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1、BRITISH STANDARD BS 6101-6: 1990 Machine tool ball screws Part 6: Specification for ball nuts and principal dimensions of ball screws Licensed Copy: sheffieldun sheffieldun, na, Tue Dec 05 05:57:37 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 6101-6:1990 This British Standard, having been prepared
2、under the direction of the Machine, Engineers and Hand Tools Standards Policy Committee, was published under the authority of the Board of BSI and comes into effect on 30 November 1990 BSI 11-1999 The following BSI references relate to the work on this standard: Committee reference MTE/1 Draft for c
3、omment 88/78339 DC ISBN 0 580 18332 7 Committees responsible for this British Standard The preparation of this British Standard was entrusted by the Machine, Engineers and Hand Tools Standards Policy Committee (MTE/-) to Technical Committee MTE/1 upon which the following bodies were represented: Adv
4、anced Manufacturing Technology Research Institute Cranfield Institute of Technology Department of Trade and Industry Mechanical Engineering and Manufacturing Technology Division (Mmt) Federation of British Engineers Tool Manufacturers Health and Safety Executive Ministry of Defence Society of Britis
5、h Aerospace Companies Ltd. Amendments issued since publication Amd. No.Date of issueComments Licensed Copy: sheffieldun sheffieldun, na, Tue Dec 05 05:57:37 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 6101-6:1990 BSI 11-1999i Contents Page Committees responsibleInside front cover Forewordii 1Scope
6、1 2Definitions1 3General1 4Marking1 Appendix A Ordering instructions for ball screws8 Figure 1 Double ball nut (preloaded) with internal return system and end flange2 Figure 2 Double ball nut (preloaded) with external return system and end flange4 Figure 3 Single ball nut (preloaded) with internal r
7、eturn system and end flange, and ball screw6 Table 1 Dimensions of double ball nut (preloaded) with internal return system and end flange3 Table 2 Load and life ratings for double ball nut (preloaded) with internal return system and end flange3 Table 3 Dimensions of double ball nut (preloaded) with
8、external return system and end flange5 Table 4 Load and life ratings for double ball nut (preloaded) with external return system and end flange5 Table 5 Dimensions of single ball nut (preloaded) with internal return system and end flange, and ball screw7 Table 6 Load and life ratings for single ball
9、 nut (preloaded) with internal return system and end flange7 Publications referred toInside back cover Licensed Copy: sheffieldun sheffieldun, na, Tue Dec 05 05:57:37 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 6101-6:1990 ii BSI 11-1999 Foreword This Part of BS 6101 has been prepared under the di
10、rection of the Machine, Engineers and Hand Tools Standards Policy Committee. It has been produced in advance of related work being prepared by the International Organization for Standardization (ISO) in order to facilitate discussion between manufacturers and purchasers of machine tool ball screws.
11、There are many types of ball nut. However, this standard only includes the most popularly used types and sizes. Other types and sizes can be added if a demand becomes apparent. A selected range of load and life ratings is also included. Principal dimensions are given for a range of ball screws havin
12、g single ball nuts. This range is not intended to be exhaustive but reflects a popular range currently in use in the UK market. 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. Complia
13、nce 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, pages i and ii, pages 1 to 8, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have
14、had amendments incorporated. This will be indicated in the amendment table on the inside front cover. Licensed Copy: sheffieldun sheffieldun, na, Tue Dec 05 05:57:37 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 6101-6:1990 BSI 11-19991 1 Scope This Part of BS 6101 specifies principal dimensions and
15、 load and life ratings for ball nuts for use in machine tool ball screws and principal dimensions of a selected range of ball screws. This Part of BS 6101 applies to ball nuts with both internal and external return systems. Marking requirements are given. Ordering instructions for ball screws are gi
