Roller Chain - Tsubaki
Roller Chain - Tsubaki
Roller Chain - Tsubaki
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Introduction to<strong>Tsubaki</strong> <strong>Roller</strong> <strong>Chain</strong>Drive <strong>Chain</strong>5. Maximum Allowable LoadThe maximum allowable load is the tension load for which a chain is rated to carry inrunning operation. Proper chain tension is critical because excessive tension can causeaccelerated wear/breakage or chain overload and excessive slack can cause roughchain operation and may result in the chain skipping a sprocket tooth.The use of one-pitch offset links reduces the maximum allowable load – it now becomes65% of the maximum allowable load of the main chain.Two-pitch offset links do not change the maximum allowable load of the main chain.In Figure 4 below, the maximum allowable load is indicated by Pmax.Pmax = (Pm + Pa) = 2.2PaWhere a new roller chain with over 5 links receives a repetitive load with a frequency of10 6 .Fig. 4 Summary chart for repetitive loadsLoadTime6. Horsepower Ratings TableRS <strong>Roller</strong> <strong>Chain</strong> and SUPER <strong>Roller</strong> <strong>Chain</strong> HP rating tables show HP values that allow15,000 hours of operation using a two-shaft drive and 100 pitches of roller chain underconditions 1 - 5 below. The HP ratings table of LAMBDA chain is based on conditions 1- 4 and shows HP rating values when LAMBDA chain is used with two shafts. Lambda<strong>Chain</strong> has more than 14 times the wear elongation of Standard RS <strong>Roller</strong> <strong>Chain</strong>operated without lubrication (#120 and #140 have five times). X-LAMBDA has morethen five times the wear elongation life of Lambda <strong>Roller</strong> <strong>Chain</strong>.1) The chains are operated under ordinary conditions where the ambient temperature is–10°C ~ +60°C (+14°F ~ +140°F) and there is no abrasive dust.2) There are no negative effects from corrosive gasses or a high humidity.3) The two transmission shafts are in a horizontal position and the chains are properlyinstalled.4) There is minimal fluctuation in load during transmission.5) The recommended lubrication system and lubricant shown in the HP rating tables isused for RS <strong>Roller</strong> <strong>Chain</strong> and SUPER <strong>Roller</strong> <strong>Chain</strong>.7. Moment of Inertia (I / J / GD 2 )Moment of Inertia is used to show the degree of inertia in rotational movement, in otherwords, “rotation difficulty”, or “rotation ease.” This is equivalent to the mass (weight) ofthe object being used for straight-line transmission.A-6
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