Ball Count珠数

What it is

Ball count is simply the number of balls between a bearing's races. Bearings of the same size can be built with different counts, sometimes with a reduced-ball or full-complement design.

Why it matters

Ball count affects load, friction and sound. It is one variable among many, so compare complete bearings rather than judging by count alone.

Also known as: Number of Balls, 滚珠数量.