16、ven in Appendix A. NOTEThe titles of the publications referred to in this standard are listed on the inside back cover. 2 Definitions For the purposes of this Part of BS 6101, the definitions given in BS 6101-3 apply. 3 General 3.1 Nominal diameters and nominal leads Nominal diameters and nominal le
17、ads shall be selected from BS 6101-5. 3.2 Dimensions Dimensions shall be as given in Table 1, Table 3 and Table 5. 3.3 Load and life ratings Load and life ratings shall be as given in Table 2, Table 4 and Table 6. 4 Marking Ball nuts shall be marked with the following: a) the number and date of this
18、 British Standard, i.e. BS 6101-6:19901); b) the name or trademark of the manufacturer; c) the manufacturers serial number or part number; d) the ball size; e) the pitch and lead. 1) Marking BS 6101-6:1990 on or in relation to a product represents a manufacturers declaration of conformity, i.e. a cl
19、aim by or on behalf of the manufacturer that the product meets the requirements of the standard. The accuracy of the claim is therefore solely the responsibility of the person making the claim. Such a declaration is not to be confused with third party certification of conformity, which may also be d
20、esirable. Licensed Copy: sheffieldun sheffieldun, na, Tue Dec 05 05:57:37 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 6101-6:1990 2 BSI 11-1999 NOTENuts fitted with wiper seals at each end Figure 1 Double ball nut (preloaded) with internal return system and end flange Licensed Copy: sheffieldun sh
21、effieldun, na, Tue Dec 05 05:57:37 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 6101-6:1990 BSI 11-19993 Table 1 Dimensions of double ball nut (preloaded) with internal return system and end flange (see Figure 1) Table 2 Load and life ratings for double ball nut (preloaded) with internal return sys
22、tem and end flange (see Figure 1) Size Ball diameter Screw root diameter Number of circuits Spigot diameter d1 tolerance g6 Spigot length l2 Outside diameter d2 P.C.D d3 Thickness l3 Fixing bolt size d4 Nominal diameter of ball screw Lead 34 l1 mmmmmmmmmmmmmmmmmm 2553.17521.8901074010655015M6 103.96
23、821.01501704710756015M6 3253.17528.8901074810756115M8 106.3525.61501705515907015M8 4053.17536.8901075515907015M8 106.3533.615017060151008015M8 5053.17546.89511270151058520M10 106.3543.615517575151109020M10 6353.17559.8100117801512210020M10 106.3556.6155175851513511020M10 209.52553.426530595201551252
24、0M12 80106.3573.61601801052015513025M12 209.52570.42703101152017514525M12 100106.3593.61601801252017515025M12 209.52590.42703101432521817825M16 a See BS 4500-1 SizeDynamic load (daN) for life of 1 106 rev Static load (daN) Nominal diameter of ball screw Lead Number of circuitsNumber of circuits 3434
25、 mmmm 2551 2101 5502 7123 473 101 4101 8062 8243 617 3251 4151 8133 6164 631 102 9943 8356 1997 939 4051 3241 6193 7914 637 103 5944 6028 26510 585 5051 4961 8304 8755 962 104 2155 39810 84813 893 6351 6832 0586 2837 684 104 0454 94811 69914 309 207 4289 51318 59623 816 80104 6115 63915 16518 549 20
26、8 67311 10824 40831 259 100105 2106 37219 49823 848 2010 15713 00832 54441 678 NOTE 1The values in the table are based on: conformity factor 51.5 %, contact angle 40; ia= i0.86 (see BS 6101-1). NOTE 2Preload is adjustable for this type of nut and therefore is not specified. Licensed Copy: sheffieldu
27、n sheffieldun, na, Tue Dec 05 05:57:37 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 6101-6:1990 4 BSI 11-1999 NOTENuts fitted with wiper seals at each end Figure 2 Double ball nut (preloaded) with external return system and end flange Licensed Copy: sheffieldun sheffieldun, na, Tue Dec 05 05:57:37
28、GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 6101-6:1990 BSI 11-19995 Table 3 Dimensions of double ball nut (preloaded) with external return system and end flange (see Figure 2) Table 4 Load and life ratings for double ball nut (preloaded) with external return system and end flange (see Figure 2) S
