Parallel and Taper Keys Users of British Standards should make sure that they possess the latest amendments or editions. Service Bespoke components Specification support Registration walk through Consaltation. You may find similar items within these categories by selecting from the choices below:. In cases such as stepped shafts when larger diameters are required, for example to resist bending, and when fans, gears and impellers are fitted with a smaller key than normal, an unequal disposition of key in shaft with relation to the hub results.
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Daikora You may experience issues viewing this site in Internet Explorer 9, 10 or Please fill this form, we will try to respond as soon as possible. Standard Number BS The Government department and scientific and industrial organizations marked with an asterisk be the above list, together with the following, were directly represented on the committee entrusted with the preparation of this British Standard: So please help us by uploading 1 new document or like us to download:.
For the benefit of designers who are concerned with high static or dynamic torque loadings bs keyed shafting systems, the reports are: The dimensions and tolerances above and inTable 8 have been determined so that this is possible in all cases. So please help us by uploading 1 new document or like us to download: The values in bold type are those which correspond most nearly with the preferred lengths given inTables 9 and pat of BS This British Standard is the first of a series for metric keys and keyways and has been prepared under the authority of the Mechanical Engineering Industry Standards Committee.
The use of larger key sections which are special to any particular application is outside the scope of this standard. Bespoke components Specification support Registration walk through Consaltation.
Take the smart route to manage medical device compliance. Learn more about the cookies we use and how to change your settings. Accept and continue Learn more about the cookies we use and how to change your settings. Information on standards BSI provides a wide range of information on national, European and international standards through its Library parrt its Technical Help to Exporters Service.
Copyright Copyright subsists in all BSI publications. Standard Keysteel stock materials. Carbon and carbon manganese steels, including free cutting steels. The use of larger key sections is not permitted. If you need help ordering online feel free call us and we will walk you through it.
BS A4 grade stainless steel. This will be indicated in the amendment table on theinside front cover. This standard has been updated see copyright date and may have had amendments incorporated.
NOTE 2The assembly of a taper key requires that the taper of the key be fitted to the keyway. This decision can be reversed. It was, however, still desirable that there should be the satisfaction of more padt assurance that no design limitation exists in the application of the thinner metric key sections.
BS — Specification for metric keys and keyways. Parallel and taper keys In cases such a stepped shafts when larger diameters are required, for example to resist bending, and when fans, gears and impellers are fitted with a smaller key than normal, an unequal disposition of key in shaft with relation to the hub results. Subscribing members of BSI are kept up to date with standards developments and receive substantial discounts on the purchase price of standards.
In this class, fitting will be required under maximum material conditions, and if it is required to obtain these conditions some selection of components may be necessary. The faster, easier way to work with standards. By using our website, you agree that we can place these types of cookies on your device. Recommended standard lengths are given in Table 9. The above reports are obtainable from the Reports Unit, National Engineering Laboratory, East Kilbride, Glasgow, to which enquirers should apply direct.
Standard Rectangular profile range paart Keysteel. The dimensions and tolerances above and in Table 6 have been determined so that this is possible in bs cases.
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BS4235 PART 1 PDF