ENGINEERING 43 Rod pitch and roller diameter Rod pitch and roller diameter Rod pitch and roller diameter In general, the smaller the roller diameter, the shorter the life of the belt due to deformation due to the bend of the belt. Therefore, please select the roller diameter referring to the graph below. However, if the weight of the product is heavy, the drive roller diameter should be larger than the graph below. Generally, the service life of belts is shorter due to bending deformation of belts as the roller diameter is reduced. Accordingly, select the roller diameter, referring to the graph shown below. However, if products are heavy, it is necessary to use the drive roller having a diameter greater than the diameter shown below in the graph. This applies when the maximum operating temperature of the belt is 800°C or less and the temperature of the belt when passing through each roller is 260°C or less. The data plotted in this graph are valid in conditions where the maximum operating temperature of belt is 800℃or below and the temperature of belt which passes through each roller is 260℃or below. (Note) TYPE No.A4 must be selected as a numerical value of the rod pitch three times. Note:Select with 3times rod pitch for A4type. (Note) TYPE No.A3 must be selected by double the rod pitch. Note:Select with 2times rod pitch for A3type. 900 800 700 600 500 400 300 200 10 0 0 10 20 30 Roller diameter [mm] Recommended diameter of drive roller and end roller roller roller roller Recommended diameter of take-up roller and snup roller roller roller roller roller roller roller roller roller roller roller roller roller roller roller roller roller roller roller and roller roller roller roller roller roller roller roller roller roller roller roller roller roller roller roller size and roller roller roller roller roller roller size Figure 2-up roller roller roller roller roller roller size figure 2-up roller roller size figure 29
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