ISO/TS 14521 / DIN 3996 Worm gear load capacity
CurrentLatest edition found. Still confirm amendments with the publisher.
- Edition
- ISO/TS 14521:2020 withdrawn → ISO 14521:2026; DIN 3996 2019-09
- Publisher
- ISO
- Part family
- Gears & gearboxes
- Reviewed
- 23 October 2026 · source checked
Is ISO/TS 14521 / DIN 3996 still current?
Yes. ISO/TS 14521:2020 withdrawn → ISO 14521:2026; DIN 3996 2019-09 is the latest edition MechAtlas found (MechAtlas review: 23 October 2026). Check the publisher for amendments before you specify it.
What it covers
Worm gear load capacity
Worm gear rating is now the full standard ISO 14521:2026.
Equivalent and related standards
| Standard | Relationship | Note |
|---|---|---|
| IS 7443 | Similar purpose — not interchangeable without an engineering check |
“Similar” never means interchangeable without an engineering check.
Official source
MechAtlas does not reproduce standards. Check the official edition at the publisher's page for ISO/TS 14521 / DIN 3996 or the ISO store.
Open in MechAtlasCheck a drawing callout
Other gears & gearboxes standards
- DIN 3961 Replaced
Tolerances for cylindrical gear teeth - bases - DIN 3962-1 Replaced
Tolerances for cylindrical gear teeth - individual deviations - ANSI/AGMA 2015-1-A01 Withdrawn
Accuracy classification system - tangential measurements for cylindrical gears - ANSI/AGMA 2001-D04 / 2101-D04 Changing
Gear rating, inch / metric - ISO 17485 Changing
Bevel gear accuracy - ANSI/AGMA 1010-F14 Current
Gear tooth wear and failure appearance - ANSI/AGMA 9005-F16 Current
Industrial gear lubrication - ANSI/AGMA ISO 1328-1-B14 Current
Cylindrical gears - ISO flank tolerance classification, part 1 (AGMA edition) - DIN ISO 1328-1 Current
Cylindrical gears - ISO flank tolerance classification, part 1 (ISO 1328-1:2013) - IS 3681 Current
Gears - cylindrical gears - accuracies - IS 4460 Current
Gears - spur and helical gears - calculation of load capacity - ISO 10300-1..3 Current
Bevel gear load capacity