![[Tsubaki] — RS80-SUP-1 Super Chain Heavy-Duty Roller Chain](https://prosourcemro.com/wp-content/uploads/2026/05/001-266.png)
Roller Chains
TSUBAKI
[Tsubaki] — RS80-SUP-1 Super Chain Heavy-Duty Roller Chain
Family ID: TSB-RS80-SUP-1
Tsubaki Super Chain — heavy-duty roller chain achieving up to 40% higher maximum allowable load than standard RS roller chain of the same size. Thicker and wider plates with optimized mid-section curvature for compact design without sacrificing strength. Pin fatigue strength approx. 40% higher than standard RS chain. Excellent shock absorption. Can substitute one size down from standard RS chain. Base dimensions (pitch, roller dia, inner link width) identical to RS roller chain. Available in single strand; M-type and F-type connecting links.
5 product codes available in this family
Product Codes & Specifications
| Product Code | Description | Brand | Spec | ||
|---|---|---|---|---|---|
| RS80-SUP-1-M-U | M-Type Unit Link | Tsubaki | Series: RS80-SUP | Pitch: 25.40 mm | Roller Diameter: 15.88 mm | Inner Width: 15.75 mm | Strands: 1 | Max Load: +40% vs Standard RS80 | Pin Fatigue Strength: +40% vs Standard RS | Plate: Thicker & Wider (optimized curvature) | Size Down Capable: Yes (1 size smaller than RS equivalent) | Standard: JIS B 1801 (same base dims as RS80) | Application: Heavy-duty power transmission, high-shock machinery, compact drive design | Link Type: M-Type Unit Link | ||
| RS80-SUP-1-F-U | F-Type Unit Link | Tsubaki | Series: RS80-SUP | Pitch: 25.40 mm | Roller Diameter: 15.88 mm | Inner Width: 15.75 mm | Strands: 1 | Max Load: +40% vs Standard RS80 | Pin Fatigue Strength: +40% vs Standard RS | Plate: Thicker & Wider (optimized curvature) | Size Down Capable: Yes (1 size smaller than RS equivalent) | Standard: JIS B 1801 (same base dims as RS80) | Application: Heavy-duty power transmission, high-shock machinery, compact drive design | Link Type: F-Type Unit Link | ||
| RS80-SUP-1-MJL | M-Type Connecting Link (JL) | Tsubaki | Series: RS80-SUP | Pitch: 25.40 mm | Roller Diameter: 15.88 mm | Inner Width: 15.75 mm | Strands: 1 | Max Load: +40% vs Standard RS80 | Pin Fatigue Strength: +40% vs Standard RS | Plate: Thicker & Wider (optimized curvature) | Size Down Capable: Yes (1 size smaller than RS equivalent) | Standard: JIS B 1801 (same base dims as RS80) | Application: Heavy-duty power transmission, high-shock machinery, compact drive design | Link Type: M-Type Connecting Link (JL) | ||
| RS80-SUP-1-FJL | F-Type Connecting Link (JL) | Tsubaki | Series: RS80-SUP | Pitch: 25.40 mm | Roller Diameter: 15.88 mm | Inner Width: 15.75 mm | Strands: 1 | Max Load: +40% vs Standard RS80 | Pin Fatigue Strength: +40% vs Standard RS | Plate: Thicker & Wider (optimized curvature) | Size Down Capable: Yes (1 size smaller than RS equivalent) | Standard: JIS B 1801 (same base dims as RS80) | Application: Heavy-duty power transmission, high-shock machinery, compact drive design | Link Type: F-Type Connecting Link (JL) | ||
| RS80-SUP-1-4POL | Press-Fit Offset Link (4POL) | Tsubaki | Series: RS80-SUP | Pitch: 25.40 mm | Roller Diameter: 15.88 mm | Inner Width: 15.75 mm | Strands: 1 | Max Load: +40% vs Standard RS80 | Pin Fatigue Strength: +40% vs Standard RS | Plate: Thicker & Wider (optimized curvature) | Size Down Capable: Yes (1 size smaller than RS equivalent) | Standard: JIS B 1801 (same base dims as RS80) | Application: Heavy-duty power transmission, high-shock machinery, compact drive design | Link Type: Press-Fit Offset Link (4POL) |
