# Doubts about bearings **URL:** https://forums.yoyoexpert.com/t/doubts-about-bearings/376302 **Category:** Yo-Yo Mods and Maintenance **Created:** [May 26, 2023, 8:46pm UTC](https://forums.yoyoexpert.com/t/doubts-about-bearings/376302 "2023-05-26T20:46:09Z") **Posts on this page:** 5 **Page:** 1
### Author: ![Chaman](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/chaman/32/601454_2.png) [@Chaman](https://forums.yoyoexpert.com/u/Chaman) #### Post date: [May 26, 2023, 8:46pm UTC](https://forums.yoyoexpert.com/t/doubts-about-bearings/376302/1 "2023-05-26T20:46:10Z")
HELLO! I can’t find a ceramic concave bearing smaller than type A ☹ Do they exist? Does anyone know where to find them? Thank you all. ![20230526_183258](https://us1.discourse-cdn.com/flex015/uploads/yoyoexpert1/original/4X/d/8/e/d8e9e40cac677f853f25a054ce67bd67fda67d04.jpeg) ![20230526_183232](https://us1.discourse-cdn.com/flex015/uploads/yoyoexpert1/original/4X/0/5/1/051ba9d23ab50b455c59fade1406718fd2126f37.jpeg) ---
### Author: ![Eric\_Newlin](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/eric_newlin/32/598950_2.png) [@Eric\_Newlin](https://forums.yoyoexpert.com/u/Eric_Newlin) #### Post date: [May 26, 2023, 9:58pm UTC](https://forums.yoyoexpert.com/t/doubts-about-bearings/376302/2 "2023-05-26T21:58:03Z")
What size are you looking for? Edit: Just resized your pic wasn’t a type A. Is that 5x8x2.5 (MR85)? ---
### Author: ![Chaman](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/chaman/32/601454_2.png) [@Chaman](https://forums.yoyoexpert.com/u/Chaman) #### Post date: [May 27, 2023, 7:30am UTC](https://forums.yoyoexpert.com/t/doubts-about-bearings/376302/3 "2023-05-27T07:30:22Z")
Hello! Thanks for answering:) Yes, those are the exact measurements!Is this bearing size called an “E” bearing? Do you know if there are concave ceramic bearings of this small size? I can’t find them anywhere,maybe they’re not manufactured… Thank you;) ---
### Author: ![Eric\_Newlin](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/eric_newlin/32/598950_2.png) [@Eric\_Newlin](https://forums.yoyoexpert.com/u/Eric_Newlin) #### Post date: [May 27, 2023, 12:49pm UTC](https://forums.yoyoexpert.com/t/doubts-about-bearings/376302/4 "2023-05-27T12:49:40Z")
I don’t know about concave versions, but there are definitely flat ceramic bearings in that size. Just search “ceramic MR85” and double check that it’s 2.5mm wide. You should find a lot available. ---
### Author: ![Chaman](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/chaman/32/601454_2.png) [@Chaman](https://forums.yoyoexpert.com/u/Chaman) #### Post date: [May 27, 2023, 1:14pm UTC](https://forums.yoyoexpert.com/t/doubts-about-bearings/376302/5 "2023-05-27T13:14:46Z")
Thanks:)