7. Manipulation of Chains
7.1.2.2 Horizontal Precision and Parallelism of the Shafts Position of the shafts is shown in Figure 7.5, Figure 7.6, and Figure 7.7. 1.Check the horizontal specification with a level. The shafts should be horizontal within ±1/300. 2. Check the parallelism with a scale. They should be within (length A – B) / L = ±1/300. 3. Align the sprocket faces within tolerances shown in the table (Figure 7.7).
Level
Figure 7.5 Horizontal Positioning of the Shafts
Figure 7.6 Parallelism of the Shafts
Straight Edge
Gap
Distance between Shafts Gap Up to 1 m ± 1 mm
± Distance between Shafts (mm)
1 m to 10 m
Figure 7.7 Alignment of Sprockets
1,000
Over 10 m
± 10 mm
71
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