 91,0570,064 51,0850,066 21,1110,067 81,1370,069 41,1650,071 11,1910,072 71,2180,074 31,2450,076 01,2720,077 6 0,0261,3260,080 9 0,0281,4320,087 4 0,0291,5400,094 0 0,0311,6470,100 5 0,0331,7550,107 1 0,0351,8620,113 6 0,0361,9700,120 2Class B13548,90 2,6248,90 0,471,92513650,47 2,6250,47 0,481,98713752,07 2,6252,07 0,492,05013853,64 2,6253,64 0,512,11213955,25 2,6255,25 0,522,17514056,82 2,6256,82 0,532,23714158,42 2,6258,42 0,542,30014259,99 2,6259,99 0,552,36214361,60 2,6261,60 0,562,42514463,17 2,6263,17 0,572,48714564,77 2,6264,77 0,582,55014666,34 2,6266,34 0,592,61214767,95 2,6267,95 0,612,67514869,52 2,6269,52 0,622,73714971,12 2,6271,12 0,632,80015072,69 2,6272,69 0,642,86215175,87 2,6275,87 0,662,98715282,22 2,6282,22 0,703,23715388,57 2,6288,57 0,753,48715494,92 2,6294,92 0,793,737155101,27 2,62101,27 0,833,987156107,62 2,62107,62 0,884,237157113,97 2,62113,97 0,924,487158120,32 2,62120,32 0,964,737 0,0382,0760,126 7159126,67 2,62126,67 1,004,987 0,0402,1830,133 2160133,02 2,62133,02 1,055,237 0,0412,2910,139 8161139,37 2,62139,37 1,095,487 0,0432,3970,146 3162145,72 2,62145,72 1,135,737 0,0452,5060,152 9163152,07 2,62152,07 1,175,987 0,0462,6120,159 4164158,42 2,62158,42 1,226,237 0,0482,7200,166 0165164,77 2,62164,77 1,266,487 0,0502,8270,172 5166171,12 2,62171,12 1,306,737 0,0512,9330,179 0167177,47 2,62177,47 1,346,987 0,0533,0410,185 6 0,43 0,51 0,56 0,61 0,71 0,76 0,89 1,02 0,019 0,017 0,020 0,021 0,022 0,020 0,023 0,024 0,022 0,025 0,024 0,028 0,030 0,035 0,040Licensed to: Rockhill, Denise MsDownloaded: 2017-01-19Single user licence only, copying a
ISO 48, Rubber, vulcanized or thermoplastic — Determination of hardness (hardness between 10 IRHD and 100 IRHD) ISO 3601-3, Fluid power systems — O-rings — Part 3: Quality acceptance criteria. ISO 5598, Fluid power systems and components — Vocabulary. 3. Terms and definitions .
2.4 Homomorphism and quotient rings 28 2.5 Special rings 30 2.6 Modules 34 2.7 Rings with chain conditions 35 3. Smarandache rings and its properties 3.1 Definition of Smarandache ring with examples 38 3.2 Smarandache units in rings 41 3.3 Smarandache zero divisors in rings 46
Heavy Duty Back-Up Rings Heavy Duty back-up rings are configured with a greater axial thickness (T) dimension. The extra thickness provides more extrusion protec-tion for O-Rings. These rings are interchange-able with MS27595, MS28774, MS28782 and MS28783 back-up rings used in MIL-G-5514 packing glands. Heavy duty rings are available
L M A B CVT Revision: December 2006 2007 Sentra CVT FLUID PFP:KLE50 Checking CVT Fluid UCS005XN FLUID LEVEL CHECK Fluid level should be checked with the fluid warmed up to 50 to 80 C (122 to 176 F). 1. Check for fluid leakage. 2. With the engine warmed up, drive the vehicle to warm up the CVT fluid. When ambient temperature is 20 C (68 F .
Fluid Mechanics Fluid Engineers basic tools Experimental testing Computational Fluid Theoretical estimates Dynamics Fluid Mechanics, SG2214 Fluid Mechanics Definition of fluid F solid F fluid A fluid deforms continuously under the action of a s
Jul 09, 2015 · Tiny-Fogger/Tiny F07, Tiny-Compact/Tiny C07 Tiny-Fluid 42 Tiny FX Tiny-Fluid 42 Tiny S Tiny-Fluid 43 Unique 2.1 Unique-Fluid 43 Viper NT Quick-Fog Fluid 44 Viper NT Regular-Fog Fluid 45 Viper NT Slow-Fog Fluid 46 Martin K-1 Froggy’s Fog K-razy Haze Fluid 47 Magnum 2000 Froggy’s Fog Backwood Bay Fluid 48
seminear-rings using loops and groupoids which we call as groupoid near-rings, near loop rings, groupoid seminear-rings and loop seminear-ring. For all these concepts a Smarandache analogue is defined and several Smarandache properties are introduced and studied. The ninth chapter deals with fuzzy concepts in near-rings and gives 5
Missing rings & false rings (to identify these, need a "master chronology") Species limitations (some trees have no rings, non-annual rings, or poorly defined rings) Trees must crossdate! (can't develop a chronology or link to climate without this) Top of p 52 Today's class activity
Seal Rings The sets are comprised of double-turn rings in either 2 rings per set or 3 rings per set. The double-turn rings fit tighter in the bore or on the shaft, provide complete 360 surface contact and resist higher axial/radial forces than single-turn ring sets, for medium to heavy duty applications.
