1、BRITISH STANDARD BS 4481-2: 1983 Bonded abrasive products Part 2: Specification for dimensions of grinding wheels and segments UDC 621.922.025BS4481-2:1983 This British Standard, having been prepared under the directionof the Mechanical Engineering Standards Committee, was published underthe authori
2、ty of the Board ofBSI and comes into effect on 30September1983 BSI 02-2000 First published March 1972 First revision November 1976 Second revision September 1983 The following BSI references relate to the work on this standard: Committee reference MEE/101 Draft for comment 82/77972 DC ISBN 0 580 133
3、78 8 Committees responsible for this British Standard The preparation of this British Standard was entrusted by the Mechanical Engineering Standards Committee (MEE/-) to Technical Committee MEE/101 upon which the following bodies were represented: Abrasive Industries Association British Compressed A
4、ir Society Engineering Equipment and Materials Users Association Gauge and Tool Makers Association Health and Safety Executive Machine Tool Industry Research Association Screw Thread Tool Manufacturers Association Trades Union Congress Amendments issued since publication Amd. No. Date of issue Comme
5、ntsBS4481-2:1983 BSI 02-2000 i Contents Page Committees responsible Inside front cover Foreword iii 1 Scope 1 2 Dimensions 1 Appendix A Recommended drillings for inserted nut discs 34 Figure 1 Plain grinding wheel for fettling and general sharpening 1 Figure 2 Cup grinding wheels for portable machin
6、es 3 Figure 3 Taper cup grinding wheels 4 Figure 4 Grinding wheel for cutting off, without reinforcement 5 Figure 5 Grinding wheel for external cylindrical grinding 6 Figure 6 Grinding wheel with one recess 7 Figure 7 Grinding wheel with two recesses 8 Figure 8 Plain wheel for surface grinding 9 Fig
7、ure 9 Cylinder wheel for surface grinding 9 Figure 10 Cylinder wheel for surface grinding with inserted nuts 10 Figure 11 Plain wheel for centreless grinding 11 Figure 12 Wheel with one recess for centreless grinding 12 Figure 13 Wheel with two recesses for centreless grinding 12 Figure 14 Plain con
8、trol wheel for centreless grinding 13 Figure 15 Control wheel with one recess for centreless grinding 14 Figure 16 Control wheel with two recesses for centreless grinding 15 Figure 17 Plain grinding wheel for saw sharpening 16 Figure 18 Plain wheel for tool and cutter grinding 17 Figure 19 Straight
9、cup wheel for tool and cutter grinding 17 Figure 20 Taper cup wheel for tool and cutter grinding 18 Figure 21 Dish wheel for tool and cutter grinding 19 Figure 22 Plain internal grinding wheel 20 Figure 23 Internal grinding wheel with one recess 21 Figure 24 Cutting off wheel with reinforcement 22 F
10、igure 25 Depressed centre wheel with reinforcement 23 Figure 26 Double cup grinding wheel for offhand tool grinding 23 Figure 27 Plain or honeycomb faced disc 24 Figure 28 Precision thread grinding wheel 24 Figure 29 Segment with isosceles trapezoidal section 25 Figure 30 Inserted nut disc 25 Figure
11、 31 Cone grinding wheel, type 16 26 Figure 32 Cone grinding wheel, type 17 26 Figure 33 Plug, type 18 27 Figure 34 Plug, type 18R 27 Figure 35 Plug, type 19 28 Figure 36 Mounted wheels, type A, with mandrel diameter 6.3 mm 29 Figure 37 Mounted wheels, type B, with mandrel diameter 3.15 mm 30 Figure
12、38 Mounted wheel, type W 31 Figure 39 Oilstones 33 Figure 40 Block, type 90 33 Figure 41 Drillings for inserted nut discs with diameter 300 mm 34 Figure 42 Drillings for inserted nut discs with diameter 356 mm 34 Figure 43 Drillings for inserted nut discs with diameter 406 mm 35BS4481-2:1983 ii BSI
