Unlike the more conventional aligned-contact guidance provided by traditional roller-bearing bushings, the patented Bolexp ball-guidance bushings run at a slight angle, thereby increasing the contact ...

What makes rotary ball splines ideal for dual motion How preload influences spline performance Why groove shape and ball contact matter The pros and cons of crossed-roller vs. angular-contact bearings ...

Editor's note: An updated version of this information can be found here. Bearings are used to help reduce friction. Metal-upon-metal contact produces large amounts of friction. The friction adds to ...