The Diamond American Standard Roller Chain Spare (D20101) is built for demanding industrial environments where high load capacity and exceptional performance are critical. This component features a pitch of 31.75 mm (1¼ inch) and a width between inner plates of 18.90 mm (3/4 inch), making it perfect for power transmission systems in heavy-duty machinery.

Constructed with durability in mind, the chain includes a roller diameter of 19.05 mm, bearing pin diameter of 9.53 mm, and plate heights of 30.10 mm (inner) and 26.00 mm (outer). The 4.00 mm thick plates offer superior resistance to wear and fatigue, ensuring long service life even in high-load applications.

The D20101’s dimensions—41.10 mm width over bearing pin and 47.20 mm width over joint fasteners—provide enhanced fitment and structural strength. A projected bearing area of 2.59 sq.cm ensures efficient load distribution, while the average weight per metre of 3.85 kg reflects its solid construction. With a minimum tensile strength of 9030 Kgf, this chain is trusted in industries like mining, material handling, and heavy engineering.

Whether you’re upgrading or maintaining existing equipment, the D20101 delivers outstanding performance, reliability, and long-term value.

Key Specifications:

• Size (Pitch x WIP): 31.75 x 18.90 mm (1¼” x 3/4″)

• Pitch (P): 31.75 mm

• Width Between Inner Plates (W): 18.90 mm

• Roller Diameter (D): 19.05 mm (Max)

• Bearing Pin Diameter (d): 9.53 mm (Max)

• Plate Height: IP – 30.10 mm, OP – 26.00 mm (Max)

• Plate Thickness: IP – 4.00 mm, OP – 4.00 mm

• Width Over Bearing Pin (A): 41.10 mm (Max)

• Width Over Joint Fasteners (B): 47.20 mm (Max)

• Projected Bearing Area: 2.59 sq.cm

• Average Weight Per Metre: 3.85 kg

• Tensile Strength (Min): 9030 Kgf

D20101—the chain spare of choice for rugged durability and dependable power transfer.