Belt Pull Calc

[aldumoul]

Hello - trying to figure out how to calculate the pull on the belt...

Motor:
-Pulley pitch dia. = 2.23"
-HP = 1.5 (service factor: 1.7 = 2.55 HP)
-RPM = 1165
-Torque: 81 in-lbs

Spindle:
-Pulley pitch dia. = 2.86"

Belt
-Span: 9.49"
-tension = 78.68 lbs
-Belt mass: 3.9 g/m
-Width: 25 mm (1")


_____ lbf

There is a calc. that I downloaded, and it ends up being 94lbf. Trying to avoid using the calculator as there are hundreds of applications that need belt pull added for a spreadsheet + the calculator is clunky.

 

[Gr8blu]

aldumoul Search engines can be your friend. See if the following link helps.

https://rulmecacorp.com/how-to-calculate-belt-pull/

Converting energy to motion for more than half a century

 

[aldumoul]

Yes - but still struggling to find what I need.

 

[mfgenggear]

https://www.facebook.com/groups/389731063332700

 

[aldumoul]

OK... this is how I came up with the answer: Step 12 A - just add those 2 calcs together

see page 183 in Gates manual (your browser will say you're on page 185)

https://files.engineering.com/getfi...ile=powergripdrivedesignmanual_17195_2014.pdf