ANSI G8
Tsubaki's 8th model upgrade, celebrating 100 years of quality. Pursuing the ultimate in quality, Tsubaki has created the world's highest standard of roller chain.
For more detailed information and to download CAD data about RS roller chain click here
Single Strand Details
| Tsubaki Chain No. | Pitch (p) | Roller Diameter | Inner Width | |
|---|---|---|---|---|
| mm | Inch | R | W | |
| RS25-1 | 6.35 | ¼" | 3.30 | 3.18 |
| RS35-1 | 9.525 | ⅜" | 5.08 | 4.78 |
| RS37-1 | 12.70 | ½" | 7.80 | 3.40 |
| RS38-1 | 12.70 | ½" | 7.80 | 4.80 |
| RS41-1 | 12.70 | ½" | 7.77 | 6.38 |
| RS40-1 | 12.70 | ½" | 7.92 | 7.95 |
| RS50-1 | 15.875 | ⅝" | 10.16 | 9.53 |
| RS60-1 | 19.05 | ¾" | 11.91 | 12.70 |
| RS80-1 | 25.40 | 1" | 15.88 | 15.88 |
| RS100-1 | 31.75 | 1¼" | 19.05 | 19.05 |
| RS120-1 | 38.10 | 1½" | 22.23 | 25.40 |
| RS140-1 | 44.45 | 1¾" | 25.40 | 25.40 |
| RS160-1 | 50.80 | 2" | 28.58 | 31.75 |
| RS180-1 | 57.15 | 2¼" | 35.71 | 35.72 |
| RS200-1 | 63.50 | 2½" | 39.68 | 38.10 |
| RS240-1 | 76.20 | 3" | 47.63 | 47.63 |
| Tsubaki Chain No. | Pin | Link Plate | |||||
|---|---|---|---|---|---|---|---|
| Diameter | Length | Offset Pin Length |
Thickness | Height | |||
| ∅D | L1 | L2 | L | T | h | H | |
| RS25-1 | 2.31 | 3.80 | 4.50 | - | 0.74 | 5.05 | 5.84 |
| RS35-1 | 3.59 | 5.85 | 6.85 | 13.50 | 1.25 | 7.80 | 9.00 |
| RS37-1 | 3.63 | 5.10 | 5.90 | 12.45 | 1.00 | 7.08 | 9.80 |
| RS38-1 | 3.63 | 6.00 | 7.10 | 14.10 | 1.10 | 8.40 | 9.80 |
| RS41-1 | 3.59 | 6.75 | 7.95 | 15.10 | 1.25 | 8.40 | 9.80 |
| RS40-1 | 3.97 | 8.25 | 9.95 | 17.90 | 1.50 | 10.40 | 12.00 |
| RS50-1 | 5.09 | 10.30 | 11.90 | 22.50 | 2.00 | 13.00 | 15.00 |
| RS60-1 | 5.96 | 12.85 | 14.75 | 28.20 | 2.40 | 15.60 | 18.10 |
| RS80-1 | 7.94 | 16.25 | 19.25 | 36.60 | 3.20 | 20.80 | 24.10 |
| RS100-1 | 9.54 | 19.75 | 22.85 | 43.70 | 4.00 | 26.00 | 30.10 |
| RS120-1 | 11.11 | 24.90 | 28.90 | 55.00 | 4.80 | 31.20 | 36.20 |
| RS140-1 | 12.71 | 26.90 | 31.70 | 59.50 | 5.60 | 36.40 | 42.20 |
| RS160-1 | 14.29 | 31.85 | 36.85 | 70.20 | 6.40 | 41.60 | 48.20 |
| RS180-1 | 17.46 | 35.65 | 42.45 | 80.60 | 7.15 | 46.80 | 54.20 |
| RS200-1 | 19.85 | 39.00 | 44.80 | 87.30 | 8.00 | 52.00 | 60.30 |
| RS240-1 | 23.81 | 47.90 | 55.50 | 106.70 | 9.50 | 62.40 | 72.40 |
| Tsubaki Chain No. | Transverse Pitch C |
ANSI Standard Min. Tensile Strength kN |
TSUBAKI Min. Tensile Strength kN |
Approx. Mass Kg/m |
Number of links per unit |
|---|---|---|---|---|---|
| RS25-1 | - | 3.50 | 4.12 | 0.14 | 160 |
| RS35-1 | - | 7.90 | 9.81 | 0.33 | 320 |
| RS37-1 | - | - | 8.14 | 0.29 | 240 |
| RS38-1 | - | - | 8.14 | 0.35 | 240 |
| RS41-1 | - | 6.7 | 10.3 | 0.41 | 240 |
| RS40-1 | - | 13.9 | 17.7 | 0.64 | 240 |
| RS50-1 | - | 21.8 | 28.4 | 1.04 | 192 |
| RS60-1 | - | 31.3 | 40.2 | 1.53 | 160 |
| RS80-1 | - | 55.6 | 71.6 | 2.66 | 120 |
| RS100-1 | - | 87.0 | 107.0 | 3.99 | 96 |
| RS120-1 | - | 125.0 | 148.0 | 5.93 | 80 |
| RS140-1 | - | 170.0 | 193.0 | 7.49 | 68 |
| RS160-1 | - | 223.0 | 255.0 | 10.10 | 60 |
| RS180-1 | - | 281.0 | 336.0 | 13.45 | 54 |
| RS200-1 | - | 347.0 | 427.0 | 16.49 | 48 |
| RS240-1 | - | 500.0 | 623.0 | 24.50 | 40 |
- RS25 - RS35 are roller-less chain (only bush). The figure shown is the bush diameter.
