Abstract: A web tension monitoring system in which a guide roll is supported for rotation upon bearings which are mounted on stub shafts extending inwardly from frame members. Load cells which include strain gauges are cantilever-mounted adjacent the internal ends of said stub shafts within the guide roll. Guide rolls and frame spacing of different lengths are accommodated by adjustable casing sleeves which permit variation of the amount of insertion of the stub shafts into the guide roll without affecting the operation of the load cells. Adaptors are provided to permit the use of guide rolls of differing diameters.

Abstract: A web tension monitor in which the tension of a moving web passing over a guide roll is monitored by a sensing device positioned upon a cantilever-mounted support which is coupled to a shaft which carries the roll. Forces applied to the roll by the tensioned web passing over it are coupled to a fixed frame through the cantilever-mounted support by means of a pair of concentric rings between which bearing balls are disposed in confronting openings formed in both members at diametrically opposed points. Misalignment and expansion of machine components can be tolerated to a large degree without causing pre-loading of the sensing device.