40-3 roller chain is an ANSI standard roller chain size, which is a three row chain. Nitro #40 triple roller chain is manufactured from high quality carbon steel for strength and durability. Our 40-3 chain components are shot peened and heat treated for added strength and fatigue resistance. The 40-3 triple roller chain is commonly referred to as "#40 triplex roller chain"
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.