1、 g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58ICS 21.100.10Plain bearings Wrapped bushes Part 1: DimensionsBRITISH STANDARDBS ISO 3547-1:2006BS I
2、SO 3547-1:2006This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 November 2006 BSI 2006ISBN 0 580 49523 XAmendments issued since publicationAmd. No. Date Commentscontract. Users are responsible for its correct application.Compliance with a Br
3、itish Standard cannot confer immunity from legal obligations.National forewordThis British Standard was published by BSI. It is the UK implementation of ISO 3547-1:2006. It supersedes BS ISO 3547-1:1999 which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee
4、MCE/12, Plain bearings.A list of organizations represented on MCE/12 can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a Reference numberISO 3547-1:2006(E)INTERNATIONAL STANDARD ISO3547-1Second edition2006-10-15Plain bearings Wra
5、pped bushes Part 1: Dimensions Paliers lisses Bagues roules Partie 1: Dimensions BS ISO 3547-1:2006ii iiiContents Page Foreword iv 1 Scope 1 2 Normative references 1 3 Terms and definitions .1 4 Symbols and units.2 5 Dimensions.2 6 Design .10 7 Example for calculation of inside diameter, Di.11 8 Des
6、ignation 12 Bibliography 13 BS ISO 3547-1:2006iv Foreword ISO (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 ISO technical committees. Each
7、member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International
8、 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 Standards
9、adopted by the technical committees are circulated to the member bodies for voting. Publication as an International 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
10、patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 3547-1 was prepared by Technical Committee ISO/TC 123, Plain bearings, Subcommittee SC 3, Dimensions, tolerances and construction details. This second edition cancels and replaces the first edition (I
11、SO 3547-1:1999), which has been technically revised. ISO 3547 consists of the following parts, under the general title Plain bearings Wrapped bushes: Part 1: Dimensions Part 2: Test data for outside and inside diameters Part 3: Lubrication holes, grooves and indentations Part 4: Materials The follow
12、ing parts are under preparation: Part 5: Checking the outside diameter Part 6: Checking the inside diameter Part 7: Measurement of wall thickness of thin-walled half-bearings and thin-walled bushes BS ISO 3547-1:20061Plain bearings Wrapped bushes Part 1: Dimensions 1 Scope This part of ISO 3547 spec
13、ifies the dimensions and designations of cylindrical and flanged wrapped bushes made of solid and multi-layer bearing material for plain bearing applications. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only
14、the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 3547-2:2006, Plain bearings Wrapped bushes Part 2: Test data for outside and inside diameters ISO 3547-4, Plain bearings Wrapped bushes Part 4: Materials ISO 4378-
15、1, Plain bearings Terms, definitions and classification Part 1: Design, bearing materials and their properties ISO 12301, Plain bearings Quality control techniques and inspection of geometrical and material quality characteristics ISO 13715, Technical drawings Edges of undefined shape Vocabulary and
16、 indication 3 Terms and definitions For the purposes of this document, the terms and definitions given in ISO 4378-1 apply. BS ISO 3547-1:20062 4 Symbols and units See Table 1. Table 1 Symbols and units Symbol Description Unit B Width of the bush mm CiInside chamfer mm CoOutside chamfer mm DiInside
17、diameter of the bush mm Di, chInside diameter of the bush in the ring gauge mm DflFlange diameter mm DHHousing bore diameter mm DoOutside diameter of the bush mm DSShaft diameter mm dch, 1Diameter of the checking block or ring gauge mm r Flange radius mm Ra Surface roughness m s1Thickness of the bac
18、king layeramm s2Thickness of the bearing material layeramm s3Wall thicknessamm sflFlange thickness mm aFor bushes which are made of a single material s1= s3or s2= s3. 5 Dimensions See Figure 1 and Tables 2 to 4. The largest dimension of the inside diameter of the bush in its pressed-in condition is
19、obtained from the largest dimension of the bore in the housing minus twice the smallest dimension of the wall thickness, s3. The smallest dimension of the inside diameter of the bush in its pressed-in condition can be obtained from the smallest dimension of the bore in the housing minus twice the gr
20、eatest dimension of the wall thickness, s3. This assumes that there is no expansion of the bore in the housing caused by pressing in the bush. In reality, the expansion depends on several factors, such as the stiffness of the housing and the bush. An example of the calculation is given in Clause 7.
