# 2d plane stress gear pair

**URL:** <https://calculix.discourse.group/t/2d-plane-stress-gear-pair/2413>\
**Category:** Uncategorized\
**Created:** [September 23, 2024, 11:05am UTC](https://calculix.discourse.group/t/2d-plane-stress-gear-pair/2413 "2024-09-23T11:05:23Z")\
**Posts on this page:** 1\
**Showing post:** 25

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**Author:** ![JuanP74](https://avatars.discourse-cdn.com/v4/letter/j/b5a626/32.png) [@JuanP74](https://calculix.discourse.group/u/JuanP74)\
**Post date:** [September 26, 2024, 7:17pm UTC](https://calculix.discourse.group/t/2d-plane-stress-gear-pair/2413/25 "2024-09-26T19:17:32Z")

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> [@Aurea](#):
>
> However, is there any possibility to make it work by applying a torque in the pinion instead of a rotation???

It seems that applying the torque is a bit unstable, in abaqus you can fix it using `*CONTACT CONTROLS, stabilize` but in CCX you need to tweak the model to make it work. So far I was unsuccessful. More elements in the contact region may help as in the convergence table the number of contact spring changes wildly:

 ![imagen](https://global.discourse-cdn.com/free1/uploads/calculix/original/2X/a/a060e4305f40e5ca3ffd77ee9252b3147788206a.png)

Have a look to this thread on stiff contact problem: [Snap-fit contact snagging problem](https://calculix.discourse.group/t/snap-fit-contact-snagging-problem/2277)

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