What is BS EN 16974- Indentation rolling resistance related to conveyor belt about?  
BS EN 16974 defines a method for the determination of the width-related indentation rolling resistance of conveyor belts.
The goal of BS EN 16974 is that the method easily and quickly delivers values that are reproducible and relevant for practical use. The test results enable a comparing evaluation and the design of belt conveyors with steel cord and fabric conveyor belts.
Note: BS EN 16974 is not suitable or valid for light conveyor belts described in EN ISO 21183-1.
Who is BS EN 16974- Indentation rolling resistance related to the conveyor belt for? 
BS EN 16974 on indentation rolling resistance related to the conveyor belt is useful for: 
- Conveyor belts manufacturers
- Conveyor belts operators
- Safety organizations
- Quality Testing agencies
Why should you use BS EN 16974- Indentation rolling resistance related to conveyor belt?  
The indentation rolling resistance is caused by the energy loss connected to the deformation of the conveyor belt due to its contact with the idler. Apart from the technological properties of the conveyor belt, the magnitude of the indentation rolling resistance depends on the following factors:
- Design of the conveyor belt, especially the pulley side cover plate thickness
- Vertical loa
- Idler diameter
- Ambient temperature
- Belt speed
The width-related indentation rolling resistance is measured in a test rig with an idler which exerts an evenly distributed vertical force on the belt. An indentation rolling resistance to be used for the design of belt conveyors for an idler station with more than one idler can only be calculated considering the vertical forces and their distribution between belt and idler.
BS EN 16974 provides test procedures for determining the indentation rolling resistance of conveyor belts. BS EN 16974 also specifies the conversion of the measured width-related indentation rolling resistance to a 3-part idler station.
