40-2 roller chain is a double row ANSI standard roller chain. Nitro #40 double roller chain is an high quality roller chain that is manufactured for strength and longevity. Our double strand roller chains are manufactured from a high quality carbon steel. Each individual chain component is heat treated to increase the overall strength of the chain. Plates and rollers are shot peened to improve the fatigue resistance and help prevent stress fractures.
40-2 Roller Chain Dimensions
Inner Width (b1):5/16''
Roller Diameter (d1):0.312''
Overall Width (L):1.220''
Pin Diameter (d2):0.156''
Link Plate Height (h2):0.469''
Link Plate Thickness (T):0.060''
Transverse Pitch (Pt):0.566''
Average Tensile Strength:8,157 lbs
Max Working Load:1,389 lbs
No. Of Pitches/Links Per 10 Feet:240
No. Of Connecting Links Included:1
Chain Material:Carbon/Alloy Steel
Industry Standard:ANSI B29.1
Manufactured with solid cold-forged rollers for smoother contact with the sprocket teeth and to resist distorting under heavy loads.
Built with solid cold-forged bushings for superior wear resistance that results in service life 2x to 3x greater than split bushing chains. See the solid bushing advantage.
After assembly, all Nitro chains are pre-loaded to a minimum load required by the industry standard. Pre-loading seats the chain joint that eliminates any initial elongation in a new chain.
Pre-lubricated in a special formulated lubricant through a hot-dipping process. This process is critical to ensure the lubricant penetrates and thoroughly coats the internals of the chain. The special lubricant offers better retention (less spin-out) and improved wear protection over chains that are cold-dipped.
Advanced heat treatment is applied to achieve optimum hardness for strength and wear resistance.
To combat fatigue failure from repetitive loads & wear, a compressive stress layer is added through shot peening.
Product Care & Maintenance
Maintenance and lubrication is crucial in the overall performance and life span of roller chain. Proper lubrication will reduce abrasion, chain wear, friction, noise and keep chains running cooler at higher RPM's. You can download the Nitro Roller Chain Care below.