The Pencoflex coupling consists of two cast iron hubs (concave and convex) fitted with pins equipped with rubber bushings. These pins are made from ground steel, are cylindrical in shape, and are available in sizes up to 460.PencoflexPins sized from 145 to 200 are axially secured by snap rings and nuts; those sized from 235 to 460 use retaining rings.PencoflexFor connection size 510, the pins are tapered and threaded, and are joined using screws and washers. Snap rings limit the translational movement of the bushings.PencoflexThe rubber bushings are vulcanized onto wear-resistant brass liners, which are mounted on the pins with a specific clearance. This allows them to rotate freely and move slightly in the longitudinal direction. Consequently, the stress applied to the bearings is significantly reduced.PencoflexThe unique sector-shaped barrel bushing ensures uniform load distribution, even under misalignment conditions, thereby limiting the bending moment generated by radial forces on the pins. This ensures improved durability for both the bushings and the pins.