- Connecting links are clip type for sizes up to RS60, and cotter type for
sizes RS80 to RS200.
RS240 connecting links are spring pin type. - When a single pitch offset link is used, please calculate a 35% reduction of the fatigue strength.
- Two pitch offset links (2POL) can be used at 100% of the above values.
- Please contact us to get an updated stock information.
Double Strand Details
| Tsubaki Chain No. | Pitch (p) | Roller Diameter | Inner Width | |
|---|---|---|---|---|
| mm | Inch | R | W | |
| RS25-2 | 6.35 | ¼" | 3.30 | 3.18 |
| RS35-2 | 9.525 | ⅜" | 5.08 | 4.78 |
| RS40-2 | 12.70 | ½" | 7.92 | 7.95 |
| RS50-2 | 15.875 | ⅝" | 10.16 | 9.53 |
| RS60-2 | 19.05 | ¾" | 11.91 | 12.70 |
| RS80-2 | 25.40 | 1" | 15.88 | 15.88 |
| RS100-2 | 31.75 | 1¼" | 19.05 | 19.05 |
| RS120-2 | 38.10 | 1½" | 22.23 | 25.40 |
| RS140-2 | 44.45 | 1½" | 25.40 | 25.40 |
| RS160-2 | 50.80 | 2" | 28.58 | 31.75 |
| RS180-2 | 57.15 | 2¼" | 35.71 | 35.72 |
| RS200-2 | 63.50 | 2½" | 39.68 | 38.10 |
| RS240-2 | 76.20 | 3" | 47.63 | 47.63 |
| Tsubaki Chain No. | Pin | Link Plate | |||||
|---|---|---|---|---|---|---|---|
| Diameter | Length | Offset Pin Length |
Thickness | Height | |||
| ∅D | L1 | L2 | L | T | h | H | |
| RS25-2 | 2.31 | 7.00 | 7.70 | - | 0.75 | 5.05 | 5.84 |
| RS35-2 | 3.59 | 10.90 | 11.90 | 24.50 | 1.25 | 7.80 | 9.00 |
| RS40-2 | 3.97 | 15.45 | 17.15 | 33.50 | 1.50 | 10.40 | 12.00 |
| RS50-2 | 5.09 | 19.35 | 21.15 | 41.80 | 2.00 | 13.00 | 15.00 |
| RS60-2 | 5.96 | 24.25 | 26.25 | 52.60 | 2.40 | 15.60 | 18.10 |
| RS80-2 | 7.94 | 30.90 | 33.90 | 67.50 | 3.20 | 20.80 | 24.10 |
| RS100-2 | 9.54 | 37.70 | 40.80 | 81.50 | 4.00 | 26.00 | 30.10 |
| RS120-2 | 11.11 | 47.60 | 51.60 | 103.20 | 4.80 | 31.20 | 36.20 |
| RS140-2 | 12.71 | 51.35 | 56.15 | 112.30 | 5.60 | 36.40 | 42.20 |
| RS160-2 | 14.29 | 61.15 | 66.15 | 132.20 | 6.40 | 41.60 | 48.20 |
| RS180-2 | 17.46 | 68.75 | 75.35 | 151.10 | 7.15 | 46.80 | 54.20 |
| RS200-2 | 19.85 | 74.85 | 80.65 | 161.20 | 8.00 | 52.00 | 60.30 |
| RS240-2 | 23.81 | 91.90 | 99.40 | 198.40 | 9.50 | 62.40 | 72.40 |
| Tsubaki Chain No. | Transverse Pitch C |
ANSI Standard Min. Tensile Strength kN |
TSUBAKI Min. Tensile StrengthkN |
Approx. Mass Kg/m |
Number of links per unit |
|---|---|---|---|---|---|
| RS25-2 | 6.40 | 7.00 | 8.24 | 0.27 | 160 |
| RS35-2 | 10.10 | 15.80 | 19.60 | 0.69 | 320 |
| RS40-2 | 14.40 | 27.80 | 35.30 | 1.27 | 240 |
| RS50-2 | 18.10 | 43.60 | 56.90 | 2.07 | 192 |
| RS60-2 | 22.80 | 62.60 | 80.40 | 3.04 | 160 |
| RS80-2 | 29.30 | 111.2 | 143.0 | 5.27 | 120 |
| RS100-2 | 35.80 | 172.0 | 214.0 | 7.85 | 96 |
| RS120-2 | 45.40 | 250.0 | 296.0 | 11.70 | 80 |
