# Bearings
**URL:** https://forums.yoyoexpert.com/t/bearings/609
**Category:** General Yo-Yo
**Created:** [February 13, 2009, 4:00am UTC](https://forums.yoyoexpert.com/t/bearings/609 "2009-02-13T04:00:04Z")
**Posts on this page:** 6
**Page:** 1
### Author:  [@DYonch](https://forums.yoyoexpert.com/u/DYonch)
#### Post date: [February 13, 2009, 4:00am UTC](https://forums.yoyoexpert.com/t/bearings/609/1 "2009-02-13T04:00:04Z")
I’m pretty new, especially to mods, and I was wondering what kind of bearing will give me the longest sleep time?
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### Author:  [@Samad](https://forums.yoyoexpert.com/u/Samad)
#### Post date: [February 13, 2009, 4:28am UTC](https://forums.yoyoexpert.com/t/bearings/609/2 "2009-02-13T04:28:49Z")
Ceramic KonKave.
However, the longest doesnt matter. A normal Konkave, a 10-ball (which I recommend the most) and the dorothy, will all spin for a very long time.
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### Author:  [@EvanB](https://forums.yoyoexpert.com/u/EvanB)
#### Post date: [February 13, 2009, 1:31pm UTC](https://forums.yoyoexpert.com/t/bearings/609/3 "2009-02-13T13:31:07Z")
Koncave! it centers your string on the bearing
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### Author:  [@DYonch](https://forums.yoyoexpert.com/u/DYonch)
#### Post date: [February 13, 2009, 3:06pm UTC](https://forums.yoyoexpert.com/t/bearings/609/4 "2009-02-13T15:06:52Z")
How can I tell if the bearing fits my PGM?
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### Author:  [@Samad](https://forums.yoyoexpert.com/u/Samad)
#### Post date: [February 13, 2009, 4:08pm UTC](https://forums.yoyoexpert.com/t/bearings/609/5 "2009-02-13T16:08:05Z")
> [@DYonch](#):
>
> How can I tell if the bearing fits my PGM?
First of all, where are you ordering from? Second, the bearing is a size “C.” If you buy them at YYN, then the size will be: .250 x .500 x .187 in
Have Fun Throwing,
~Samad
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### Author:  [@DYonch](https://forums.yoyoexpert.com/u/DYonch)
#### Post date: [February 13, 2009, 4:30pm UTC](https://forums.yoyoexpert.com/t/bearings/609/6 "2009-02-13T16:30:22Z")
Thanks for the help.