U.S. Tsubaki Power Transmission, LLC
U.S. Tsubaki Holdings, Inc.
Corporate Headquarters
301 E. Marquardt Dr.
Wheeling, IL 60090 USA

Toll Free: 800.323.7790
Phone: 847.459.9500
Fax: 847.459.9515
Email: sales@ustsubaki.com
Website: www.ustsubaki.com
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U.S. Tsubaki Curved chain has additional clearance between the pins and bushings and between the roller links and pin link plates to permit extra flexibility and greater lateral displacement. The basic dimensions of this chain are the same as those of ASME/ANSI standard roller chain.

U.S. Tsubaki's unique design of the curved chain does not taper the pin diameter, which allows the pin diameter to be uniform throughout.
Curved Chain Attachment
Unit of Measure
Items Curved Chain Attachment
RS35CU A-1
Curved Chain Attachment 		Curved Chain Attachment
RS40CU A-1
Curved Chain Attachment 		Curved Chain Attachment
RS50CU A-1
Curved Chain Attachment 		Curved Chain Attachment
RS60CU A-1
Curved Chain Attachment 		Curved Chain Attachment
RS80CU A-1
Curved Chain Attachment
ANSI No. N/A 35 N/A 40 N/A 50 N/A 60 N/A 80
Attachment Number N/A A-1
Pitch N/A 0.375 in N/A 0.500 in N/A 0.625 in N/A 0.750 in N/A 1.000 in
R - Roller Diameter N/A 0.200 in N/A 0.312 in N/A 0.400 in N/A 0.469 in N/A 0.625 in
W - Width Between Roller Link Plates N/A 0.188 in N/A 0.312 in N/A 0.375 in N/A 0.500 in N/A 0.625 in
D N/A 0.125 in N/A 0.156 in N/A 0.200 in N/A 0.234 in N/A 0.312 in
L1 N/A 0.238 in N/A 0.333 in N/A 0.417 in N/A 0.522 in N/A 0.659 in
L2 N/A 0.301 in N/A 0.384 in N/A 0.488 in N/A 0.593 in N/A 0.789 in
L1+L2 N/A 0.539 in N/A 0.717 in N/A 0.905 in N/A 1.115 in N/A 1.448 in
T - Link Plate N/A 0.050 in N/A 0.060 in N/A 0.080 in N/A 0.094 in N/A 0.125 in
t - Link Plate N/A 0.050 in N/A 0.060 in N/A 0.080 in N/A 0.094 in N/A 0.125 in
H - Link Plate N/A 0.354 in N/A 0.472 in N/A 0.591 in N/A 0.713 in N/A 0.949 in
h - Link Plate N/A 0.307 in N/A 0.409 in N/A 0.512 in N/A 0.614 in N/A 0.819 in
r - Min. Radius of Side Bow N/A 10.000 in N/A 14.000 in N/A 16.000 in N/A 20.000 in N/A 24.000 in
Average Tensile Strength N/A 1800 lb N/A 3480 lb N/A 5420 lb N/A 7830 lb N/A 13840 lb
Maximum Allowable Load N/A 210 lb N/A 420 lb N/A 640 lb N/A 900 lb N/A 1560 lb
Approx. Weight N/A 0.220 lbs/ft N/A 0.410 lbs/ft N/A 0.680 lbs/ft N/A 0.940 lbs/ft N/A 1.660 lbs/ft
N N/A 0.311 in N/A 0.374 in N/A 0.500 in N/A 0.625 in N/A 0.752 in
S N/A 0.250 in N/A 0.315 in N/A 0.406 in N/A 0.469 in N/A 0.626 in
X N/A 0.571 in N/A 0.709 in N/A 0.933 in N/A 1.122 in N/A 1.461 in
C N/A 0.375 in N/A 0.500 in N/A 0.626 in N/A 0.750 in N/A 1.000 in
O N/A 0.102 in N/A 0.141 in N/A 0.205 in N/A 0.205 in N/A 0.268 in
Additional Weight per Attachment N/A 0.002 lb N/A 0.004 lb N/A 0.007 lb N/A 0.015 lb N/A 0.029 lb