| RS140-2 | 48.90 | 340.0 | 386.0 | 14.83 | 68 |
| RS160-2 | 58.50 | 446.0 | 510.0 | 20.04 | 60 |
| RS180-2 | 65.80 | 562.0 | 673.0 | 26.52 | 54 |
| RS200-2 | 71.60 | 694.0 | 853.0 | 32.63 | 48 |
| RS240-2 | 87.80 | 1000.0 | 1250.0 | 48.10 | 40 |
- RS25 - RS35 are rollerless chain (only bush). The figure shown is the bush diameter.
- Connecting links are clip type for sizes up to RS60, and cotter type for
sizes RS80 to RS200.
RS240 connecting links are spring pin type. - When a single pitch offset link is used, please calculate a 35% reduction of the fatigue strength.
- Two pitch offset links (2POL) can be used at 100% of the above values.
- Please contact us to get an updated stock information.
Triple Strand Details
| Tsubaki Chain No. | Pitch (p) | Roller Diameter | Inner Width | |
|---|---|---|---|---|
| mm | Inch | R | W | |
| RS25-3 | 6.35 | ¼" | 3.30 | 3.18 |
| RS35-3 | 9.525 | ⅜" | 5.08 | 4.78 |
| RS40-3 | 12.70 | ½" | 7.92 | 7.95 |
| RS50-3 | 15.875 | ⅝" | 10.16 | 9.53 |
| RS60-3 | 19.05 | ¾" | 11.91 | 12.70 |
| RS80-3 | 25.40 | 1" | 15.88 | 15.88 |
| RS100-3 | 31.75 | 1¼" | 19.05 | 19.05 |
| RS120-3 | 38.10 | 1½" | 22.23 | 25.40 |
| RS140-3 | 44.45 | 1¾" | 25.40 | 25.40 |
| RS160-3 | 50.80 | 2" | 28.58 | 31.75 |
| RS180-3 | 57.15 | 2¼" | 35.71 | 35.72 |
| RS200-3 | 63.50 | 2½" | 39.68 | 38.10 |
| Tsubaki Chain No. | Pin | Link Plate | |||||
|---|---|---|---|---|---|---|---|
| Diameter | Length | Offset Pin Length |
Thickness | Height | |||
| ∅D | L1 | L2 | L | T | h | H | |
| RS25-3 | 2.31 | 10.15 | 10.95 | - | 0.75 | 5.05 | 5.84 |
| RS35-3 | 3.59 | 16.00 | 16.90 | 34.60 | 1.25 | 7.80 | 9.00 |
| RS40-3 | 3.97 | 22.65 | 24.15 | 47.90 | 1.50 | 10.40 | 12.00 |
| RS50-3 | 5.09 | 28.40 | 30.20 | 59.90 | 2.00 | 13.00 | 15.00 |
| RS60-3 | 5.96 | 35.65 | 38.15 | 75.50 | 2.40 | 15.60 | 18.10 |
| RS80-3 | 7.94 | 45.60 | 48.50 | 96.90 | 3.20 | 20.80 | 24.10 |
| RS100-3 | 9.54 | 55.65 | 58.75 | 117.30 | 4.00 | 26.00 | 30.10 |
| RS120-3 | 11.11 | 70.40 | 74.40 | 148.60 | 4.80 | 31.20 | 36.20 |
| RS140-3 | 12.71 | 75.85 | 80.75 | 161.30 | 5.60 | 36.40 | 42.20 |
| RS160-3 | 14.29 | 90.45 | 95.45 | 190.70 | 6.40 | 41.60 | 48.20 |
| RS180-3 | 17.46 | 101.70 | 108.50 | 216.90 | 7.15 | 46.80 | 54.20 |
| RS200-3 | 19.85 | 110.75 | 116.45 | 233.00 | 8.00 | 52.00 | 60.30 |
| Tsubaki Chain No. | Transverse Pitch C |
ANSI Standard Min. Tensile Strength kN |
TSUBAKI Min. Tensile Strength kN |
Approx. Mass Kg/m |
Number of links per unit |
|---|---|---|---|---|---|
| RS25-3 | 6.40 | 10.50 | 12.40 | 0.42 | 160 |
| RS35-3 | 10.10 | 23.70 | 29.40 | 1.05 | 320 |
| RS40-3 | 14.40 | 41.70 | 53.00 | 1.90 | 240 |
| RS50-3 | 18.10 | 65.40 | 85.30 | 3.09 | 192 |
