Heavy Series roller chains differ from the ASME/ANSI standard series in the extra thickness of the link plates and the extra length of the pins. These link plates have the same thickness as the link plates of ASME/ANSI chains having the next larger pitch. The thicker link plates provide greater capacity (approximately 10%) for absorbing shock loads. These chains are suitable in situations where the load is heavy or operating conditions are severe.
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Unit of Measure
Items
Heavy Series Chains

Heavy Series Chains
Heavy Series Chains

Heavy Series Chains
Heavy Series Chains

Heavy Series Chains
Heavy Series Chains

Heavy Series Chains
Heavy Series Chains

Heavy Series Chains
ANSI No. N/A 60 N/A 80 N/A 100 N/A 120 N/A 140
P - Pitch N/A 0.750 in N/A 1.000 in N/A 1.250 in N/A 1.500 in N/A 1.750 in
R - Roller Diameter N/A 0.469 in N/A 0.625 in N/A 0.750 in N/A 0.875 in N/A 1.000 in
W - Width Between Roller Link Plates N/A 0.500 in N/A 0.625 in N/A 0.750 in N/A 1.000 in N/A 1.000 in
T N/A 0.125 in N/A 0.156 in N/A 0.187 in N/A 0.219 in N/A 0.250 in
H N/A 0.713 in N/A 0.949 in N/A 1.185 in N/A 1.425 in N/A 1.661 in
h N/A 0.614 in N/A 0.819 in N/A 1.024 in N/A 1.228 in N/A 1.433 in
D N/A 0.234 in N/A 0.312 in N/A 0.375 in N/A 0.437 in N/A 0.500 in
Number of Strands N/A 1
L1 N/A 0.583 in N/A 0.720 in N/A 0.858 in N/A 1.061 in N/A 1.138 in
L2 N/A 0.669 in N/A 0.823 in N/A 0.965 in N/A 1.203 in N/A 1.303 in
C - Transverse Pitch N/A 1.028 in N/A 1.283 in N/A 1.539 in N/A 1.924 in N/A 2.055 in
Standard Type of Pin N/A Riveted
Average Tensile Strength N/A 9920 lb N/A 17640 lb N/A 26460 lb N/A 37480 lb N/A 48510 lb
Maximum Allowable Load N/A 2200 lb N/A 3630 lb N/A 5510 lb N/A 7270 lb N/A 9590 lb
Strand N/A Single