4. Top Chains
Table 4.2 Profile of TTPTop Chain
Sprocket
Bushing Maximum Chain Pitch Diameter Allowable Number
Outer Diameter
(mm)
(mm)
Load (kN) of Teeth P.C.D.
Steel
Plastic of Idler Wheel
9.5
117.33 129.26 141.22 153.20
N/A
38.1
12.7
0.83
10.5 11.5 12.5
130
142.5
154.5 (Segmented)
Table 4.3 Top Plate Dimensions
Top Plate
Low-
Heat-
Anti-
Width (mm)
Standard Friction Resistant
Chemical
Electroconductive Plastic Pin
82.6
N/A
Consult
114.3
N/A Manufacturer Consult N/A Manufacturer
190.1
: Available
Sprockets Use special sprockets for TTP Top Chain. Chains may slide off the steel sprocket due to uneven load distribution or misalignment. There are optional guide rings for steel sprockets to prevent this. Engineered plastic sprockets have integral guides at every tooth, or every second tooth. An engineered plastic idler pulley may be substituted for the sprocket at the tail shaft. The idler pulley rotates freely, without bearings, on the fixed steel shaft. NOTE: Excessive chain tension can damage the idler pulley.
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