1. Transmission Chains
1.4.3 Stainless Steel Roller Chain (SS) Transmission: Corrosive environment. Manufacture of foods, chemicals, and medicines
Application Example All parts are made of austenitic 304 stainless steel.
The material composition is: Carbon (C): less than 0.08% Chromium (Cr): 18.00 to 20.00% Nickel (Ni): 8.00 to 10.50%
SS Roller Chains are the most commonly used environmentally resistant chains for the manufacture of foods, chemicals, medicines, or transmission in water. They are also used in indoor conditions where rust is a problem. (See Figure 1.12.)
Figure 1.12 Stainless Steel Chain
Construction and Features The construction and sizes of SS Roller Chains are the same as ANSI Roller Chains. Each part is formed from 304 stainless steel by cold working process- es, such as press processing and machining. The pins are assembled to the outer plates and the bushings to the inner plates. Neither solution annealing nor passivating treatment are done on SS Roller Chains. SS Roller Chains have the following features: • Attractive appearance of glossy stainless steel. • Exceptional corrosion resistance. But in certain highly corrosive conditions, stress-corrosion cracking may occur.
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