International Standard
ISO 21771:2007
Gears — Cylindrical involute gears and gear pairs — Concepts and geometry
Reference number
ISO 21771:2007
ISO 21771:2007
Edition 1
2007-09
2007-09
© ISO 2024
International Standard
p
ISO 21771:2007
35989
Published
(Edition 1, 2007)
This standard was last reviewed and confirmed in 2022.
Therefore this version remains current.
Expected to be replaced by ISO/DIS 21771-1.2 within the coming months.
Abstract
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.
General information
-
Status: PublishedPublication date: 2007-09Stage: International Standard to be revised [90.92]
-
Edition: 1Number of pages: 83
-
Technical Committee :ISO/TC 60/SC 1ICS :21.200
- RSS updates
Next version under development
Draft International Standard
ISO/DIS 21771-1.2
Cylindrical involute gears and gear pairs — Part 1: Concepts and geometry
Reference number
ISO/DIS 21771-1.2
ISO/DIS 21771-1.2
Edition 1
© ISO 2024
Draft
International StandardLife cycle
-
Previously
WithdrawnISO/TR 4467:1982
-
Now
-
Will be replaced by
Under developmentISO/DIS 21771-1.2
Got a question?
Check out our FAQs
Customer care
+41 22 749 08 88
Opening hours:
Monday to Friday - 09:00-12:00, 14:00-17:00 (UTC+1)