Bicycles rely on smooth-turning, low-friction bearings to allow them to roll forward with as little human effort as possible. We can’t create frictionless bearings – even Shimano hasn’t cracked ...

Bearing types and functions—from plain bearings to roller-element bearings Bearing maintenance; the importance of proper lubrication Bearing specialist certification and common manufacturer standards ...

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 ...