Crucial grooved bearing


#1

Is the crucial bearing ten ball? And what do you guys think about it? Is it worth buying?


#2

Crucial grooved is one of my favorite bearings. I bought 8 of them(They were pretty cheap) and I’m using 7 of them in my favorite yoyos.


#3

They’re an 8 ball bearing. I also love and have multiples of them. I like it a lot.


#4

What’s the difference between 8 ball and 10 ball bearings? Is it sleep time?


#5

10 balls are smoother but I find they don’t play as well.


#6

So ten ball bearings don’t sleep longer than eight ball bearings? They just play smoother


#7

Personally I think 10 balls do play smoother and do play better. They also last longer in my experience. However they do require more maintenance to keep it at it’s best


#8

Pretty much. 10 balls still sleep plenty long, just not quite as long as a good 8 ball.

Each ball in a bearing has two contact points, one with the inner race, and one with the outer race of the bearing. Since 10 balls have two more balls, they have 4 more points that are contacting the races of the bearing. This equates to more stability, which leads to a smoother bearing. But more contact points also means more contact area for friction to act on, which in turn leads to 10 ball bearings not spinning as long as 8 balls.

That being said, the grade of the bearing also comes into play. An OD 10 ball will generally spin longer than a YYF Spec bearing (8 balls), because the YYF Spec bearings aren’t constructed to as high of standards.


#9

Not to change my own subject, is the twisted trifecta any good compared to the crucial?


#10

Bearings all pretty much play the same. Its only when your actually trying to tell the difference that you can.


#11

Thanks for helping me decide, I’m buying two of the crucial bearings!