21、The wall thickness limit deviation depends on whether or not there is a machining allowance in the bush bore and on the material type, as specified in ISO 3547-4. The preferred limit deviation series (A to E) is specified in Table 5. Instead of the wall thickness, the inside diameter, Di, ch, of the
22、 bush may be specified. Di, chis the inside diameter of the bush, when this is pressed into a ring gauge (Test C gauging in accordance with ISO 3547-2:2006, see also ISO 3547-6). BS ISO 3547-1:20063For bushes which are supplied with a machined bore (Series W), the limit deviations of the inside diam
23、eter of the bush, Di, ch, checked in a ring gauge, are given in Table 6. In no case shall wall thickness and inside diameter be given at the same time as the dimensions that are to be checked. The tolerance for the inside diameter, Di, ch, of the bush in the ring gauge is given in Table 6. The toler
24、ance of the inside diameter of a bush pressed into a housing is found from the sum of the tolerance for, Di, ch, and the tolerance of the housing bore. As in the case of the calculation of the inside diameter from the wall thickness, it is assumed that there is no expansion of the housing bore. Dime
25、nsions for the outside diameter, Do, of the bush are given in Table 7. BS ISO 3547-1:20064 Dimensions in millimetres Type C cylindrical bush Type F flanged bush Key 1 split aThickness of the bearing material layer: only valid as a basis for calculation in accordance with ISO 3547-2. bCimay be a cham
26、fer or break edge, in accordance with ISO 13715. c0,2 mm min. for nominal wall thickness 0,5 mm. drmax= s3Figure 1 Cylindrical and flanged bush BS ISO 3547-1:20065Table 2 Preferred nominal dimensions for inside diameter, Di, outside diameter, Do, wall thickness, s3, and bush width, B Dimensions in m
27、illimetres s3= 0,5 B DiDos33 4 5 6 8 10 12 2 3 0,5 a a 3 4 0,5 a a a 4 5 0,5 a a a 5 6 0,5 a a a 6 7 0,5 a a a a 8 9 0,5 a a a a 10 11 0,5 a a a s3= 0,75 B DiDos33 4 5 6 7 8 10 2 3,5 0,75 a a 3 4,5 0,75 a a a 4 5,5 0,75 a a a a s3= 1,0 B DiDos33 4 5 6 7 8 10 12 15 20 25 3 5 1,0 a a a a 4 6 1,0 a a a
28、 6 8 1,0 a a a a a 7 9 1,0 a a a a 8 10 1,0 a a a a a a 9 11 1,0 a 10 12 1,0 a a a a a b b 12 14 1,0 a a a a a b b b 13 15 1,0 a b b 14 16 1,0 a a b b b 15 17 1,0 a a b b b 16 18 1,0 a a b b b 17 19 1,0 b b 18 20 1,0 a b b b BS ISO 3547-1:20066 Table 2 (continued) s3= 1,5 mm B DiDos38 10 12 15 20 25
29、 30 40 8 11 1,5 b b 10 13 1,5 a a a a 12 15 1,5 b b b 13 16 1,5 b b b b 14 17 1,5 b b b b 15 18 1,5 a a a a a 16 19 1,5 a a a b a 18 21 1,5 a b b 20 23 1,5 a a b b b 22 25 1,5 a b b b 24 27 1,5 a b b b 25 28 1,5 a b b b 28 31 1,5 b b b s3= 2 mm B DiDos315 20 25 30 40 50 60 70 80 28 32 2,0 a a a b b
30、30 34 2,0 a a a b b 32 36 2,0 a b b 35 39 2,0 a b b b 37 40 2,0 a b b 38 42 2,0 a b b 40 44 2,0 a b b b s3= 2,5 mm B DiDos320 25 30 40 50 60 70 80 100 115 45 50 2,5 a a b b 50 55 2,5 a a a b b b 55 60 2,5 a a b b 60 65 2,5 a a b b c 65 70 2,5 a b c 70 75 2,5 a b c 75 80 2,5 b b c 80 85 2,5 b b c c 8
31、5 90 2,5 b b c c BS ISO 3547-1:20067Table 2 (continued) B DiDos320 25 30 40 50 60 70 80 100 115 90 95 2,5 b b c 95 100 2,5 b c 100 105 2,5 b b c c 105 110 2,5 b c c 110 115 2,5 b c c 115 120 2,5 b b b c 120 125 2,5 b b c 125 130 2,5 b c 130 135 2,5 b c 135 140 2,5 b b c 140 145 2,5 b c 150 155 2,5 b
32、 b c 160 165 2,5 b b c 170 175 2,5 c 180 185 2,5 c 200 205 2,5 c 220 225 2,5 c 250 255 2,5 c 300 305 2,5 c Limit deviations for B: a 0,25 b 0,5 c 0,75 Bush widths B outside the tolerance ranges a, b or c should be agreed between the manufacturer and user and stated after the nominal sizes in the sta
33、ndard designation. If it is necessary to use non-standard widths B, then these should be arranged to have an end figure of 2, 5 and 8 up to Di= 50 mm, and an end figure of 5 over Di= 50 mm. Check bush width B in accordance with ISO 12301. BS ISO 3547-1:20068 Table 3 Preferred nominal dimensions and
34、limit deviations for wrapped flanged bushes Dimensions in millimetres DflB DiDos3nominal limit deviation Sflrmax 4 5,5 7 7,5 8 9 9,5 11,5 12 16 16,5 17 21,5 22 266 8 1 12 1 a a 8 10 1 15 1 a a a 10 12 1 18 1 a a a b 12 14 1 20 1 a a a b 14 16 1 22 1 a b 15 17 1 23 1 a a b 16 18 1 24 1 a b 18 20 1 26
35、 0,50,8+1,05 0,80 1 a b b 20 23 1,5 30 1,5 a a b 25 28 1,5 35 1,6 1,3 1,5 a a b 30 34 2 42 10,8+2 a b 35 39 2 47 2 a b 40 44 2 52 2,1 1,8 2 a b 45 50 2,5 58 20,8+2,6 2,3 2,5 a b Limit deviations for B: a 0,25 b 0,5 Table 4 Outside, Co, and inside, Ci, chamfers Dimensions in millimetres Wall thicknes
36、s Chamfer s3CoCiNominal dimension machined rolled 0,5 0,2 0,1 0,050,300,75 0,5 0,3 0,5 0,3 0,10,41 0,6 0,4 0,6 0,4 0,10,61,5 0,6 0,4 0,6 0,4 0,10,72 1,2 0,4 1,0 0,4 0,10,72,5 1,8 0,6 1,2 0,4 0,21,0For bushes which have to be machined to size in the bush bore, Cishould be made correspondingly bigger.
