Bearings are often-overlooked components that bring life to your bicycle. You can’t steer, roll, pedal or have a functioning drivetrain without bearings. Basically, anything that moves on your bike ...

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 ...

If the utility of an invention were somehow derived from the genius of its inventor, it would be pardonable that so many sources trace the idea for the ball bearing to a 1497 drawing by Leonardo da ...