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The Eng-Tips staff will check this out and take appropriate action. Exceptions This standard does not apply to: They may be submitted to tech agma. Red Flag This Post Please let us know here why this post is inappropriate. The intent of this document is to offer designers and users of flexible couplings preferred dimensions, tolerances and fits for metric bores and keyways.
Failing that, you need a fabrication drawing with dimensions and tolerances.
We are not even going into r7773, low profile, is, etc. Or to say it r73 way – answer every possible question about the part before it can be asked. Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
Very often keystock is sold in some arbitrarily long length – a foot, or is yard, or a meter – with individual keys cut to length from that stock by the user. It’s easy to join and it’s free. As for material of a key, all three standards state that: To fully and unambiguously define a rectilinear key you need: There is no interchangeability between B Resources Digital Transformation may be defined in a number of different ways by analysts or enterprise software vendors.
Suggestions for improvement of this standard will be welcome. Hardened keys shall be alloy steel through hardened to a Vickers hardness of to HV. Therefore, this standard does not intend to replace any existing metric standards, but to define what is preferred. Posting Guidelines Promoting, selling, recruiting, coursework and thesis posting is forbidden.
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Students Click Here Join Us! These characteristics have to be somehow controlled to make everything working properly.
Are you an Engineering professional? Perhaps if the size, shape, tolerance, material and finish of the key was given on a specific “standard” and that specific standard was quoted when the key was specified, then no problem. It seems very possible to me that you did not provide a complete and unambiguous definition that allowed whoever chastised you to buy or make uso key.
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SCOPE This standard presents metric dimensions, tolerances, sizes and fits for straight bores, tapered bores, keys and keyways for unmounted industrial flexible couplings. Click Here to r73 Eng-Tips and talk with other members!
Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework. Quote MintJulep One of the problems with “standards” is that there are so many of them – often for the same thing – and they are rarely all the same. Width Height Length Material Hardness Finish plating It is not clear to me from your two prior posts that you accomplished that. It is not clear from your second post what may be included in the “certain companies is.
Did you reference some kind of standard or document for this “standard metric key 20 x 12 for a 75mm dia.
In layman terms, what is “engineering”? I Googled “Standard Metric Keys” and the first hit I got told me that for a 75mm diameter shaft the “standard key size” is 22mm wide x 14mm high.
I figure that a clerical level person should able to take your parts list and order the parts on it such that you can assemble the system and it will work. Promoting, selling, recruiting, coursework and thesis posting is forbidden.
Inspection methods for straight and tapered bores and keyways are included in the annexes. If not then the people who told you you didn’t know what you were talking about – while perhaps being a tad harsh – did possibly have a point. One of the problems with “standards” is that there are so many of them – often for the same thing – and they are rarely all the same.
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