English term
Brazil
Engineer plus 22 years of translations
Native in: Portuguese (Variant: Brazilian) 
Works in: English to Portuguese, Portuguese to English
dog teeth
The ***dog teeth*** become blunt and burr formation observed in all gears due to no entry chamfer provided.
Entry chamfer added to all gears engaging ***dog teeth***, for smooth transition of gear and avoid clashing of gear teeth.
| 4 +1 | dentes de travamento |
Clauwolf
|
| 4 | dentículo |
Matheus Chaud
|
| 4 | Rodas dentadas |
Jorge Silva
|
| 4 | acoplamento garras - acoplamento dentes |
MARCOS BAZILIO
|
| 4 | dentes da garra / do mordente |
Mario Freitas
|
Proposed translations
dentes de travamento
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Note added at 9 hrs (2022-02-23 11:16:10 GMT)
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Enter: dog boxes. So named for the dog “ears” that protrude from the gears, dog box transmissions are straight cut (as in the photo above), not helical (spiral cut) as in street transmissions. This allows the driver to jam the car from gear to gear, and they are bigger and beefier.8 de ago. de 2018
Here's How Dog Box and Sequential Transmissions Workhttps://jalopnik.com › heres-how-dog-box-and-sequential-
Brazil
IT Specialist • M.A. in Linguistics
Native in: Portuguese (Variant: Brazilian)
Works in: English to Portuguese, Spanish to Portuguese, Portuguese to English, and 1 more.
dentículo
Achei em um glossário de arquitetura, mas, pelas imagens, também serve no seu contexto:
https://www.google.com/search?q=chamfer dog teeth gear&sourc...
Portugal
Technical Translations
Native in: Portuguese (Variants: Brazilian, European/Portugal)
Works in: English to Portuguese, Portuguese to English, Portuguese to Spanish, and 6 more.
Rodas dentadas
Brazil
Generalist, SDL TRADOS! Engagement!
Native in: Portuguese (Variant: Brazilian)
Works in: English to Portuguese, Portuguese to English
acoplamento garras - acoplamento dentes
https://www.ufsm.br/app/uploads/sites/342/2020/04/ELEMENTOS-...
Brazil
32 years engineering/law/contracts
Native in: English (Variant: US) , Portuguese (Variant: Brazilian) 
Works in: English to Portuguese, Portuguese to English
Discussion
https://www.quora.com/What-is-dog-teeth-and-spur-gear