Layouts Requiring Attention 1. If the slack side is on top, consider the following to eliminate extra chain slack: If the driving distance is short, adjust the center distance between the sprockets.
If the driving distance is long, adjust chain slack by installing an idler as shown in Figure 8-3. Figure 8-2: Short Driving Distance
Figure 8-3: Long Driving Distance
2. For pulsating loads caused by high chain speed: A stopper will help to prevent vibration. Chain vibration is often caused by the tune of the chain’s individual frequency, by the impact period of the driven shaft, or by chordal action of the chain.
Guide
*Clearance between the chain and guide stopper should be 2 mm (.781 in.) to 4 mm (.156 in.). Figure 8-4: Guide Stopper 3. For vertical centerlines: Install an idler to eliminate extra chain slack. When the driving shaft is on the lower side (A), an idler is essential.
Figure 8-5: Vertical Centerlines
14 I NSTALLATION & M AINTENANCE
Made with FlippingBook Digital Proposal Creator