# concave bearing noise **URL:** \ **Category:** Yo-Yo Mods and Maintenance\ **Created:** [January 14, 2011, 2:07pm UTC](https://forums.yoyoexpert.com/t/concave-bearing-noise/22818 "2011-01-14T14:07:28Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![willysol](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/willysol/32/722_2.png) [@willysol](https://forums.yoyoexpert.com/u/willysol)\ **Post date:** [January 14, 2011, 2:07pm UTC](https://forums.yoyoexpert.com/t/concave-bearing-noise/22818/1 "2011-01-14T14:07:28Z")
Bought a concave C bearing last year for my yyj and yyf yo yos. Since the 1st day to the present it still very noise. I have cleanede it in mineral spirits , oiled it, ran it dry,spins great, but no luck. Did I get a bad bearing?? are all concaves loud .? Using it in the Hitman, will experiment with other bearings. ---
**Author:** ![jhb8426](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/jhb8426/32/631_2.png) [@jhb8426](https://forums.yoyoexpert.com/u/jhb8426)\ **Post date:** [January 14, 2011, 3:34pm UTC](https://forums.yoyoexpert.com/t/concave-bearing-noise/22818/2 "2011-01-14T15:34:46Z")
> [@](#): > > spins great. > Did I get a bad bearing?? Probably not. ---
**Author:** ![arem250](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/arem250/32/7922_2.png) [@arem250](https://forums.yoyoexpert.com/u/arem250)\ **Post date:** [January 14, 2011, 11:40pm UTC](https://forums.yoyoexpert.com/t/concave-bearing-noise/22818/3 "2011-01-14T23:40:10Z")
1. Use the search function, it seems like this type of post gets made every week. 2. No you did not get a bad bearing, some bearings are loud. As long as it has good spin time its fine. 3. Just put a minuscule amount of lube and let it break in. Don’t just put lube in and then throw it once, you have to let it break in, which takes some time.