29、ize Ball diameter Screw root diameter Nut body length Spigot diameter d1 tolerance g6c Spigot length Outside diameter P.C.DThickness Fixing bolt size d4 Nominal diameter of ball screw Lead2 2.5a2 3.5b l2d2d3l3 l1 mmmmmmmmmmmmmmmmmmmmmm 2553.17521.81101305210756218M6 103.96921.01822225810907418M6 325
30、3.17528.81141346010907418M8 106.3525.618421475101189518M8 4053.17536.811413470101008418M8 106.3533.6194234861012510418M8 5053.17546.812414480101159620M10 106.3543.6194234951013511520M10 6353.17559.81261001014212020M10 106.3556.61942341122015013020M10 209.52553.43424221242016514420M12 80106.3573.6194
31、2341302017015020M12 209.52570.43424221402018516025M12 100106.3593.61941502019016825M12 209.52590.43424221652022019025M16 a 2 ball return tubes and 2“ turns of balls in each circuit b 2 ball return tubes and 3“ turns of balls in each circuit c See BS 4500-1 SizeDynamic load (daN) for life of 1 106 re
32、vs Static load (daN) Nominal diameter of ball screw Lead 2 2“2 3“2 2“2 3“ mmmm 2552 4203 2325 5117 360 103 1984 2786 8899 201 3252 7453 6677 0549 421 106 5138 69814 10818 842 4053 0554 0808 81711 776 107 4519 95117 63423 552 5053 33710 001 108 42811 25622 04329 440 6353 70213 667 109 38612 53527 333
33、36 506 2015 89521 22941 66155 642 801010 63914 20935 26947 104 2017 78523 75451 58168 890 1001011 62043 204 2020 10126 84665 46887 438 NOTE 1The above values are based on: conformity factor 51.5 %; contact angle 45; ia= i0.86 (see BS 6101-1). NOTE 2Preload is adjustable for this type of nut and ther
34、efore is not specified. Licensed Copy: sheffieldun sheffieldun, na, Tue Dec 05 05:57:37 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 6101-6:1990 6 BSI 11-1999 Figure 3 Single ball nut (preloaded) with internal return system and end flange, and ball screw Licensed Copy: sheffieldun sheffieldun, na,
35、Tue Dec 05 05:57:37 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 6101-6:1990 BSI 11-19997 Table 5 Dimensions of single ball nut (preloaded) with internal return system and end flange, and ball screw (see Figure 3) Table 6 Load and life ratings for single ball nut (preloaded) with internal return sy
36、stem and end flange (see Figure 3) Size No. of circuits Ball diameters ScrewshaftBall nutFlange Nominal diameter of ball screwLead Fixing bolt size ls1ls2ds1ds2l1l2l3d1d2d3d4 mmmmmmmmmmmmmmmmmmmmmmmmmm 16532.381255001001614.3491015325643M5 25533.1755001502522.8511015406550M6 1 000 1 250 251033.96875
37、 1 000 1502522.3701015477560M6 1 250 32543.175 1 000 1503229.7821015487561M8 1 500 321044.7625 1 000 2003228.71401515559070M8 1 500 40543.1751 950 2004037.8821515559070M8 401046.351 950 2004035.814015156010080M8 50543.1751 950 2505047.88515207011090M10 501046.351 950 2505045.814015207511595M10 Size
38、Dynamic load for life of 1 106 rev Static load Nominal diameter of ball screw Lead mmmmdaNdaN See note 1 165497851 2559721 960 25101 1552 088 3251 8464 796 See note 2 32102 8296 326 4051 6424 770 40103 8239 009 5051 8506 095 50105 53814 554 NOTE 1These values are based on: conformity factor 54 %; co
39、ntact angle 45; ia= i0.86 (see BS 6101-1). NOTE 2These values are based on: conformity factor 51.5 %; contact angle 40; ia= i0.86 (see BS 6101-1). NOTE 3Preload is not adjustable for this type of nut. Licensed Copy: sheffieldun sheffieldun, na, Tue Dec 05 05:57:37 GMT+00:00 2006, Uncontrolled Copy,
40、(c) BSI BS 6101-6:1990 8 BSI 11-1999 Appendix A Ordering instructions for ball screws Licensed Copy: sheffieldun sheffieldun, na, Tue Dec 05 05:57:37 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 6101-6:1990 BSI 11-1999 Publications referred to BS 4500, ISO limits and fits. BS 4500-1, General, toler
41、ances and deviations. BS 6101, Machine tool ball screws. BS 6101-1, Methods of calculating dynamic and static load and life ratings. BS 6101-3, Glossary of terms. BS 6101-5, Specification for nominal diameters and nominal leads. Licensed Copy: sheffieldun sheffieldun, na, Tue Dec 05 05:57:37 GMT+00:
42、00 2006, Uncontrolled Copy, (c) BSI BS 6101-6: 1990 BSI 389 Chiswick High Road London W4 4AL BSI British Standards Institution BSI is the independent national body responsible for preparing British Standards. It presents the UK view on standards in Europe and at the international level. It is incorp
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