13、02-2000 Page Figure 44 Drillings for inserted nut discs with diameter 457 mm 35 Figure 45 Drillings for inserted nut discs with diameter 508 mm 36 Figure 46 Drillings for inserted nut discs with diameter 610 mm 37 Figure 47 Drillings for inserted nut discs with diameter 762 mm 38 Figure 48 Drillings
14、 for inserted nut discs with diameter 914 mm 39 Figure 49 Drillings for inserted nut discs with diameter 1067 mm 40 Table 1 Type 1, plain grinding wheels for fettling and general sharpening 1 Table 2 Types 6 and 11, cup grinding wheels for portable machines 3 Table 3 Type 1, grinding wheels for cutt
15、ing off, without reinforcement 5 Table 4 Types 1,5 and 7, grinding wheels for external cylindrical grinding 6 Table 5 Types 1,2 and 37, surface grinding wheels 9 Table 6 Types 1,5 and 7, centreless grinding wheels and control wheels 11 Table 7 Type 1, plain grinding wheels for saw sharpening 16 Tabl
16、e 8 Types 1,6, 11 and 12, grinding wheels for tool and cutter grinding 17 Table 9 Types 1 and 5, internal grinding wheels 20 Table 10 Type 1, cutting off wheels with reinforcement 22 Table 11 Type 27, depressed centre wheels with reinforcement 23 Table 12 Type 9, double cup grinding wheels for offha
17、nd tool grinding 23 Table 13 Type 35, plain or honeycomb faced discs 24 Table 14 Type 1, precision thread grinding wheels 24 Table 15 Type 31, segments with isoceles trapezoidal section 25 Table 16 Type 36, inserted nut discs 25 Table 17 Types 16, 17, 18 and 19, cones and plugs 26 Table 18 Type 52,
18、mounted wheels 29 Table 19 Type 90, hand finishing sticks and oilstones 32 Table 20 Type 90, blocks 33 Publications referred to Inside back coverBS 4481-2:1983 BSI 02-2000 iii Foreword This Part of BS4481 has been prepared under the direction of the Mechanical Engineering Standards Committee. It was
19、 first published in1972 and revised in1976 to take account of the work then completed in the International Organization for Standardization (ISO) and the Federation of European Producers of Abrasive Products (FEPA). This second revision has been prepared in order to take account of the latest work i
20、n ISO although that work has not yet proceeded to publication, and to take account of the revision of Part1 of the standard. BS4481-2:1976 is withdrawn. Part1 of this British Standard relates to general features for grinding wheels, segments and blocks, and covers designation, profiles, ranges of di
21、mensions and tolerances. In particular, Part1 contains information on tolerances for hole sizes and recommended current segment sizes, type31, which were included in Appendices A and D of the1976 edition of Part2. The dimensions of cylinder grinding wheels with inserted nuts, type2, which were shown
22、 inAppendix C to the1976 edition of this Part, have been moved toTable 5(c) in this Part. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not o
23、f itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i to iv, pages1to 40, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will b
24、e indicated in the amendment table on the inside front cover.iv blankBS4481-2:1983 BSI 02-2000 1 1 Scope This Part of BS4481 specifies dimensions for basic shapes and sizes of grinding wheels and segments, classified in accordance with their intended use. NOTEThe titles of the publications referred
25、to in this Part of this British Standard are listed on the inside back cover. 2 Dimensions The dimensions of grinding wheels shall be as specified inTable 1 to Table 14 inclusive. The dimensions of segments of grinding wheels with isosceles trapezoidal section shall be as specified inTable 15. The d
