# Yomega raider bearing size

**URL:** <https://forums.yoyoexpert.com/t/yomega-raider-bearing-size/46076>\
**Category:** Yo-Yo Mods and Maintenance\
**Created:** [December 3, 2012, 4:56pm UTC](https://forums.yoyoexpert.com/t/yomega-raider-bearing-size/46076 "2012-12-03T16:56:18Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![merger3](https://avatars.discourse-cdn.com/v4/letter/m/c89c15/32.png) [@merger3](https://forums.yoyoexpert.com/u/merger3)\
**Post date:** [December 3, 2012, 4:56pm UTC](https://forums.yoyoexpert.com/t/yomega-raider-bearing-size/46076/1 "2012-12-03T16:56:18Z")

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I broke the stock bearing in my raider, and am going to buy a new one at my local hobbytown. does anyone know what the size of the bearing is?

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**Author:** ![mx.yoyo](https://avatars.discourse-cdn.com/v4/letter/m/dbc845/32.png) [@mx.yoyo](https://forums.yoyoexpert.com/u/mx.yoyo)\
**Post date:** [December 3, 2012, 5:51pm UTC](https://forums.yoyoexpert.com/t/yomega-raider-bearing-size/46076/2 "2012-12-03T17:51:52Z")

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I think they are E-sized bearings. Not sure on the actual measurements though.

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**Author:** ![merger3](https://avatars.discourse-cdn.com/v4/letter/m/c89c15/32.png) [@merger3](https://forums.yoyoexpert.com/u/merger3)\
**Post date:** [December 3, 2012, 5:57pm UTC](https://forums.yoyoexpert.com/t/yomega-raider-bearing-size/46076/3 "2012-12-03T17:57:10Z")

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Thats probably enough. I’ll look it up.

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**Author:** ![anonyo](https://avatars.discourse-cdn.com/v4/letter/a/8baadc/32.png) [@anonyo](https://forums.yoyoexpert.com/u/anonyo)\
**Post date:** [December 3, 2012, 6:26pm UTC](https://forums.yoyoexpert.com/t/yomega-raider-bearing-size/46076/4 "2012-12-03T18:26:12Z")

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The Yomega Raider bearing is:

4X8X3

Or:  
0.157" X 315" X 0.118" X

I think one of the YYF Loop-series also uses this sized bearing.

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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:** [December 3, 2012, 8:24pm UTC](https://forums.yoyoexpert.com/t/yomega-raider-bearing-size/46076/5 "2012-12-03T20:24:54Z")

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> [@Studio42](#):
>
> The Yomega Raider bearing is:
> 
> 4X8X3
> 
> Or:  
> 0.157" X 315" X 0.118" X
> 
> I think one of the YYF Loop-series also uses this sized bearing.

My official source says it’s .156 x .312 x .125 4 x 8 x 3 😃  
It’s a metric bearing so go with the 4x8x3 designation.

Whatever, take the old one with you to verify a fit. And also note that the letter sizing used in the yoyo world is not used most anywhere else.

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**Author:** ![anonyo](https://avatars.discourse-cdn.com/v4/letter/a/8baadc/32.png) [@anonyo](https://forums.yoyoexpert.com/u/anonyo)\
**Post date:** [December 3, 2012, 10:04pm UTC](https://forums.yoyoexpert.com/t/yomega-raider-bearing-size/46076/6 "2012-12-03T22:04:29Z")

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> [@jhb8426](#):
>
> > [@Studio42](#):
> >
> > The Yomega Raider bearing is:
> > 
> > 4X8X3
> > 
> > Or:  
> > 0.157" X 315" X 0.118" X
> > 
> > I think one of the YYF Loop-series also uses this sized bearing.
> 
> My official source says it’s .156 x .312 x .125 4 x 8 x 3 😃  
> It’s a metric bearing so go with the 4x8x3 designation.
> 
> Whatever, take the old one with you to verify a fit. And also note that the letter sizing used in the yoyo world is not used most anywhere else.

I think my conversion formula is off. We both agree on the metric values, which are more accurate anyways. That’s where I got my “standard” measurements from, was the metric values.