#120-2 is ANSI B29.1 standard double-strand roller chain with a 38.1mm pitch, engineered for heavy-duty power transmission scenarios. Constructed from high-grade alloy steel with strict quenching and tempering treatment, this chain features excellent tensile strength, wear resistance and anti-fatigue property.
Precision machined pins, bushes and rollers ensure smooth meshing with matched sprockets, lowering operation friction and elongation rate under continuous heavy loads. Each chain is pre-stretched before shipment for stable dimension and extended service lifespan.
It is commonly used in large conveyors, mining machinery, agricultural equipment and heavy industrial transmission drives. Stainless steel and heavy-duty customized options are available for corrosive or severe working environments.
ANSI #120-2 Roller Chains Dimension
Pitch (P): 38.1mm
Roller diameter (d1): 22.23mm
Width between inner plates (b1): 25.22mm
Pin diameter (d2): 11.1mm
Pin length (L): 95.8mm
Pin length (Lc): 99.7mm
Inner plate depth (h2): 35.7mm
Plate thickness (T): 4.8mm
Transverse pitch (Pt): 45.44mm
