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AIA/NAS - NASM27545 - KEY, WOODRUFF, ALLOY STEEL - REV 1 Organization: AIA/NAS
Date: 2011-02-28
Description: This specification covers requirements for alloy steel woodruff keys. Keys are used to restrict the movement of certain machine members and retain their position as assembled.
NPFC - OO-K-220 - KEY, MACHINE Organization: NPFC
Date: 2015-11-24
Description: This specification covers the requirements for machine keys, except woodruff keys. Machine keys are used to restrict the movement of certain machine members and to retain their position as assembled.
ISO 8821 - MECHANICAL VIBRATION - BALANCING - SHAFT AND FITMENT KEY CONVENTION FIRST EDITION; (NZS/ISO 8821: 1989) Organization: ISO
Date: 1989-01-01
Description: Although the figures in this International Standard show keys of constant rectangular or square cross-section, mounted parallel to the shaft axis, this International Standard applies also to keys mounted on tapered shaft surfaces, to woodruff, gib, dowel and other special keys. The principle of the half-key convention as outlined in the definition and elsewhere is then applied as is appropriate to the particular shape and location of the special key.
ISO 21940-32 - MECHANICAL VIBRATION - ROTOR BALANCING - PART 32: SHAFT AND FITMENT KEY CONVENTION - FIRST EDITION Organization: ISO
Date: 2012-03-15
Description: In addition to applying to keys of constant rectangular or square cross-section mounted parallel to the shaft centreline, this part of ISO 21940 also applies to keys mounted on tapered shaft surfaces, to woodruff, gibhead, dowel and other special keys. The principle of the half-key convention is applied as is appropriate to the particular shape and location of the special key.
DIN ISO 21940-32 - MECHANICAL VIBRATION - ROTOR BALANCING - PART 32: SHAFT AND FITMENT KEY CONVENTION (ISO 21940-32:2012) Organization: DIN
Date: 2012-08-01
Description: In addition to applying to keys of constant rectangular or square cross-section mounted parallel to the shaft centreline, this part of ISO 21940 also applies to keys mounted on tapered shaft surfaces, to woodruff, gibhead, dowel and other special keys. The principle of the half-key convention is applied as is appropriate to the particular shape and location of the special key.

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