2 1 1,5 2 3 4 5 6 1 8 30 3 10 20 15 4 0 2 18 Self-Supporting Capacity necessary to use the appropriate support rollers (see page 30), in order to confirm chain reliability in exceptional applications. All the H-heights reported into this catalogue are not including any Z-value due to the preload, therefore, whenever limitations to the maximum allowable height are required, you should refer to Brevetti Stendalto's Technical Dptm. Brevetti Stendalto chains, thanks to their specific construction, reach remarkably high values of self-supporting capacity and acceleration with long periods of motion, reaching millions of cycles. For particular applications (e.g. vertical travel), the chains can be provided without pre-set. A fundamental element in cable chains is the pre-set Z (Fig. A). This determines the self-supporting capacity, a characteristic which allows the cable chain to support not only it’s own weight, but also the weight of the cables/hoses placed in it and to keep its parallel or slightly curved upward position (Fig. B). The diagram of self-supporting capacity (Fig. C), indicates the weight relation of cables/hoses per linear meter to the lengths of self-supporting chain travel. The red-area indicates the difference between min/max chain widths, while the widest version has the lowest self-support capacity. With the application of cable chains with and weights not included in the area of the diagram of self-supporting capacity, it’s Nylon chain, type 310, in a self-supporting state. Fig. A Fig. B LS 2 Fig. C Additional load (kg/m) LS Max unsupported length 2 Narrowest chain version Widest chain version
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