# Size A bearing - Narrow and/or Half-speck?

**URL:** https://forums.yoyoexpert.com/t/size-a-bearing-narrow-and-or-half-speck/365271
**Category:** Yo-Yo Mods and Maintenance
**Created:** [November 3, 2022, 4:30pm UTC](https://forums.yoyoexpert.com/t/size-a-bearing-narrow-and-or-half-speck/365271 "2022-11-03T16:30:34Z")
**Posts on this page:** 8
**Page:** 1

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### Author: ![fos1](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/fos1/32/150706_2.png) [@fos1](https://forums.yoyoexpert.com/u/fos1)
#### Post date: [November 3, 2022, 4:30pm UTC](https://forums.yoyoexpert.com/t/size-a-bearing-narrow-and-or-half-speck/365271/1 "2022-11-03T16:30:34Z")

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Is there a source for a narrow or half-spec size A yoyo bearing?

Thank you

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### Author: ![bheinz63](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/bheinz63/32/137310_2.png) [@bheinz63](https://forums.yoyoexpert.com/u/bheinz63)
#### Post date: [November 3, 2022, 4:32pm UTC](https://forums.yoyoexpert.com/t/size-a-bearing-narrow-and-or-half-speck/365271/2 "2022-11-03T16:32:34Z")

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A-Bearings are 5x10x4mm, google 5x10x3mm bearing and you’ll find some.

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### Author: ![fos1](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/fos1/32/150706_2.png) [@fos1](https://forums.yoyoexpert.com/u/fos1)
#### Post date: [November 3, 2022, 5:33pm UTC](https://forums.yoyoexpert.com/t/size-a-bearing-narrow-and-or-half-speck/365271/3 "2022-11-03T17:33:20Z")

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Thank you.

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### Author: ![bheinz63](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/bheinz63/32/137310_2.png) [@bheinz63](https://forums.yoyoexpert.com/u/bheinz63)
#### Post date: [November 3, 2022, 5:38pm UTC](https://forums.yoyoexpert.com/t/size-a-bearing-narrow-and-or-half-speck/365271/4 "2022-11-03T17:38:18Z")

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you’re very welcome!

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### Author: ![jeduardo](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/jeduardo/32/624173_2.png) [@jeduardo](https://forums.yoyoexpert.com/u/jeduardo)
#### Post date: [November 3, 2022, 7:17pm UTC](https://forums.yoyoexpert.com/t/size-a-bearing-narrow-and-or-half-speck/365271/5 "2022-11-03T19:17:10Z")

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@fos1 if the bearing seat post of the yoyo is taller than 1.5 mm the half-spect bearing won’t work.

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### Author: ![bheinz63](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/bheinz63/32/137310_2.png) [@bheinz63](https://forums.yoyoexpert.com/u/bheinz63)
#### Post date: [November 3, 2022, 7:38pm UTC](https://forums.yoyoexpert.com/t/size-a-bearing-narrow-and-or-half-speck/365271/6 "2022-11-03T19:38:34Z")

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this is very true.

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### Author: ![Malachi](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/malachi/32/14039_2.png) [@Malachi](https://forums.yoyoexpert.com/u/Malachi)
#### Post date: [November 3, 2022, 7:54pm UTC](https://forums.yoyoexpert.com/t/size-a-bearing-narrow-and-or-half-speck/365271/7 "2022-11-03T19:54:25Z")

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Tell that to my bench grinder.

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### Author: ![fos1](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/fos1/32/150706_2.png) [@fos1](https://forums.yoyoexpert.com/u/fos1)
#### Post date: [November 7, 2022, 6:54pm UTC](https://forums.yoyoexpert.com/t/size-a-bearing-narrow-and-or-half-speck/365271/8 "2022-11-07T18:54:15Z")

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Received a pair of 5x10x3mm bearings today.

I installed one in my new Toonie yoyo. It fit perfectly. The Toonie is now moderately responsive.

I use the La’Grange for unresponsive. Best of both worlds with the mini’s.

Thank you for the tips,  
Jeff