Curved Chain
Tsubaki Curved Chains are provided with additional clearance between pins and bushings and between 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 ANSI standard roller chains.
| Chain No. | Pitch P |
Roller Dia. R |
Width between Roller Link Plates W |
| RS35CU ^ | 9.525 | 5.08 | 4.78 |
| RS40CU | 12.700 | 7.92 | 7.95 |
| RS50CU | 15.875 | 10.16 | 9.53 |
| RS60CU | 19.050 | 11.91 | 12.70 |
| RS80CU | 25.400 | 15.88 | 15.88 |
| Chain No. | Pin | Link Plate | Min. Radius of Side Bow r |
|||||
| Dia. D |
From Pin Head to C.L. L1 |
From Pin end to C.L. L2 |
L1 + L2 | Thickness T |
Height H |
Height h |
||
| RS35CU ^ | 3.18 | 6.05 | 7.65 | 13.7 | 1.25 | 9.0 | 7.8 | 254 |
| RS40CU | 3.97 | 8.45 | 9.75 | 18.2 | 1.5 | 12.0 | 10.4 | 350 |
| RS50CU | 5.09 | 10.6 | 12.4 | 23.0 | 2.0 | 15.0 | 13.0 | 400 |
| RS60CU | 5.96 | 13.25 | 15.05 | 28.3 | 2.4 | 18.1 | 15.6 | 500 |
| RS80CU | 7.94 | 16.75 | 20.05 | 36.8 | 3.2 | 24.1 | 20.8 | 600 |
| Chain No. | Average Tensile Strength kN {kgf} |
Maximum Allowable Load kN {kgf} |
Approx. Mass kg/m |
| RS35CU ^ | 8.04 {820} | 930 {95} | 0.31 |
| RS40CU | 15.5 {1,580} | 1.86 {190} | 0.61 |
| RS50CU | 24.1 {2,460} | 2.84 {290} | 1.01 |
| RS60CU | 34.9 {3,560} | 4.02 {410} | 1.40 |
| RS80CU | 61.6 {6,280} | 6.96 {710} | 2.47 |
| Chain No. | Attachment | Additional Weight per Attachment kg/att. |
|||||
| C | N | O | S | X | A Att. | K Att. | |
| RS35CU ^ | 9.5 | 7.9 | 3.4 | 6.35 | 14.5 | 0.0008 | 0.0016 |
| RS40CU | 12.7 | 9.5 | 3.6 | 8.0 | 18.0 | 0.0020 | 0.0040 |
| RS50CU | 15.9 | 12.7 | 5.2 | 10.3 | 23.7 | 0.0030 | 0.0060 |
| RS60CU | 19.1 | 15.9 | 5.2 | 11.9 | 28.5 | 0.0070 | 0.0140 |
| RS80CU | 25.4 | 19.1 | 6.8 | 15.9 | 37.1 | 0.0130 | 0.0260 |
^ Roller-less (bushing only)