ANSI Single Pitch Curved (CU) Chain

Tsubaki Single Pitch Curved (CU) Chain

Due to Tsubaki's exclusive pin and bush structure and the wide plate to plate clearance, this roller chain has a large side flex radius. The basic dimensions of this chain are the same as ANSI standard roller chain. The ability to use ANSI standard sprockets makes curved transmission simple. Guides are required at all curved areas..

Single Strand Details

Tsubaki ANSI Single Pitch Curved Chain Tsubaki Single Pitch Curved (CU) Chain
Dimensions in mm
Tsubaki Chain No. Pitch
p
Roller Diameter
d1
Inner Width
b1
RS40-CU 12.70 1/2" 7.92 7.95
RS50-CU 15.875 5/8" 10.16 9.53
RS60-CU 19.05 3/4" 11.91 12.70
RS80-CU 25.40 1" 15.88 15.88
Dimensions in mm
Tsubaki Chain No. Pin Link Plate Min. Bending Radius
r
Approx. Mass
kg/m
Diameter
d2
Length
L1
Length
L2
Thickness
T
Height
H (max.)
RS40-CU 3.97 8.45 9.75 1.50 12.00 350 0.61
RS50-CU 5.09 10.60 12.40 2.00 15.00 400 1.01
RS60-CU 5.96 13.25 15.05 2.40 18.10 500 1.40
RS80-CU 7.94 16.75 20.05 3.20 24.10 600 2.47