A long-stroke wall friction device is made by Ajax equipment. Contact friction between the product being handled and a contact surface is a such a key design parameter for hopper and chute geometry, mixers, screw, scraper and other bulk handling conveyors that this value should be secured for all equipment designs of these catagories. Its importance can not be over-emphasised. ■

Originally Posted by chaitanya2102

Can Someone tell me about the companies which sells friction factor testing machines for idlers?

The rolling friction factor under load is an important criteria for estimating torque required for starting conveyor on Load. Such a machine can be easily designed for testing. If you are a manufacturing shop, you will have all the material required for testing in house. ■