U.S. Tsubaki Inc. - Heavy Series Chains

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.

Unit of Measure

Items	60HRB Heavy Series Chains	60HCB Heavy Series Chains	80HRB Heavy Series Chains	80HCB Heavy Series Chains	100HRB Heavy Series Chains
ANSI No.	N/A 60	N/A 60	N/A 80	N/A 80	N/A 100
P - Pitch	N/A 0.750 in	N/A 0.750 in	N/A 1.000 in	N/A 1.000 in	N/A 1.250 in
R - Roller Diameter	N/A 0.469 in	N/A 0.469 in	N/A 0.625 in	N/A 0.625 in	N/A 0.750 in
W - Width Between Roller Link Plates	N/A 0.500 in	N/A 0.500 in	N/A 0.625 in	N/A 0.625 in	N/A 0.750 in
T	N/A 0.125 in	N/A 0.125 in	N/A 0.156 in	N/A 0.156 in	N/A 0.187 in
H	N/A 0.713 in	N/A 0.713 in	N/A 0.949 in	N/A 0.949 in	N/A 1.185 in
h	N/A 0.614 in	N/A 0.614 in	N/A 0.819 in	N/A 0.819 in	N/A 1.024 in
D	N/A 0.234 in	N/A 0.234 in	N/A 0.312 in	N/A 0.312 in	N/A 0.375 in
Number of Strands	N/A 1
L1	N/A 0.583 in	N/A 0.583 in	N/A 0.720 in	N/A 0.720 in	N/A 0.858 in
L2	N/A 0.669 in	N/A 0.669 in	N/A 0.823 in	N/A 0.823 in	N/A 0.965 in
C - Transverse Pitch	N/A 1.028 in	N/A 1.028 in	N/A 1.283 in	N/A 1.283 in	N/A 1.539 in
Standard Type of Pin	N/A Riveted	N/A Cottered	N/A Riveted	N/A Cottered	N/A Riveted
Average Tensile Strength	N/A 9920 lb	N/A 9920 lb	N/A 17640 lb	N/A 17640 lb	N/A 26460 lb
Maximum Allowable Load	N/A 2200 lb	N/A 2200 lb	N/A 3630 lb	N/A 3630 lb	N/A 5510 lb
Strand	N/A Single