# One Bearing - Black Color **URL:** \ **Category:** Yo-Yo Mods and Maintenance\ **Created:** [September 17, 2013, 4:13pm UTC](https://forums.yoyoexpert.com/t/one-bearing-black-color/59296 "2013-09-17T16:13:51Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![Zorro](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/zorro/32/206266_2.png) [@Zorro](https://forums.yoyoexpert.com/u/Zorro)\ **Post date:** [September 17, 2013, 4:13pm UTC](https://forums.yoyoexpert.com/t/one-bearing-black-color/59296/1 "2013-09-17T16:13:51Z")
Okay, my brother bought a YYF One not long ago. He has been really enjoying it with whatever responsive bearing there is on it. Well, now the bearing is turning black and I have no clue why. ??? I have never lubed it or cleaned it. Does that mean I need to? If so, with what? ---
**Author:** ![anonyo](https://avatars.discourse-cdn.com/v4/letter/a/8baadc/32.png) [@anonyo](https://forums.yoyoexpert.com/u/anonyo)\ **Post date:** [September 17, 2013, 4:21pm UTC](https://forums.yoyoexpert.com/t/one-bearing-black-color/59296/2 "2013-09-17T16:21:58Z")
> [@Zorro](#): > > Okay, my brother bought a YYF One not long ago. He has been really enjoying it with whatever responsive bearing there is on it. > > Well, now the bearing is turning black and I have no clue why. ??? I have never lubed it or cleaned it. Does that mean I need to? > > If so, with what? Nothing to worry about. If you want to clean it, use whatever you want to clean it: acetone is my choice. I notice most older steel bearings do this. I have quite a few like this and none are giving me any issues or cause for concern. ---
**Author:** ![sparhawk](https://avatars.discourse-cdn.com/v4/letter/s/94ad74/32.png) [@sparhawk](https://forums.yoyoexpert.com/u/sparhawk)\ **Post date:** [September 18, 2013, 12:35am UTC](https://forums.yoyoexpert.com/t/one-bearing-black-color/59296/3 "2013-09-18T00:35:53Z")
It’s just oxidization from what I know