37、 Comay be machined or rolled at the option of the manufacturer. Cimay be a chamfer or break edge in accordance with ISO 13715. BS ISO 3547-1:20069Table 5 Nominal dimensions and limit deviations for wall thickness, s3Dimensions in millimetres Limit deviations for s3No machining allowance in bush bore
38、 Machining allowance in bush bore Nominal dimension Series A Series B Series D Series C Series E 0,5 00,01500,030 0,75 00,01500,020 0,250,15+ 1 00,0150,0050,020+0,0200,0450,250,15+0,110,07+1,5 00,0150,0050,025+0,0250,0550,250,15+0,110,07+2 00,0150,0050,030+0,0300,0650,250,15+0,110,07+Dou 80 00,0200,
39、0050,040+80 120 00,0300,0350,0850,0400,0850,300,15+0,140,07+Depending on the manufacturing process used, the back of bushes can show isolated slight depressions. The thickness of the walls shall, therefore, be measured at places away from these depressions. Table 6 Series W Limit deviations for insi
40、de diameter, Di, ch, of bush in ring gauge in accordance with ISO 3547-2 Dimensions in millimetres Dinominal Limit deviations for Di, chu 10 0,0360+ 10 u 18 0,0430+ 18 u 30 0,0520+ 30 u 50 0,0620+ 50 u 80 0,0740+ 80 u 120 0,0870+ 120 u 175 0,1000+The concentricity of the inside and outside diameters
41、 of the bush should be 0,05 mm, unless otherwise agreed. BS ISO 3547-1:200610 Table 7 Dimensions and limit deviations for outside diameter, DoDimensions in millimetres Limit deviations for bushes made of Donominal steel, steel/backed material aluminium alloys, copper alloys, aluminium alloy backed m
42、aterial, copper alloy backed material u 10 0,0550,025+0,0750,045+ 10 u 18 0,0650,030+0,0800,050+ 18 u 30 0,0750,035+0,0950,055+ 30 u 50 0,0850,045+0,1100,065+ 50 u 80 0,1000,055+0,1250,075+ 80 u 120 0,1200,070+0,1400,090+ 120 u 180 0,1700,100+0,1900,120+ 180 u 305 0,2550,125+0,2450,145+6 Design In i
43、ts free state, a wrapped bush might not be perfectly cylindrical and its split can be open. After it has been pressed into its housing, in general, a wrapped bush is round and its split is closed. Wrapped bushes can be closed by an interlocked split. The design of the split is left at the discretion
44、 of the manufacturer. Wrapped bushes are supplied with or without a machining allowance in the bore. Bushes supplied with a machining allowance are finish-machined to the desired dimensions by the customer after they have been pressed into their housings. Such bushes cannot be supplied in all materi
45、als. Wrapped bushes which comply with this part of ISO 3547 are supplied in the limit deviations series A to E, as specified in Table 5, and Series W, as specified in Table 6. Lubrication holes, lubrication grooves or lubrication indents should preferably be designed such that they can be stamped or
46、 punched. Distortion caused by the wrapping operation is permissible. All edges and corners shall be free from loose burrs. Burrs which do not affect installation or function are permissible. ISO 3547-2:2006, Test B, does not stipulate any figure for outside diameter, Do. In order to obtain a suffic
47、iently tight fit of the bush in the housing bore when using test B, experimentally determined gauge inside diameters are used. These depend on the method of manufacture and cannot therefore apply in every single case. Specification of a maximum and minimum pressing in force increases the safety of t
48、his test method. The details of test should be agreed for each individual case. The tolerance class of the housing bore diameter is given in Table 8. BS ISO 3547-1:200611Table 8 Tolerance class of the housing bore diameter, DHDimensions in millimetres DiNominal Tolerance class of housing bore DHu 4 H 6 4 u 75 H 7 75 H 7Selection of the tolerance class of the shaft will depend on the material type and application The recommended surface roughness of t
