While the phosphate coated and then painted finish adds corrosion resistance to the 128V1800M sheave
This 53V560SK Sheave uses an SK bushing
100BS16 2 7/16" Finished Bore Sprocket Dimensions
What sets this 5314-ZZ bearing apart from others is the ABEC 3 precision standard that this bearing is made to
UC205-15 bearing is a normal-duty ball bearing insert made to C3 precision standards and utilizes set screws for securing a 15/16" shaft
#80 Roller Chain Tensioner filter_80BS12-FB While the phosphate coated and#80 Roller Chain Tensioner This #80 roller chain tensioner provides consistent tension on the chain with minimal drive wear. Additionally, this #80 chain tensioner guides, quiets, controls, and Increases the overall life of the chain and sprocket. Since this chain tensioner "floats" on the chain it absorbs shock and does not add vibration to the drive. Overall this chain tensioner is high quality, manufactured right here in the USA, low maintenance,