1、BRITISH STANDARD BS ISO 12240-1:1998 Spherical plain bearings Part 1: Radial spherical plain bearings ICS 21.100.10BS ISO 12240-1:1998 This British Standard, having been prepared under the directionof the Engineering Sector Committee, was publishedunder the authorityofthe Standards Committee andcome
2、s intoeffecton 15November1998 BSI 06-1999 ISBN 0 580 30790 5 National foreword This British Standard reproduces verbatim ISO12240-1:1998 and implements it as the UK national standard. It supersedes BS5983-1:1989, BS5983-2:1982, BS5983-3:1982 and BS5983-4:1982, which are withdrawn. The UK participati
3、on in its preparation was entrusted to Technical Committee MCE/7, Rolling bearings, which has the responsibility to: aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UKinterest
4、s informed; monitor related international and European developments and promulgate them in the UK. A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred
5、 to in this document may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a cont
6、ract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pagesi and ii, theISO title page, pages ii to i
7、v, pages1 to13 and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. Amendments issued since publication Amd. No. Date CommentsBS ISO 12240-1:1998 BSI 06-1999 i Contents
8、 Page National foreword Inside front cover Foreword iii Text of ISO12240-1 1ii blankBSISO 12240-1:1998 ii BSI 06-1999 Contents Page Foreword iii 1 Scope 1 2 Normative references 1 3 Definitions and symbols 1 4 Angles of tilt, 2 5 Dimensions, tolerances and radial internal clearances 2 Figure 1 Radia
9、l spherical plain bearings, dimension seriesE, G, C, K, H 2 Figure 2 Radial spherical plain bearing with relubrication facility and extended inner ring, dimension series W 8 Table 1 Radial spherical plain bearings, dimension series E 3 Table 2 Radial spherical plain bearings, dimension series G 4 Ta
10、ble 3 Radial spherical plain bearings, dimension series C 5 Table 4 Radial spherical plain bearings, dimension series K 6 Table 5 Radial spherical plain bearings, dimension series H 7 Table 6 Radial spherical plain bearings, dimension series W 8 Table 7 Tolerances for inner ring, dimension series E,
11、 G, C, H 9 Table 8 Tolerances for inner ring, dimension series K, W 9 Table 9 Tolerances for outer ring, dimension series E, G, C, W, H 10 Table 10 Tolerances for outer ring, dimension series K 10 Table 11 Radial internal clearance, dimension series E 11 Table 12 Radial internal clearance, dimension
12、 series G 11 Table 13 Radial internal clearance, dimension series C 11 Table 14 Radial internal clearance, dimension series K 12 Table 15 Radial internal clearance, dimension series H 12 Table 16 Radial internal clearance, dimension series W 12 Table 17 Radial internal clearance, dimension series K
13、13BSISO12240-1:1998 BSI 06-1999 iii Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standard bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body in
14、terested 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 Electrotechni
15、cal Commission (IEC) on all matters of electrotechnical standardization. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least75% of the member bodies casting a vote. In
