# Quick Question

**URL:** https://forums.yoyoexpert.com/t/quick-question/23839
**Category:** Yo-Yo Mods and Maintenance
**Created:** [February 16, 2011, 10:53am UTC](https://forums.yoyoexpert.com/t/quick-question/23839 "2011-02-16T10:53:40Z")
**Posts on this page:** 4
**Page:** 1

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### Author: ![HOWxiao](https://avatars.discourse-cdn.com/v4/letter/h/df705f/32.png) [@HOWxiao](https://forums.yoyoexpert.com/u/HOWxiao)
#### Post date: [February 16, 2011, 10:53am UTC](https://forums.yoyoexpert.com/t/quick-question/23839/1 "2011-02-16T10:53:40Z")

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Can i use the BEARING of my YYF PROTOSTAR (CENTER TRAC) to my YYJ TRINITY ? ???

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### Author: ![yoyomatt2](https://avatars.discourse-cdn.com/v4/letter/y/f19dbf/32.png) [@yoyomatt2](https://forums.yoyoexpert.com/u/yoyomatt2)
#### Post date: [February 16, 2011, 12:31pm UTC](https://forums.yoyoexpert.com/t/quick-question/23839/2 "2011-02-16T12:31:21Z")

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probably. put it in the trinity half and if it fits then you can try it.

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### Author: ![HOWxiao](https://avatars.discourse-cdn.com/v4/letter/h/df705f/32.png) [@HOWxiao](https://forums.yoyoexpert.com/u/HOWxiao)
#### Post date: [February 16, 2011, 1:00pm UTC](https://forums.yoyoexpert.com/t/quick-question/23839/3 "2011-02-16T13:00:43Z")

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it fits i guess? the bearing spins fine is it ok ? i mean arent there any posiblities that i could brake it?

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### Author: ![Rika-chan](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/rika-chan/32/767_2.png) [@Rika-chan](https://forums.yoyoexpert.com/u/Rika-chan)
#### Post date: [February 16, 2011, 1:45pm UTC](https://forums.yoyoexpert.com/t/quick-question/23839/4 "2011-02-16T13:45:53Z")

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all you do is see if both are size C bearings, witch they are. if they are same size you can switch em