1,486 Products Indexed
Roller Chain — ANSI Standard & Heavy-Duty Specifications
Search roller chain from Tsubaki, Renold, Rexnord, Diamond Chain, Iwis, and Daido. Filter by ANSI chain number, pitch, strand count, and chain type for power transmission and conveyor applications.
Key Specification Fields
ANSI Chain Number
25, 35, 40, 50, 60, 80, 100, 120, 140, 160, 180, 200, 240
Pitch (inches)
0.25" to 3.0" — determines sprocket compatibility
Strands
Single, Double, Triple, or Quadruple strand for higher power ratings
Chain Type
Standard, Heavy Duty (H-series), Corrosion Resistant, Nickel Plated, Stainless
Ultimate Tensile Strength (lbs)
Breaking load — design loads are typically 1/6 to 1/10 of this value
Length
Available in 10-foot rolls, 50-link, or custom cut lengths
Common Applications
- Drive systems (motor to shaft)
- Conveyor systems
- Hoists and lifting
- Packaging and printing
- Agricultural equipment
- Motorcycles and bicycles
Frequently Asked Questions
How do I read ANSI roller chain numbers?
The ANSI chain number encodes the pitch: divide the last digit by 8 to get pitch in eighths of an inch. ANSI 40 chain has a 4/8 = 1/2" pitch. The 'H' suffix indicates heavy series (thicker side plates). A leading zero (e.g., 04B) indicates metric chain. Double-strand chains add '-2' (e.g., 40-2).
How do I select the right roller chain size?
Calculate the design power (HP × service factor), then use a chain selection chart to find the ANSI number based on design HP and sprocket speed (RPM). Verify the selected chain's ultimate tensile strength provides adequate safety margin, and confirm sprocket tooth count and shaft center distance are compatible.