Standard Roller Chain #40 – 1/2″

Roller chain is made up of carbon steel in a series of short cylindrical rollers held together by side links. Each size of chain differs by ANSI (American National Standards Institute) standards 1/8″ increasing with the size of the chain. Therefore a #40 Roller Chain has a 1/2″ pitch.

#40 Roller Chain Dimensions:

• ANSI Chain #: 40
• Pitch (P): 1/2″
• Roller Width (b1): 5/16″
• Roller Diameter (d1): 0.312″
• Overall Width: (L): 0.653″
• Pin Diameter (d2): 0.156″
• Link Plate Height (h2): 0.469″
• Link Plate Thickness (T): 0.060″
• Average Tensile Strength (LBS): 3,900
• Of Pitches/Links Per 10 Feet: 240

Interchange Numbers:

• 40-1R
• RS40
• RS40-1R
• 40-1
• 40 Roller Chain
• 40-1R 10FT
• #40 Series Chain
• Koch – 7440100
• Koch -TRC40-MD
• McMaster – 6261K173