# 2 bearing questions **URL:** \ **Category:** Looking for Help/Recommendation\ **Created:** [July 9, 2010, 5:37am UTC](https://forums.yoyoexpert.com/t/2-bearing-questions/16502 "2010-07-09T05:37:11Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![Yo\_Yo\_Ma\_X](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/yo_yo_ma_x/32/187_2.png) [@Yo\_Yo\_Ma\_X](https://forums.yoyoexpert.com/u/Yo_Yo_Ma_X)\ **Post date:** [July 9, 2010, 5:37am UTC](https://forums.yoyoexpert.com/t/2-bearing-questions/16502/1 "2010-07-09T05:37:11Z")
1. i have a few bearings that i have broken in, and now they seem to vibe a little. it is odd, because i used my friends and his was smooth after the breakin. how can i make them smooth again or prevent them from vibing after? is it the bearing? 2. why do people hate on WD40 for lube? it is a thin lube and it worked fine for my yoyos for a while. ---
**Author:** ![UnstoppableWalnut](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/unstoppablewalnut/32/512_2.png) [@UnstoppableWalnut](https://forums.yoyoexpert.com/u/UnstoppableWalnut)\ **Post date:** [July 9, 2010, 11:16am UTC](https://forums.yoyoexpert.com/t/2-bearing-questions/16502/2 "2010-07-09T11:16:44Z")
Nothing wrong with WD-40. Little trickier to use since it’s easy to spray to much when using the Aerosol can. WD-40 in the “no-mess pen” might help > **[WD-40 Lubricants, Degreasers & Rust Removal Products | WD-40](https://www.wd40.com/)** > > For over 50 years, people have relied on WD-40 to protect metal from rust and corrosion. Explore our lubricants, penetrating oils, cleaners and rust removal products. WD-40 is perfect for big and small jobs that require protection from rust and... WD-40 is 50% Mineral Spirits, which helps it get into tight openings/penetrate, clean, displace water It comes out of the dispenser liquidy, as the Mineral Spirits evaporate, the substance gets a little thicker. So people who spent the time getting just the right amount of responsiveness, the next day, the yoyo is responsive and when they flick the bearing, it doesn’t spin freely so they come to the conclusion that WD-40 can dissolve steel and eat away metal  ??? It would be like lubing your bearing before your bearing is completely dry after cleaning it. Some people use 3-in-One and thin it out with lighter fluid, which ends up as something similar to WD-40. ---
**Author:** ![Yo\_Yo\_Ma\_X](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/yo_yo_ma_x/32/187_2.png) [@Yo\_Yo\_Ma\_X](https://forums.yoyoexpert.com/u/Yo_Yo_Ma_X)\ **Post date:** [July 9, 2010, 7:39pm UTC](https://forums.yoyoexpert.com/t/2-bearing-questions/16502/3 "2010-07-09T19:39:13Z")
so all your saying is that it is easy to overlube it, and when you think it is just right, it may actually have been overlubed? ---
**Author:** ![psin](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/psin/32/397_2.png) [@psin](https://forums.yoyoexpert.com/u/psin)\ **Post date:** [July 9, 2010, 8:03pm UTC](https://forums.yoyoexpert.com/t/2-bearing-questions/16502/4 "2010-07-09T20:03:05Z")
> [@UnstoppableWalnut](#): > > Nothing wrong with WD-40. > Little trickier to use since it’s easy to spray to much when using the Aerosol can. > > WD-40 in the “no-mess pen” might help > [http://www.wd40.com/products/no-mess-pen/](http://www.wd40.com/products/no-mess-pen/) > > WD-40 is 50% Mineral Spirits, which helps it get into tight openings/penetrate, clean, displace water > It comes out of the dispenser liquidy, as the Mineral Spirits evaporate, the substance gets a little thicker. > > So people who spent the time getting just the right amount of responsiveness, the next day, the yoyo is responsive and when they flick the bearing, it doesn’t spin freely so they come to the conclusion that WD-40 can dissolve steel and eat away metal  ??? > > It would be like lubing your bearing before your bearing is completely dry after cleaning it. > > Some people use 3-in-One and thin it out with lighter fluid, which ends up as something similar to WD-40. It’s not because it eats metal. It’s because the viscosity of the lubrication it provides cannot hold up at the speeds that yoyo bearings spin at, and therefore increases friction. But really, if it works for you, who cares if your bearing wears out in Aug 2012 instead of Oct 2012 I don’t use it personally, because I prefer my bearings dry now, and previously because I think that WD-40 smells like roach spray and makes a gooey mess. ---
**Author:** ![UnstoppableWalnut](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/unstoppablewalnut/32/512_2.png) [@UnstoppableWalnut](https://forums.yoyoexpert.com/u/UnstoppableWalnut)\ **Post date:** [July 9, 2010, 10:31pm UTC](https://forums.yoyoexpert.com/t/2-bearing-questions/16502/5 "2010-07-09T22:31:10Z")
> [@cUrlYo](#): > > so all your saying is that it is easy to overlube it, and when you think it is just right, it may actually have been overlubed? - Viscosity effectively increases as solvents evaporate. - Misconceptions about WD-40 “eat metal,” “made out of fish oil,” “attracts dirt” (all liquid lubes do) - Mineral Spirits in WD-40, so people are wary of using it since most plastic yo-yos are Polycarbonate, but if you are lubing the bearing properly and not the entire yo-yo, it shouldn’t be a concern. > [@](#): > > It’s not because it eats metal. It’s because the viscosity of the lubrication it provides cannot hold up at the speeds that yoyo bearings spin at, and therefore increases friction. But really, if it works for you, who cares if your bearing wears out in Aug 2012 instead of Oct 2012 > I don’t use it personally, because I prefer my bearings dry now, and previously because I think that WD-40 smells like roach spray and makes a gooey mess. …Yes, fluid friction. The running torque (“responsiveness”) increases. ---
**Author:** ![Yo\_Yo\_Ma\_X](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/yo_yo_ma_x/32/187_2.png) [@Yo\_Yo\_Ma\_X](https://forums.yoyoexpert.com/u/Yo_Yo_Ma_X)\ **Post date:** [July 10, 2010, 6:40pm UTC](https://forums.yoyoexpert.com/t/2-bearing-questions/16502/6 "2010-07-10T18:40:13Z")
k got it. i understand wd40 things now. but why do my bearings start vibing after i break them in, and then i lube it and it is soooooper smooth. i thought it only got louder without lube (and damages the balls slightly faster) but why does it vibe more?