Are there any differences between the guide rail and the roller guide? What role did they play?
For example, drawer bar, general drawer of the ball, with roller, then you pull, and sometimes not stuck, then the whole drawer will be pulled outGenerally, the ball bearings would not have this problem, they have their own fixed system.So I think the steel ball rail is better
Ball, then generally run better, will not appear outside. But the rollers aren't the same
Generally, ball bearings are steel balls, and the roller wheels are generally flat and round like wheels.The general three rail two rail or rail, underpinning what, most of the ball.Common rail. What do steel plates smoke, mostly rollers?.
