The first time I used a spacer on one of my skateboards was after I received my pair of Surf Rodz TKP. They provide four spacers as well as eight bearing with their set of trucks. I usually wouldn’t have used them but as there was no “speed rings” on the trucks I though they must have been designed to be used with spacers. As I felt that Surf Rodz know what they are doing I used them. And now I’m using spacers on each of my wheels, here is why.
What are spacers ?
Bearing spacers are simply little metal tubes that goes on the axles, between the two bearings. They exist in different sizes, but most are 8mm long on street wheels and 10mm long on longboard wheels. They have a very simple function: they prevent the bearing from being squeezed when the nut is tightened. If they are correctly sized, they allow the bearing to sit parallel one to another.
Why is it nice ?
The best thing about it, in my opinion is that it is way easier to install wheels on my trucks. With no spacer, I’ll have to put the wheel and tighten the nut until the wheels doesn’t have enough space to wiggle but not too tight or the bearing won’t roll anymore. Sometime a wheel won’t be tight enough and then it will slide from side to side as you roll, or sometime it will be too tight and the wheel will be slowed down… With bearing spacers I don’t have to think, I put the wheel, tighten the nut and then It’s down. The wheel doesn’t wiggle at all and the bearing is rolling freely.