Dear customers,
We are saying goodbye for the Easter holidays and will be back in person for you from 22.04.2025.
Please note that new registrations and requests to be processed manually will only be processed from this date.
You can of course place orders and downloads online at any time, and our FAQs provide you with lots of helpful information.
We wish you a happy Easter!
Your DIN Media GmbH
Standard [CURRENT]
Product information on this site:
Quick delivery via download or delivery service
All transactions are encrypted
This standard defines terms and parameters for cylindrical worm gears with the flank forms A, C, I, K and N. These terms and parameters apply to gear sets, worms, worm wheels, tooth thickness allowances and backlash. DIN 3975-2 applies to deviations. The national interests in its preparation were represented by Committee NA 060-34-14 AA "Schneckenverzahnungen" ("Worm Gears") at Technical Section Gear of DIN Standards Committee Mechanical Engineering (NAM). Representatives of the manufacturers and users of worm gears as well as of employers' liability insurance associations were involved in the preparation.
This document replaces DIN 3975-1:2002-07 .