# my friend and i met some problem with yoyo design

**URL:** <https://forums.yoyoexpert.com/t/my-friend-and-i-met-some-problem-with-yoyo-design/43935>\
**Category:** General Yo-Yo\
**Created:** [October 12, 2012, 9:27am UTC](https://forums.yoyoexpert.com/t/my-friend-and-i-met-some-problem-with-yoyo-design/43935 "2012-10-12T09:27:24Z")\
**Posts on this page:** 4\
**Page:** 1

<div class="post-metadata">

**Author:** ![tomyu168](https://avatars.discourse-cdn.com/v4/letter/t/6de8d8/32.png) [@tomyu168](https://forums.yoyoexpert.com/u/tomyu168)\
**Post date:** [October 12, 2012, 9:27am UTC](https://forums.yoyoexpert.com/t/my-friend-and-i-met-some-problem-with-yoyo-design/43935/1 "2012-10-12T09:27:24Z")

</div>

we don’t know how to measure the bearing set size and the response size ,any one give some advice or if you know the outer diametre and inner diametre of standard yoyojam and yoyorecreation yoyo 's response system and bearing set, pls tell us!

---

<div class="post-metadata">

**Author:** ![dirty\_birdy](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/dirty_birdy/32/299_2.png) [@dirty\_birdy](https://forums.yoyoexpert.com/u/dirty_birdy)\
**Post date:** [October 12, 2012, 10:02am UTC](https://forums.yoyoexpert.com/t/my-friend-and-i-met-some-problem-with-yoyo-design/43935/2 "2012-10-12T10:02:35Z")

</div>

Calipers and micrometers are wonderful measurement tools and can give you the answers you seek…

db

---

<div class="post-metadata">

**Author:** ![Michaeldude](https://avatars.discourse-cdn.com/v4/letter/m/5daacb/32.png) [@Michaeldude](https://forums.yoyoexpert.com/u/Michaeldude)\
**Post date:** [October 12, 2012, 2:13pm UTC](https://forums.yoyoexpert.com/t/my-friend-and-i-met-some-problem-with-yoyo-design/43935/3 "2012-10-12T14:13:00Z")

</div>

Or measure the diameter and multiply it by pi XD

---

<div class="post-metadata">

**Author:** ![tomyu168](https://avatars.discourse-cdn.com/v4/letter/t/6de8d8/32.png) [@tomyu168](https://forums.yoyoexpert.com/u/tomyu168)\
**Post date:** [October 15, 2012, 9:09am UTC](https://forums.yoyoexpert.com/t/my-friend-and-i-met-some-problem-with-yoyo-design/43935/4 "2012-10-15T09:09:23Z")

</div>

> [@dirty\_birdy](#):
>
> Calipers and micrometers are wonderful measurement tools and can give you the answers you seek…
> 
> db

thanks a lot , i bought a digital caliper, it can handle depth ,inner and outer diametre and with only 100rmb, problem solved