16、ternational Standard ISO12240-1 was prepared by Technical Committee ISO/TC 4, Rolling bearings, Subcommittee SC7, Spherical plain bearings. This first edition cancels and replaces ISO6124-1:1987, ISO6124-2:1982, ISO6124-3:1982 and ISO6125:1982 of which it constitutes a technical revision. ISO12240 c
17、onsists of the following parts, under the general title Spherical plain bearings: Part 1: Radial spherical plain bearings; Part 2: Angular contact radial spherical plain bearings; Part 3: Thrust spherical plain bearings; Part 4: Spherical plain bearing rod ends. Descriptors: Bearings, plain bearings
18、, spherical bearings, radial bearings, form specifications, dimensions, dimensional tolerances, clearances.iv blankBSISO12240-1:1998 BSI 06-1999 1 1 Scope This part of ISO12240 specifies dimension series, tolerances and radial internal clearances for radial spherical plain bearings. The dimensions a
19、nd tolerances specified in this part of ISO12240 have been selected to permit the design of radial spherical plain bearings using a wide choice of sliding material combinations. The specified tolerance values apply to finished, radial spherical plain bearings before any coating, plating, ring splitt
20、ing or ring fracturing. In the case of surface treated radial spherical plain bearings, there may be slight deviations from the specified tolerance values. Radial spherical plain bearings need not conform to the designs illustrated but compliance is required as regards the dimensions, tolerances and
21、 radial internal clearances specified. NOTESpherical plain bearings for airframe applications are not covered by this part of ISO12240. 2 Normative references The following standards contain provisions which, through reference in this text, constitute provisions of this part of ISO12240. At the time
22、 of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this part of ISO12240 are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. Members of IEC and ISO maintain reg
23、isters of currently valid International Standards. ISO582:1995, Rolling bearings Chamfer dimensions Maximum values. ISO1132-1:, Rolling bearings Tolerances Part1: Terms and definitions 1) . ISO6811:1998, Spherical plain bearings Vocabulary. ISO12240-4:1998, Spherical plain bearings Part4: Spherical
24、plain bearing rod ends. 3 Definitions and symbols For the purposes of this part of ISO12240, the definitions given in ISO1132-1 and ISO6811 apply. The symbols (except those for tolerances) shown in the figures and the values given in the tables denote nominal dimensions unless specified otherwise. 1
25、) To be published. (Revision of ISO1132:1980) B Inner ring width C Outer ring width D Outside diameter d Bore diameter d 1 Outside diameter of inner ring face d k Sphere diameter r smin a Smallest single chamfer dimension, inner ring r 1smin a Smallest single chamfer dimension, outer ring V Dmp Vari
26、ation of mean outside diameter V dmp Variation of mean bore diameter V Dp Variation of outside diameter in a single radial plane V dp Variation of bore diameter in a single radial plane Angle of tilt Bs Deviation of a single inner ring width Cs Deviation of a single outer ring width Dmp Deviation of
27、 mean outside diameter in a single plane dmp Deviation of mean bore diameter in a single plane a The corresponding maximum chamfer dimensions are given in Table 1 of ISO582:1985.BS ISO 12240-1:1998 2 BSI 06-1999 4 Angles of tilt, The specified angles of tilt (approximate values) represent the angles