26、imensions of inserted nut discs shall be as specified inTable 16. The dimensions of cones and plugs shall be as specified inTable 17. The dimensions of mounted wheels shall be as specified inTable 18 The dimensions of hand finishing sticks and oilstones shall be as specified inTable 19. The dimensio
27、ns of blocks shall be as specified inTable 20. NOTEIn many of the tables a number of dimensions are described as “transitional” and are shown in parentheses. These are metric equivalents of inch dimensions that were used prior to metrication; they are only for use with grinding machines that can acc
28、ept only those dimensions and they are not recommended for new designs. Transitional screw threads are similarly shown inTable 5(c) andTable 16. Table 1 Type 1, plain grinding wheels for fettling and general sharpening (see Figure 1) Figure 1 Plain grinding wheel for fettling and general sharpening
29、Table 1(a) Non-precision grinding machines for general use All dimensions are in millimetres. Diameter of wheel Thickness Hold diameter D E d 80 6 10 13 13 (12.7) 100 10 13 20 25 16 (12.7) (15.88) 125 13 20 25 20 (12.7) (19.05) 150 13 16 20 25 20 (12.7) (19.05) 200 20 25 20 (15.88) (19.05) 250 20 25
30、 32 (19.05) (31.75) 300 25 40 50 32 (31.75) 356 40 50 32 (31.75) 406 40 50 63 40 (38.1) NOTEThe hole diameters in parentheses are transitional.BS4481-2:1983 2 BSI 02-2000 Table 1(b) Portable grinding machines All dimensions are in millimetres. Diameter of wheel Thickness Hold diameter D E d 50 6 13
31、20 10 (6.35) (9.53) 63 13 10 (9.53) 80 6 10 13 20 10 (9.53) (12.7) (15.88) 100 6 13 20 25 13 (12.17) (15.88) 125 20 25 16 (15.88) 150 13 20 25 16 (12.7) (15.88) 200 25 16 (15.88) NOTEThe hole diameters in parentheses are transitional. Table 1(c) Floorstand or swing frame grinding machines All dimens
32、ions are in millimetres. Diameter of wheel Thickness Hold diameter D E d 356 50 127.0 (152.4) 406 50 63 457 63 152.4 508 50 63 80 (76.2) 152.4 (177.8) (203.2) (254) 610 50 63 80 (76.2) 304.8 (177.8) (203.2) 762 50 63 80 (72.2) 100 304.8 (254) NOTEThe dimensions in parentheses are transitional.BS4481
33、-2:1983 BSI 02-2000 3 Table 2 Types 6 and 11, cup grinding wheels for portable machines Figure 2 Cup grinding wheels for portable machines Table 2(a) Type 6, straight cup grinding wheels (see Figure 2(a) and Figure 2(b) All dimensions are in millimetres. Diameter of wheel D Thickness overall E Thick
34、ness of side wall B Thickness through back E 1 Hole Plain hole diameter d seeFigure 2(a) Threaded hole seeFigure 2(b) 100 20 125 50 25 20 (22.23) a * in-11UNC-2B 150 25 40 NOTEWheels with threaded holes are preferred; wheels with plain holes (diameter in parentheses) are transitional. a See 4.5 of B
35、S4481-1:1981.BS4481-2:1983 4 BSI 02-2000 Figure 3 Taper cup grinding wheels Table 2(b) Type 11, taper cup grinding wheels seeFigure 3(a) and Figure 3(b) All dimensions are in millimetres. Diameter of wheel D Thickness overall E Thickness of side wall B Thickness through back E 1 Diameter of back D 1
36、 Inside diameter of flat K Hole Plain hole diameter d seeFigure 3(a) Threaded hole seeFigure 3(b) 100 20 80 45 125 50 25 20 100 54 (22.23) a * in-11UNC-2B 150 25 120 70 40 54 NOTEWheels with threaded holes are preferred; wheels with plain holes (diameter in parentheses) are transitional. a See 4.5 o
37、f BS4481-1:1981.BS4481-2:1983 BSI 02-2000 5 Table 3 Type 1, grinding wheels for cutting off, without reinforcement (seeFigure 4) Figure 4 Grinding wheel for cutting off, without reinforcement All dimensions are in millimetres. Diameter of wheel Thickness Hole diameter D E d 100 1.6 20 (12.7) (19.05)
