Better bearings can make you go faster, especially when it comes to skates and skateboards.
While better bearings can make you go faster when skating or skateboarding the better bearings don't make you go much faster or by a huge amount.
The main difference when it comes to better bearings for your skates and skateboards is that you'll have a smoother and more consistent roll with less friction which helps you go a bit faster.
Having good quality bearings on your skates and skateboards reduces friction and allows the wheels of the skates and skateboards to spin much more freely and roll for longer distances with each push you make.
If the bearings on your skates or skateboard is old and worn out, then new bearings will certainly make a noticeable difference, especially if the bearings are rusty or even crunchy and not lubricated properly.
The type of wheel and the hardiness of the wheels of the skateboard or skates also have a significant role in the speed you can go with the skates and skateboard.
Having harder wheels for use on smooth surfaces can be faster than softer wheels, although they also can vibrate and lose speed through rough terrain.
Ensuring that the bearings on your skates and skateboards are properly lubricated can also lead to faster speeds.
Even your body weight, how you push and the surface that you're skating on also affect your speed.
Larger diameter wheels on your skateboard and skates can also make you go a bit faster as well.