6 Sprocket Installation
Careful and accurate sprocket installation is required for smooth operation and maximum chain and sprocket life.
Sprocket Alignment 1. Level each shaft, checking the adjustment with a level applied directly to the shaft. The incline should be adjusted within the range of 1/300.
Incorrect
Correct
Level
Level
Figure 6-1: Shaft Alignment
2. Align the shaft for parallelism using a scale. Parallelism of the shafts should be adjusted so that the incline is within the range of 1/300 (A-B/L).
Incorrect
Correct
Figure 6-2: Shaft Parallelism
3. Check the axial alignment of the sprocket using a straightedge or scale. The following are the tolerances based on the distance between the shafts. Up to 1 m (3.3 ft.): 1 mm (0.04 in.) 1 m (3.3 ft.) to 10 m (33 ft.): Distance between 2 shafts/1,000 More than 10 m (33 ft.): 10 mm (0.39 in.)
Incorrect
Correct
Straight Edge
Straight Edge
Figure 6-3: Axial Alignment
4. Attach the sprockets using keys, collars, set bolts, etc., as necessary.
S PROCKET I NSTALLATION 9
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