28、 by which the axes of the inner ring and of the outer ring may be inclined in relation to each other without reducing the projected theoretical contact area of the two bearing rings when the two ring axes are parallel to each other. NOTEAttention is drawn to the fact that after mounting a radial sph
29、erical plain bearing on a shaft and into a housing, the angle through which the bearing can tilt may be restricted by the design of the adjacent components. 5 Dimensions, tolerances and radial internal clearances 5.1 Dimensions See Figure 1 and Figure 2, and Table 1 to Table 6. Figure 1 Radial spher
30、ical plain bearings, dimension series E, G, C, K, HBSISO12240-1:1998 BSI 06-1999 3 Table 1 Radial spherical plain bearings, dimension series E d mm D mm B mm C mm d 1 mm d k a mm r s min. mm r 1s min. mm 4 12 5 3 6 8 0,3 0,3 16 5 14 6 4 8 10 0,3 0,3 13 6 14 6 4 8 10 0,3 0,3 13 8 16 8 5 10 13 0,3 0,3
31、 15 10 19 9 6 13 16 0,3 0,3 12 12 22 10 7 15 18 0,3 0,3 10 15 26 12 9 18 22 0,3 0,3 8 17 30 14 10 20 25 0,3 0,3 10 20 35 16 12 24 29 0,3 0,3 9 25 42 20 16 29 35 0,6 0,6 7 30 47 22 18 34 40 0,6 0,6 6 35 55 25 20 39 47 0,6 1 6 40 62 28 22 45 53 0,6 1 7 45 68 32 25 50 60 0,6 1 7 50 75 35 28 55 66 0,6 1
32、 6 55 85 40 32 62 74 0,6 1 7 60 90 44 36 66 80 1 1 6 70 105 49 40 77 92 1 1 6 80 120 55 45 88 105 1 1 6 90 130 60 50 98 115 1 1 5 100 150 70 55 109 130 1 1 7 110 160 70 55 120 140 1 1 6 120 180 85 70 130 160 1 1 6 140 210 90 70 150 180 1 1 7 160 230 105 80 170 200 1 1 8 180 260 105 80 192 225 1,1 1,
33、1 6 200 290 130 100 212 250 1,1 1,1 7 220 320 135 100 238 275 1,1 1,1 8 240 340 140 100 265 300 1,1 1,1 8 260 370 150 110 285 325 1,1 1,1 7 280 400 155 120 310 350 1,1 1,1 6 300 430 165 120 330 375 1,1 1,1 7 a Reference only.BS ISO 12240-1:1998 4 BSI 06-1999 Table 2 Radial spherical plain bearings,
34、dimension series G d mm D mm B mm C mm d 1 mm d k a mm r s min. mm r 1s min. mm 4 14 7 4 7 10 0,3 0,3 20 5 14 7 4 7 10 0,3 0,3 20 6 16 9 5 9 13 0,3 0,3 21 8 19 11 6 11 16 0,3 0,3 21 10 22 12 7 13 18 0,3 0,3 18 12 26 15 9 16 22 0,3 0,3 18 15 30 16 10 19 25 0,3 0,3 16 17 35 20 12 21 29 0,3 0,3 19 20 4
35、2 25 16 24 35 0,3 0,6 17 25 47 28 18 29 40 0,6 0,6 17 30 55 32 20 34 47 0,6 1 17 35 62 35 22 39 53 0,6 1 16 40 68 40 25 44 60 0,6 1 17 45 75 43 28 50 66 0,6 1 15 50 90 56 36 57 80 0,6 1 17 60 105 63 40 67 92 1 1 17 70 120 70 45 77 105 1 1 16 80 130 75 50 87 115 1 1 14 90 150 85 55 98 130 1 1 15 100
36、160 85 55 110 140 1 1 14 110 180 100 70 122 160 1 1 12 120 210 115 70 132 180 1 1 16 140 230 130 80 151 200 1 1 16 160 260 135 80 176 225 1 1,1 16 180 290 155 100 196 250 1,1 1,1 14 200 320 165 100 220 275 1,1 1,1 15 220 340 175 100 243 300 1,1 1,1 16 240 370 190 110 263 325 1,1 1,1 15 260 400 205 1
37、20 283 350 1,1 1,1 15 280 430 210 120 310 375 1,1 1,1 15 a Reference only.BSISO12240-1:1998 BSI 06-1999 5 Table 3 Radial spherical plain bearings, dimension series C d mm D mm B mm C mm d 1 mm d k a mm r s min. mm r 1s min. mm 320 440 160 135 340 375 1,1 3 4 340 460 160 135 360 390 1,1 3 3 360 480 1
38、60 135 380 410 1,1 3 3 380 520 190 160 400 440 1,5 4 4 400 540 190 160 425 465 1,5 4 3 420 560 190 160 445 480 1,5 4 3 440 600 218 185 465 515 1,5 4 3 460 620 218 185 485 530 1,5 4 3 480 650 230 195 510 560 2 5 3 500 670 230 195 530 580 2 5 3 530 710 243 205 560 610 2 5 3 560 750 258 215 590 645 2 5
