21.120.10 - Shafts

This document specifies the rules and graphical symbols for the representations of splines and serrations in technical product documentation.
Two methods of representation are specified:
a)    complete representation;
b)    simplified representation.
The rules and graphical symbols specified in this document are applicable to detail drawings of parts (shafts and hubs) and to assembly drawings of joints.
NOTE       For uniformity, all the figures in this document have been drawn in the first-angle orthographic projection. A third-angle orthographic projection could equally have been used without prejudice to principles established.

This document is intended to be used together with the other generic parts of the EN 13001 series of standards, see Annex C, and as such, they specify general conditions, requirements and methods to prevent mechanical hazards of cranes by design and theoretical verification.
Specific requirements for particular types of cranes are given in the appropriate European standard for the particular crane type.
This document covers specific shafts and rotating or non-rotating axles as an integrated part of cranes, that are not dealt with by other EN 13001 standards (e.g. pinned connections in EN 13001-3-1). It is not applicable to shafts or axles being part of standard equipment (e.g. gearboxes, motors).
The significant hazardous situations and hazardous events that could result in risks to persons during intended use and reasonably foreseeable misuse are identified by Annex D. Clauses 4 to 7 of this document are necessary to reduce or eliminate these risks.
Clauses 4 to 7 of this document are necessary to reduce or eliminate these risks associated with the following hazards:
-   exceeding the limits of strength (yield, ultimate, fatigue);
-   exceeding temperature limits of material or components.
This standard does not deal with the proofs of strength of welded and cast shafts.
This document is not applicable to cranes that are manufactured before the date of its publication as EN and serves as reference base for the European standards for particular crane types (see Annex C).
NOTE   prEN 13001-3-8:2021 deals only with limit state method in accordance with EN 13001-1:2015.

This document is to be used together with EN 13001-1 and EN 13001-2 and as such they specify general conditions, requirements and methods to prevent mechanical hazards of cranes by design and theoretical verification.
Specific requirements for particular types of cranes are given in the appropriate European standard for the particular crane type.
This document covers shafts (axles) in cranes that are not dealt with by other EN 13001 standards (e.g. pinned connections in EN 13001-3-1). It is not intended for axles being part of standard components, e.g. gearboxes, motors ... however those axles shall be designed using load actions from EN 13001-2 and classification parameters of EN 13001-1.
NOTE   EN 13001-3-7 is under preparation for gears and gearboxes and deals with load actions for axles in gear boxes.
The following is a list of significant hazardous situations and hazardous events that could result in risks to persons during intended use and reasonably foreseeable misuse. Clauses 4 to 7 of this document are necessary to reduce or eliminate risks associated with the following hazards:
-   exceeding the limits of strength (yield, ultimate, fatigue);
-   exceeding temperature limits of material or components.
This document is not applicable to cranes which are manufactured before the date of its publication as EN and serves as reference base for the European standards for particular crane types (see Annex C).
NOTE   prEN 13001-3-8 deals only with limit state method in accordance with EN 13001-1.

Specifies four series in millimeters and five series in inches of shaft heights, indicating tolerances such as limit deviations and parallelism errors.

Rules and graphical symbols are given which are applicable to detail drawings of the parts (shafts and hubs) and to assembly drawings of joints. Both methods of the true and simplified representation are specifed. Annex A gives the proportions and dimensions of graphical symbols.

Specifies four series in millimeters and five series in inches of shaft heights, indicating tolerances such as limit deviations and parallelism errors.