Old garage door rollers could last for a few more years if you apply a lubricant to them. If they're rusty or have seized, it ...

You know the feeling. Another roller seized up mid-shift. Another bearing that was supposed to last years, gone after months. Another emergency call that throws your whole maintenance schedule off ...

Aiming at the problem of low efficiency and power factor of traditional induction motors, a new type of induction motor with toroidal winding is proposed. The geometric topology of the toroidal ...