39、 4 600 800 272 230 635 690 2 5 3 630 850 300 260 665 730 3 6 3 670 900 308 260 710 770 3 6 3 710 950 325 275 755 820 3 6 3 750 1 000 335 280 800 870 3 6 3 800 1 060 355 300 850 915 3 6 3 850 1 120 365 310 905 975 3 6 3 900 1 180 375 320 960 1 030 3 6 3 950 1 250 400 340 1 015 1 090 4 7,5 3 1 000 1 3
40、20 438 370 1 065 1 150 4 7,5 3 1 060 1 400 462 390 1 130 1 220 4 7,5 3 1 120 1 460 462 390 1 195 1 280 4 7,5 3 1 180 1 540 488 410 1 260 1 350 4 7,5 3 1 250 1 630 515 435 1 330 1 425 4 7,5 3 1 320 1 720 545 460 1 405 1 510 4 7,5 3 1 400 1 820 585 495 1 485 1 600 5 9,5 3 1 500 1 950 625 530 1 590 1 7
41、10 5 9,5 3 1 600 2 060 670 565 1 690 1 820 5 9,5 3 1 700 2 180 710 600 1 790 1 925 5 9,5 3 1 800 2 300 750 635 1 890 2 035 6 12 3 1 900 2 430 790 670 2 000 2 150 6 12 3 2 000 2 570 835 705 2 100 2 260 6 12 3 a Reference only.BS ISO 12240-1:1998 6 BSI 06-1999 Table 4 Radial spherical plain bearings,
42、dimension series K d mm D mm B mm C mm d 1 mm d k a mm r s min. mm r 1s min. mm 3 10 6 4,5 5,1 7,9 0,2 0,2 14 5 13 8 6 7,7 11,1 0,3 0,3 13 6 16 9 6,75 8,9 12,7 0,3 0,3 13 8 19 12 9 10,3 15,8 0,3 0,3 14 10 22 14 10,5 12,9 19 0,3 0,3 13 12 26 16 12 15,4 22,2 0,3 0,3 13 14 29 19 13,5 16,8 25,4 0,3 0,3
43、16 16 32 21 15 19,3 28,5 0,3 0,3 15 18 35 23 16,5 21,8 31,7 0,3 0,3 15 20 40 25 18 24,3 34,9 0,3 0,6 14 22 42 28 20 25,8 38,1 0,3 0,6 15 25 47 31 22 29,5 42,8 0,3 0,6 15 30 55 37 25 34,8 50,8 0,3 0,6 17 35 65 43 30 40,3 59 0,6 1 16 40 72 49 35 44,2 66 0,6 1 16 50 90 60 45 55,8 82 0,6 1 14 NOTEBearin
44、gs of this series are incorporated in spherical plain bearing rod ends according to ISO12240-4:1998, Table 5. a Reference only.BSISO12240-1:1998 BSI 06-1999 7 Table 5 Radial spherical plain bearings, dimension series H d mm D mm B mm C mm d 1 mm d k a mm r s min. mm r 1s min. mm 100 150 71 67 114 13
45、5 1 1 2 110 160 78 74 122 145 1 1 2 120 180 85 80 135 160 1 1 2 140 210 100 95 155 185 1 1 2 160 230 115 109 175 210 1 1 2 180 260 128 122 203 240 1,1 1,1 2 200 290 140 134 219 260 1,1 1,1 2 220 320 155 148 245 290 1,1 1,1 2 240 340 170 162 259 310 1,1 1,1 2 260 370 185 175 285 340 1,1 1,1 2 280 400
46、 200 190 311 370 1,1 1,1 2 300 430 212 200 327 390 1,1 1,1 2 320 460 230 218 344 414 1,1 3 2 340 480 243 230 359 434 1,1 3 2 360 520 258 243 397 474 1,1 4 2 380 540 272 258 412 494 1,5 4 2 400 580 280 265 431 514 1,5 4 2 420 600 300 280 441 534 1,5 4 2 440 630 315 300 479 574 1,5 4 2 460 650 325 308
47、 496 593 1,5 5 2 480 680 340 320 522 623 2 5 2 500 710 355 335 536 643 2 5 2 530 750 375 355 558 673 2 5 2 560 800 400 380 602 723 2 5 2 600 850 425 400 645 773 2 6 2 630 900 450 425 677 813 3 6 2 670 950 475 450 719 862 3 6 2 710 1 000 500 475 762 912 3 6 2 750 1 060 530 500 814 972 3 6 2 800 1 120
48、 565 530 851 1 022 3 6 2 850 1 220 600 565 936 1 112 3 7,5 2 900 1 250 635 600 949 1 142 3 7,5 2 950 1 360 670 635 1 045 1 242 4 7,5 2 1 000 1 450 710 670 1 103 1 312 4 7,5 2 a Reference only.BS ISO 12240-1:1998 8 BSI 06-1999 Table 6 Radial spherical plain bearings, dimension series W Figure 2 Radia
49、l spherical plain bearing with relubrication facility and extendedinnerring,dimension seriesW d mm D mm B mm C mm d 1 mm d k a mm r s min. mm r 1s min. mm 12 b 22 12 7 15,5 18 0,3 0,3 4 16 28 16 9 20 23 0,3 0,3 4 20 35 20 12 25 29 0,3 0,3 4 25 42 25 16 30,5 35 0,6 0,6 4 32 52 32 18 38 44 0,6 1 4 40 62 40 22 46 53 0,6 1 4 50 75 50 28 57 66 0,6 1 4 63 95 63 36 71,5 83 1 1 4 80 120 80 45 91 105 1 1 4 100 150 100 55 113 130 1 1 4 125
