This #50 roller chain is manufactured 50 roller chain relative to American National Standards Institute (ANSI) B29.1 standards and has been produced to the same dimensions because the beginning of ANSI/ ASA in 1930. Though dimensionally the specific same you can expect three different quality degrees of the #50 roller chain that goes above and beyond the standard strength and performance smart.
Economy Plus series #50 roller chain uses heat-treated precision components and features a solid roller style for improved performance.
General Duty Plus 
series roller chain is actually the same except runs on the higher-heat treat thus making it better for high-speed and higher load applications.
Premier Series roller chain uses the highest-strength parts that have been heat-treated, shot-peened, and hardened to a maximum. In addition they implement a solid bushing solid roller (SBR) design and make use of a premium-grade lubricant for the utmost durability, strength, and working life.
We stock an array of configurations for #50 roller chain which includes anti-corrosive, attachment chains, and specialized series.