coast flank (gears)

Inaxio L

Senior Member
Basque, Spanish
Hi! I'm translating this text on rolling (mechanics) and don't know what coast means here. It's related to gears. Thanks

"This causes a faiIure which starts near the tip of the coast flank of the die and ends at or below the pitch diameter on the drive flank."
  • Finished the project long ago, but the link is really helpful and interesting (next time, if there is any, I'll do it better, the text was damned specialized:eek:). Thanks frida