DIRECT DRIVE BELT DIRECT DRIVE BELT 3 TYPE No. DDK2 The left and right spirals are alternately embedded and connected by a crimped rod and driven by a dedicated sprocket. The dedicated sprocket is designed by specification of belts. The left-wound and right-wound spirals are arranged alternately and jointed with the pre-crimped rods. Since the direct sprocket drive is applied, the belt must conform to the specific specification. Feature Advantages ●As driven by sprocket, no slip meandering. Because the sprocket is used for driving, slip and meandering do not occur. ●Since rotating diameter can be reduced, transfer of transport material is smooth. Since the rotation diameter at terminals is small, smooth load transfer is ensured. ●Our proprietary Hardy-2 ※This belt uses less stretchy and hard to deform. Because Kansai's unique Hardy-2 (※) is used, the belt is characterized by little elongation and high deformation resistance. ●Light weight because the number of parts is smaller than a belt with a chain. As compared to the chain driven belt DDK2 requires smaller number of component parts, so that it is lighter. ●Washing is easy because there is little dead space. Because of reduced dead space, easy washing is ensured. ●The standard specification of the belt is fixed, making it easy to select. Since the standard specification of belts has been established, selection is easy. ●It is a system with low total cost. The system is characterized by lower total cost. DDK2-5-6.35-1.2-0.9 3 Rod diameter Rod diameter 2 Rod pitch 1 Spiral pitch 4 Spiral diameter Spiral diameter Spiral diameter Spiral diameter ■How to represent a belt Designation ■Standard specification (nominal size) Standard specification (nominal size) ※Hardy-2 has a hard line of SUS304 with a hardness of 30% or more. Hardy-2 uses SUS304 hard wire having hardness increased by more than 30%. Table 1 Table 1 1 2 3 4 This graph shows the growth of ordinary products at a certain load of 100. Comparison of growth at the same load Ordinary product 100 100 71.4 80 60 40 20 0 Hardy-2 does not extend than normal product as shown in the graph. In addition, since the hardness is increased by 30% or more, it excels in wear resistance and has a longer life. By making the belt Hardy-2, it realizes reliable driving and long life. As is evident from the figure the elongation of Hardy-2 is smaller than that of ordinary belts. Because of increased hardness (by more than 30%) it has excellent wear resistance and longer service life. Hardy-2 ensures reliable drive and long life. ■Strong belt Hardy-2 Strong belt - Hardy-2 - Figure 1 Figure 1 Figure 2 Figure 2 Figure 2 The elongation of normal belt under specific load is taken as 100. Comparison of elongation under the same load Ordinary units specification Weight (kg/m2) DDK2-16.9-19.05-19.05-1.6 3.32 DDK2-16.9-19.0-2.0 5.34 DDK2-10.1-12.7 −1.4 1.4 1.4 1.4 1.4 1.4 −1.4 1.4 1.4 −1.4 1.4 −1.4 −1.4 −1.4 −1.4 −1.4 −1.4 −1.4 −1.4 −1.4 −1.4 −4 −1.4 −1.4 −
RkJQdWJsaXNoZXIy NDY3NTA=