Buy BS Specification For Metric Keys And Keyways – Part 1: Parallel And Taper Keys from SAI Global. BS Specification For Metric Keys And Keyways – Part 1: Parallel And Taper Keys. Metric BS Part 1 and DIN; Imperial BS46 Part 1 Standard Keysteel stock materials. Keysteel M40 (EN8). Werkstoff C45 +C. Werkstoff.

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BS 4235-1-1972 Specification for Metric Keys and Keyways. Parallel and Taper Keys

View e-Privacy Directive Documents. In addition, a fourth class of fit is provided in this British Standard to give an interference fit. Recommended standard lengths are given in Table 9.

For an account or quote Login to view prices. Size px x x x x Delivery for this tool is normally a few days from order date. Copyright Copyright subsists in all BSI publications.

So please help us by uploading 1 new document or like us to download: You may find similar items within these categories by selecting from the choices below:. For an account call If you need help ordering online feel free call us and we will walk you through it. 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. Login to view prices. For a worn keyway shaft use our well stocked Interference fit range.

Shopping Cart and Categories navigation. The use of smaller key sections is permitted if suitable for the torque transmitted.

Keysteel | Key Steel | BS | DIN | BS46

bs423 Accept and continue Learn more about the cookies we use and how to change your settings. Keybar to the tolerances on width b and thickness h specified for the finished keys will not necessarily be commercially available. This is considered necessary to avoid the possibility of the rotation of the key which might occur in high torque, in reversing conditions, in applications where torsional vibration exists, or in precision applications.


It is incorporated by Royal Charter. A4 grade stainless steel.

This standard makes reference to the following British Standards: It was, however, still desirable that there should be the satisfaction of more positive assurance that no design limitation exists in the application of the thinner metric key sections.

This decision can be reversed. The Catalogue may be consulted in many public libraries and similar institutions.

In this class of fit, hand fitting will be necessary. Find Similar Items This product falls into the following categories.

General principles of presentation Basic conventions for lines. Please download Chrome bs423 Firefox or view our browser tips. The use of larger key sections which are special to any patr application is outside the scope of this standard.

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. In addition to the three classes of fit agreed byISO as mentioned above, the United Kingdom has found it necessary to introduce an additional class, an interference fit.

Subscribing members of BSI are kept up to date with standards developments and receive substantial discounts on the purchase bs435 of standards. 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.


Suggestions for improvements will be recorded and in due course brought to the notice of the committees charged with the revision of the standards to which they refer. By using our website, you agree that we can ;art these types of cookies on your device.

Details and advice can be obtained from the Copyright Manager. Users of British Standards are responsible for their correct application. The results of these investigations have been published and they demonstrate the pxrt of both static and dynamic tests, and include comparisons of the stresses and deformations of the two key forms at very high loadings.

The above reports are obtainable from the Reports Unit, National Engineering Laboratory, East Kilbride, Glasgow, to which enquirers should apply direct.

Woodruff key – series 2

Please fill this form, bs42355 will try to respond as soon as possible. Service Bespoke components Specification support Registration walk through Consaltation. This will be indicated in the amendment table on theinside front cover.

Standard Number BS This website is best viewed with browser version of up to Microsoft Internet Explorer 8 or Firefox 3. Keysteel Stainless Steel Zinc Plated. Parallel and Pary Keys October 26, Author: For a quote View cart order. The values in bold type are those which correspond most nearly with the preferred lengths given inTables 9 and 10 of BS

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