Failure Rate Of Belt And Rollers Of Supermarket Checkout

Find out where supermarkets buy their belts and ask the belt makers the question.

They will know the answers to your project questions.

Have you searched for belt maintenance management on the web?

They buy their belts from the company that services them.

Ex Belt Maker

The most significant failure mode is likely to be the drive motor and starter gequipment which can experience up to 36,000 start/stop cycles per hour in busy periods. The average over a ten hour day is probably nearer 8000 per hour. Even with specially wound motors and soft start technology, few motors would tolerate that type of duty for more than a few weeks.

I've never seen a cashier that could average 10 items per second for an hour to achieve 36,000 start/stop cycles per hour.

I like to know where you shop at. At 36,000 start/stops an hour that's ten a second. there is no way the cashier is going to dance on that foot petal that fast. Or pick up an item from in front of the electric eye and scan it that fast. Even at 8000 and hour that more then two a second.

A lot of the manufactures have gone to these.

In the years that I worked on them don't remember any of these drum rollers that failed do to motor issues. So many failed do to spills of something tacky. In most those cases the cashier changed lanes until it dried. And when they started it back up the belt was glued to the bed. The torque of the motor would spin the shaft in that block shown where the wires are coming out. That block is to hold the shaft from turning with the set screw shown at the top. Axle turns wires twist off.

Only other controls is a 8 pin relay device for the electric eyes, the eyes and a foot petal switch over ride. Which were easy to replace and relatively inexpensive.

OK guys I fouled up. I multiplied by 10 instead of dividing by ten. My intention was to suggest a stop every 10 seconds at busy times and every 25 seconds when averaged over the whole day. It is still an arduous duty.

Oh by the way....good project. So long as you do your due diligence and use google an other search engines, everybody here will be rooting for you. Just don't ask questions you can google easily, or we will mock you!