Flange discoloration is seen in both the stainless steel and the standard Poly Chain sprocket lines. During the shrink fit process, the standard sprocket flanges (low carbon steel) usually turn black or brown. Conversely, the stainless steel flanges typically take on more of a pink hue.
Flange discoloration is normal and will not impact the performance of the product.
|Stainless Steel Sprocket|