# YYF PGM HEEEEELP!!!

**URL:** <https://forums.yoyoexpert.com/t/yyf-pgm-heeeeelp/23138>\
**Category:** Yo-Yo Mods and Maintenance\
**Created:** [January 26, 2011, 2:56am UTC](https://forums.yoyoexpert.com/t/yyf-pgm-heeeeelp/23138 "2011-01-26T02:56:07Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![orfitelliYO](https://avatars.discourse-cdn.com/v4/letter/o/e9a140/32.png) [@orfitelliYO](https://forums.yoyoexpert.com/u/orfitelliYO)\
**Post date:** [January 26, 2011, 2:56am UTC](https://forums.yoyoexpert.com/t/yyf-pgm-heeeeelp/23138/1 "2011-01-26T02:56:07Z")

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Im new to the yoyo world and i need help! My PGM is broken. I dont know what the part is called but i know what it looks like. Its the part that holds the hubstacks and the two smaller bearings. It got striped. Anyone know where to buy a replacement?

And should i buy a Koncave bearing to install on it?

Thanks for your guys help in advance!

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**Author:** ![jhb8426](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/jhb8426/32/631_2.png) [@jhb8426](https://forums.yoyoexpert.com/u/jhb8426)\
**Post date:** [January 26, 2011, 3:10am UTC](https://forums.yoyoexpert.com/t/yyf-pgm-heeeeelp/23138/2 "2011-01-26T03:10:41Z")

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I believe that’s called an axle. Take it to the hardware store and find a set screw of the same siz and thread. If they don’t have a set screw long enough buy a screw of the same thread that’s long enough to cut the head off. If you have to go that route, be sure to use a file to smooth the cut end.

Here’s the axle size:  
Pgm  
4mm x .7mm pitch bolt (long enough to fit)

You don’t need a KK for it.

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**Author:** ![patrickcondon](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/patrickcondon/32/619950_2.png) [@patrickcondon](https://forums.yoyoexpert.com/u/patrickcondon)\
**Post date:** [January 28, 2011, 12:22am UTC](https://forums.yoyoexpert.com/t/yyf-pgm-heeeeelp/23138/3 "2011-01-28T00:22:20Z")

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No, he means the hubstack post, not the axle.

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**Author:** ![TheFerret2010](https://avatars.discourse-cdn.com/v4/letter/t/76d3ee/32.png) [@TheFerret2010](https://forums.yoyoexpert.com/u/TheFerret2010)\
**Post date:** [January 28, 2011, 12:27am UTC](https://forums.yoyoexpert.com/t/yyf-pgm-heeeeelp/23138/4 "2011-01-28T00:27:30Z")

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Had the same issue with mine a few months back, your only option (that i found without having to buy another PGM) is to just replace the hubstack posts (and the axle basically) with a nut/bolt (4mm x .7mm pitch bolt) from a hardware store. You’ll lose the hubstacks of course, but that’s not really a loss in my opinion since I found the PGM to be way better without the stacks, less vibe and noisy, and I didn’t really use them anyways.

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**Author:** ![jhb8426](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/jhb8426/32/631_2.png) [@jhb8426](https://forums.yoyoexpert.com/u/jhb8426)\
**Post date:** [January 28, 2011, 2:12am UTC](https://forums.yoyoexpert.com/t/yyf-pgm-heeeeelp/23138/5 "2011-01-28T02:12:04Z")

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> [@patrickcondon](#):
>
> No, he means the hubstack post, not the axle.

Isn’t it just one long screw going all the way through?  
I’ve got the one w/o the hubstacks.

So if it’s a separate piece for the hubstacks, just find a screw of the right thread size then. It’s a stock thread, I’m sure.