| RS60-3 | 22.80 | 93.90 | 121.0 | 4.54 | 160 |
| RS80-3 | 29.30 | 166.8 | 215.0 | 7.89 | 120 |
| RS100-3 | 35.80 | 261.0 | 321.0 | 11.77 | 96 |
| RS120-3 | 45.40 | 375.0 | 444.0 | 17.53 | 80 |
| RS140-3 | 48.90 | 510.0 | 580.0 | 22.20 | 68 |
| RS160-3 | 58.50 | 669.0 | 765.0 | 30.02 | 60 |
| RS180-3 | 65.80 | 843.0 | 1010.0 | 38.22 | 54 |
| RS200-3 | 71.60 | 1041.0 | 1280.0 | 49.02 | 48 |
- RS25 - RS35 are roller-less chain (only bush). The figure shown is the bush diameter.
- Connecting links are clip type for sizes up to RS60, and cotter type for
sizes RS80 to RS200.
RS240 connecting links are spring pin type. - When a single pitch offset link is used, please calculate a 35% reduction of the fatigue strength.
- Please contact us to get an updated stock information.
Quadruple Strand Details
| Tsubaki Chain No. | Pitch (p) | Roller Diameter | Inner Width | |
|---|---|---|---|---|
| mm | Inch | R | W | |
| RS40-4 | 12.70 | ½" | 7.92 | 7.95 |
| RS50-4 | 15.875 | ⅝" | 10.16 | 9.53 |
| RS60-4 | 19.05 | ¾" | 11.91 | 12.70 |
| RS80-4 | 25.40 | 1" | 15.88 | 15.88 |
| RS100-4 | 31.75 | 1¼" | 19.05 | 19.05 |
| RS120-4 | 38.10 | 1½" | 22.23 | 25.40 |
| Tsubaki Chain No. | Pin | Link Plate | |||||
|---|---|---|---|---|---|---|---|
| Diameter | Length | Offset Pin Length |
Thickness | Height | |||
| ∅D | L1 | L2 | L | T | h | H | |
| RS40-4 | 3.97 | 29.90 | 31.30 | 62.30 | 1.50 | 10.40 | 12.00 |
| RS50-4 | 5.09 | 37.45 | 39.25 | 78.10 | 2.00 | 13.00 | 15.00 |
| RS60-4 | 5.96 | 47.05 | 49.55 | 98.30 | 2.40 | 15.60 | 18.10 |
| RS80-4 | 7.94 | 60.25 | 63.25 | 126.30 | 3.20 | 20.80 | 24.10 |
| RS100-4 | 9.54 | 73.55 | 76.65 | 153.10 | 4.00 | 26.00 | 30.10 |
| RS120-4 | 11.11 | 93.10 | 97.10 | 194.00 | 4.80 | 31.20 | 36.20 |
| Tsubaki Chain No. | Transverse Pitch C |
ANSI Standard Min. Tensile Strength kN |
TSUBAKI Min. Tensile Strength kN |
Approx. Mass Kg/m |
Number of links per unit |
|---|---|---|---|---|---|
| RS40-4 | 14.40 | - | 70.6 | 2.53 | 240 |
| RS50-4 | 18.10 | - | 114.0 | 4.11 | 192 |
| RS60-4 | 22.80 | - | 161.0 | 6.04 | 160 |
| RS80-4 | 29.30 | - | 286.0 | 10.50 | 120 |
| RS100-4 | 35.80 | - | 428.0 | 15.70 | 96 |
| RS120-4 | 45.40 | - | 592.0 | 23.36 | 80 |
- RS25 - RS35 are rollerless chain (only bush). The figure shown is the bush diameter.
- Connecting links are clip type for sizes up to RS60, and cotter type for
sizes RS80 to RS200.
RS240 connecting links are spring pin type. - When a single pitch offset link is used, please calculate a 35% reduction of the fatigue strength.
- Please contact us to get an updated stock information.
- Download any of the G8 catalogs in PDF, here.