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Rollers are used in many fields and industries; there are powered rollers as well as unpowered rollers. Rollers with different properties and functions serve different purposes. For example, what is the stress condition on a power drum? Before using it, a detailed analysis of it is required. The drum is essentially considered a composite component made up of a barrel, a coupling plate, and a shaft that are welded together. In terms of function, both the tension of the conveyor belt and the torsional forces need to be transferred to the shaft, so as to transform the more complex internal stresses acting on various parts of the drum. Meanwhile, the stresses on each component differ in both direction and nature. There is a huge difference in the tension at both ends of the roller conveyor belt; the tension at the point of impact is greater than that at the point of departure. When in operation, the surface of the drive drum is under pressure, and its radial load varies from the loose side to the tight side, following an exponential pattern as well. Belt tension, the angle generated by the drum shaft, the stiffness of the coupling, the thickness of the drum shell, and so on – these are all factors that determine the internal stresses. In other words, the internal stress in this cylinder is highest when the wrap angle of the drum is 60 degrees. Damage to the drive drum also occurs under heavy loads, as the bending of the shaft leads to cracks appearing at the welds between the flange and the drum shell, as well as at the welds between the hub and the flange. Simply increasing the thickness of the backing layer in order to boost strength generally fails to achieve the desired result. Conversely, cracks will also occur, thereby reducing the service life of the socket. The belt tension acts directly on the drive drum, and the drum shaft as well as each component of the drum can experience displacement. The structural analysis of the force-induced deformation and displacement of the drive drum determines the calculation of the strength of the drum components. If you are not familiar with how to use a power roller, it is best to first analyze and understand the forces acting on it, so as to conduct a proper analysis and be able to use the power roller easily and leverage its true capabilities.