ISO-21771 › Gears - Cylindrical involute gears and gear pairs - Concepts and geometry

ISO-21771 - 1ST EDITION - CURRENT


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ISO 21771:2007 specifies the geometric concepts and parameters for cylindrical gears with involute helicoid tooth flanks. Flank modifications are included. It also covers the concepts and parameters for cylindrical gear pairs with parallel axes and a constant gear ratio, which consist of cylindrical gears according to it. Gear and mating gear in these gear pairs have the same basic rack tooth profile.

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Document Number

ISO 21771:2007

Revision Level

1ST EDITION

Status

Current

Publication Date

Sept. 1, 2007

Committee Number

ISO/TC 60/SC 1