Sprockets Keyed-In-Line: When two strands of chain run parallel with each other and they are to be timed identically, it is important to have the keyway position to be in the same relationship on both sprockets. This is referred to, and should be ordered as “keyed-in- line” or “matched in pairs” to obtain this feature (Figure 1).
Figure 1
Fig
Figure 1
Sprocket Size: Use the largest diameter conveyor sprocket that space and economics permit. This minimizes chain speed variations and pulsations and reduces wear to the chain and sprocket. Figure 1
Figure 1 Figure 3 - Sprocket Tooth Wear Figure 2 - Sprocket Wear Figure 2 Sprocket Wear
Amount of Wear
Sprocket Life: When sprockets are worn, the chain tends to cling to the sprockets or vibrate. The amount of allowable wear depends on the application type and chain size. Wear to a depth of 0.12” (3 mm) to 0.24” (6 mm) is usually a sign that the existing sprocket should be replaced, illustrated in Figure 2. If the sprocket teeth are worn, the alignment may be incorrect. Proper axial alignment of the sprockets will help reduce or even eliminate wear of sprocket teeth, illustrated in Figure 3. Amount of Wear Figure 3 - Sprocket Tooth Wear
Figure 3 - Sprocket Tooth Wear Figure 3 Sprocket Tooth Wear
Amount of Wear
ustsubaki.com
227
Powered by FlippingBook