@eugenewebber4887

THE LOWER EXAMPLE ENSURES MUCH MORE FRICTION, HOWEVER THAT IS DUE TO THE INCREASE IN CONTACT SURFACE, WHICH MAKES THIS DESIGN FAR MORE RELIABLE AND STABLE, PROVIDING THE POTENTIAL FOR MUCH MORE TORQUE TO BE APPLIED.
THE UPPER EXAMPLE IS MORE SUITED TO LIGHT APPLICATIONS AT LOW TO MODERATE RPM RANGES. THE WEAR PATTERN IN THIS DESIGN WOULD CAUSE THE SLIDER TO BECOME LOOSE AND WOULD EVENTUALLY BREAK THE SLIDE SHAFT. 
A STANDARD U-JOINT WOULD PROVIDE MUCH MORE RELIABILITY WHILE BEING CAPABLE OF MORE TORQUE TO BE APPLIED WITHOUT STRUCTURAL FAILURE.

@brucerfchannel3829

Bottom one is a coupling for slight misalignment of the two shafts. Not the exagerated amount as shown

@jaceydesigning4

Good Design

@user-qm9xi5pe6s

Верхняя лучше. Позволяет осям поворачиваться на угол, и перемещаться в разных направлениях

@edsantos6627

Universal joint.. car prop shaft.. 🙏

@zuraromelashvili8327

The georgean music vibing in background

@tycoon89

Old Ham

@KLENT_Ik

Как называется программа, в которой создавалась эта демонстрация?

@landscapingspecialist

Portal gears

@zuraromelashvili8327

Can you make 4 speed gearbox with reverse