38、 150 1.6 20 (12.7) (19.05) (31.75) 2.5 180 1.6 2.5 200 1.6 20 (19.05) (31.75) 2.5 250 2.5 25 (19.05) (25.4) 3.2 300 2.5 25 (25.4) 3.2 406 3.2 32 508 4 610 5 NOTEThe hole diameters in parentheses are transitional.BS4481-2:1983 6 BSI 02-2000 Table 4 Types 1, 5 and 7, grinding wheels for external cylin
39、drical grinding Figure 5 Grinding wheel for external cylindrical grinding Table 4(a) Type 1, plain grinding wheels for general use (seeFigure 5) All dimensions are in millimetres. Diameter of wheel Thickness Hole diameter D E d 250 20 25 300 20 25 32 40 50 127 356 25 32 40 50 406 25 40 50 457 25 40
40、50 63 203.2 (254) 508 25 40 50 63 80 (76.2) 304.8 (203.2) (254) 610 32 50 63 80 (76.2) 100 304.8 (203.2) 762 50 63 80 (76.2) 100 914 63 80 (76.2) 100 304.8 NOTE 1Cylindrical grinding wheels with diameters smaller than250mm are included inTable 5(a). NOTE 2The dimensions in parentheses are transition
41、al. Table 4(b) Type 1, plain grinding wheels for camshaft grinding (seeFigure 5) All dimensions are in millimetres. Diameter of wheel Thickness Hole diameter D E d 508 to be specified by user 203.2 (254) (304.8) 610 304.8 (457.2) 762 NOTEThe hole diameters in parentheses are transitional. Table 4(c)
42、 Type 1, plain grinding wheels for crankshaft grinding (seeFigure 5) Diameter of wheel Thickness Hole diameter D E d 660 to be specified by user 304.8 762 914 1067 1100BS4481-2:1983 BSI 02-2000 7 Figure 6 Grinding wheel with one recess Table 4(d) Type 5, grinding wheels with one recess (seeFigure 6)
43、 All dimensions are in millimetres. Diameter of wheel Thickness Hole diameter Diameter of recess Depth of recess D E d R F 180 20 32 (31.75) 105 6 25 13 200 25 16 (15.88) 6 32 (31.75) 13 250 40 76.2 130 300 40 127 50 190 13 356 40 50 406 40 215 50 508 50 304.8 390 13 63 304.8 (203.2) 390 (290) 80 (7
44、6.2) 25 610 63 13 80 (76.2) 100 304.8 390 25 660 80 (76.2) 20 762 80 (76.2) 25 NOTEThe dimensions in parentheses are transitional.BS4481-2:1983 8 BSI 02-2000 Figure 7 Grinding wheel with two recesses Table 4(e) Type 7, grinding wheels with two recesses (seeFigure 7) All dimensions are in millimetres
45、. Diameter of wheel D Thickness E Diameter of hole d Diameter of recess R Depth of recess F = G 250 40 76.2 130 6 50 13 300 40 127 190 6 50 127 (76.2) 190 (135) 13 (10) 63 127 190 16 40 6 356 50 13 100 20 406 50 127 (203.2) 215 (290) 13 80 (76.2) 20 457 50 203.2 290 13 63 80 (76 2) 508 50 63 80 (76.
46、2) 610 50 304.8 63 80(76.2) 300 20 100 25 762 80 (76.2) 13 100 450 914 100 NOTEThe dimensions in parentheses are transitional.BS4481-2:1983 BSI 02-2000 9 Table 5 Types 1,2 and 37, surface grinding wheels Figure 8 Plain wheel for surface grinding Table 5(a) Type 1, plain grinding wheels (seeFigure 8)
47、 All dimensions are in millimetres. Diameter of wheel Thickness Hole diameter D E d 150 10 13 16 20 32 (31.75) 180 6 10 13 16 20 200 13 20 25 32 (31.75) (50.8) 250 13 20 25 32 76.2 (50.8) 300 20 25 32 40 50 127 NOTE 1Surface grinding wheels with diameters greater than300mm are included inTable 4(a).
48、 NOTE 2The hole diameters in parentheses are transitional. Figure 9 Cylinder wheel for surface grinding Table 5(b) Type 2, cylinder grinding wheels (seeFigure 9) All dimensions are in millimetres. Diameter of wheel D Thickness E Wall thickness B 125 50 13 150 250 100 25 300 32 356 125 40 406 50 457
49、40 (38) 457 100 508 40 (38) NOTEThe wall thickness38mm is transitional.BS4481-2:1983 10 BSI 02-2000 Figure 10 Cylinder wheel for surface grinding with inserted nuts Table 5(c) Type 37, cylinder grinding wheels with inserted nuts (seeFigure 10) All dimensions are in millimetres. Diameter of wheel D Thickness E Wall thickness B Thread No. of nuts P.C.D 250 125 25
