If I have understood the enquiry, I believe that you can calculate according to F=u [friction factor] x N [normal force associated with return belt's mass subject to gravity etc], and add as a special resistance to your model [i.e. ISO 5048 Cl 5.1.4].

In principle this is similar to some of the other special resistances [i.e. cleaners, and ploughs] stated in Cl 5.1.4.

I have assumed that you have otherwise managed the return: inertia [i.e. "zeroed" idlers], and main resistances [i.e. zeroed/subtracted?] etc.

Regards,

Lyle

Edit: Typo. ■

Before delving into the spurious tension calculations just examine the cost implications. Purchasing will want to know if it is competitive & could low-fric be used on the chatting side as well. Then you'll get a lot more distraction than you bargained for. ■

Originally Posted by Sebastian.cortez

Hi to all. I need to calculate tensions to define pulleys and idlers for a conveyor which use a kind of slide UHMW bed in instead of idlers by return side. So, I will appreciate if someone could guide on what I have to consider this, I know that UHMW has a low friction, but in replace of idlers on conveyors, I guess the drag by return, will be higher than if use idlers, UHMW, but how much higher could be in case I am correct?

Dear Mr.Sebastian,



I fear that the friction may generate heat, which can cause fire accident. Why do you want to avoid rollers ?

Regards, ■