About #140H-3 Heavy Duty Roller Chain
#140H-3 triplex heavy roller chain complies with ANSI B29.1 standard with 44.45mm pitch. Different from standard #140-3 chain, it adopts reinforced thicker link plates to boost fatigue strength and shock load capacity for harsh high-stress working scenarios.
All alloy steel pins, seamless bushings and solid rollers are carburized and shot-peened, delivering high tensile strength, low elongation and outstanding wear resistance. Its three-row structure provides triple load capacity compared to simplex #140H chain.
Perfect for mining, metallurgy, heavy port conveyors and construction machinery. Carbon steel versions are in stock; stainless steel and attachment chains are customizable. Matches dedicated #140H triple sprockets, supplied with full connecting links for global export.
ANSI #140H-3 Heavy Duty Roller Chains Dimension
Pitch (P): 44.45mm
Roller diameter (d1): 25.4mm
Width between inner plates (b1): 25.22mm
Pin diameter (d2): 12.7mm
Pin length (L): 162mm
Pin length (Lc): 166.2mm
Inner plate depth (h2): 41mm
Plate thickness (T): 6.4mm
Transverse pitch (Pt）: 52.2mm
