- Vivek Ingle

# How to Calculate Load Carrying Capacity of Conveyor Rollers?

Calculating load on conveyor roller is simple arithmatic and very easy. Assume that you have to design a Gravity Roller Conveyor System for carton box conveying.
Weight of the carton box is 50kg
Length of the box is 400mm
Width of the box is 300mm
**Lets Calculate**
width of the rollers = width of the carton box + 50mm
So Roller length is 350mm
Now we have to decide **how many rollers will be below the carton box? **
For a component, Box, product to be stable 3nos of rollers are required below it, assuming equal distribution of weight in the product. So 400/3 = 133mm will be roller pitch. ( Roller Pitch is always considered as Centre to Centre) . We will consider roller pitch as 100mm on a safer side. so there will be 4 rollers below the box at any time. It means 50kg weight will be distributed on 4nos of rollers. Caculating further we shall get 12.5kg
Finally we need 12.5kg of load carrying capacity roller over a length of 350mm.

*â€‹In Spite of all above calculations and load Capacity Chart, one shoudl note that above the capacities at the chart are indicative only. The load carrying capacity is depedant on lot of other factors like product weight concentricity, impact load generated on the rollers while loading the component on conveyor etche*