# hubstack and oring specs??

**URL:** <https://forums.yoyoexpert.com/t/hubstack-and-oring-specs/24585>\
**Category:** Looking for Help/Recommendation\
**Created:** [March 11, 2011, 10:51pm UTC](https://forums.yoyoexpert.com/t/hubstack-and-oring-specs/24585 "2011-03-11T22:51:22Z")\
**Posts on this page:** 7\
**Page:** 1

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**Author:** ![YOYOJAMizm](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/yoyojamizm/32/774_2.png) [@YOYOJAMizm](https://forums.yoyoexpert.com/u/YOYOJAMizm)\
**Post date:** [March 11, 2011, 10:51pm UTC](https://forums.yoyoexpert.com/t/hubstack-and-oring-specs/24585/1 "2011-03-11T22:51:22Z")

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can someone tell me the size of yoyofactory hubstacks and the oring size for the hubstack…

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**Author:** ![Camjameron](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/camjameron/32/775_2.png) [@Camjameron](https://forums.yoyoexpert.com/u/Camjameron)\
**Post date:** [March 11, 2011, 11:56pm UTC](https://forums.yoyoexpert.com/t/hubstack-and-oring-specs/24585/2 "2011-03-11T23:56:18Z")

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normal a bearing

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**Author:** ![YOYOJAMizm](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/yoyojamizm/32/774_2.png) [@YOYOJAMizm](https://forums.yoyoexpert.com/u/YOYOJAMizm)\
**Post date:** [March 13, 2011, 7:57pm UTC](https://forums.yoyoexpert.com/t/hubstack-and-oring-specs/24585/3 "2011-03-13T19:57:29Z")

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ive heard that the hubstack oring can wear down does this mean that at some point they will just snap

if so where could i find that oring without buying the hubstack set things

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**Author:** ![cavekid](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/cavekid/32/76957_2.png) [@cavekid](https://forums.yoyoexpert.com/u/cavekid)\
**Post date:** [March 13, 2011, 8:00pm UTC](https://forums.yoyoexpert.com/t/hubstack-and-oring-specs/24585/4 "2011-03-13T20:00:12Z")

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At such a small size, its harder to find. But, any harware store will have o-rings. Try a big department store. I worked at a small hardware store, and i dont believe we had such a small size.

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**Author:** ![DG1](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/dg1/32/606_2.png) [@DG1](https://forums.yoyoexpert.com/u/DG1)\
**Post date:** [March 13, 2011, 9:15pm UTC](https://forums.yoyoexpert.com/t/hubstack-and-oring-specs/24585/5 "2011-03-13T21:15:34Z")

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Okay, let me see…

the diameter should be 5mm for the stack, and in a CAD, you’d do half, so 2.5mm

For the width, start off w/ a 4mm length, then add a groove after that for the O-ring to sit in (Spec for O-ring isn’t needed).

After you do that, add about a .5mm length after the gap for a bit of room.

It should look like this, minus the spike:  
 ![](https://us1.discourse-cdn.com/flex015/uploads/yoyoexpert1/original/4X/c/8/1/c816700530a79b7d567658a7b2aaedb7485f414c.jpeg)

For the O-ring specs, if you have one of them, take them to the hardware store and see if they have them.

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**Author:** ![d42kn355](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/d42kn355/32/829_2.png) [@d42kn355](https://forums.yoyoexpert.com/u/d42kn355)\
**Post date:** [March 31, 2011, 1:14am UTC](https://forums.yoyoexpert.com/t/hubstack-and-oring-specs/24585/6 "2011-03-31T01:14:13Z")

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true value, 39 cents a pc. #60 1/4 x 1/8 x 1/16 🙂 mine snapped today and this size fit perfect

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**Author:** ![d42kn355](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/d42kn355/32/829_2.png) [@d42kn355](https://forums.yoyoexpert.com/u/d42kn355)\
**Post date:** [March 31, 2011, 3:28am UTC](https://forums.yoyoexpert.com/t/hubstack-and-oring-specs/24585/7 "2011-03-31T03:28:22Z")

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#60 1/4 x 1/8 x 1/16