Tuesday, February 11, 2014
428 Motorcycle Chain Specs
Motorcycles use chains to move power from the transmission to the wheels. Roller chains have two types of links. The inner link had two plates held together by two pins with sleeves covering the pins. Two rollers ride the bushings and touch the sprocket of the rear wheel. The outer link is simply a connector plate holding two inner links together. The 428 chain keeps power flowing on modern motorcycles and motorcycle-based small vehicles, such as ATVs.
Dimensions of the Links
The inside width is the distance between the inside plates. Inside width of the 428 measures 7.95 mm. Pitch is the distance between the centers of the two inner link pins and is 12.700 mm on the 428. The roller diameter for the 428 is 8.51 mm. The pins inside the sleeves inside the rollers of the 428 are 4.45 mm thick and 16.7 mm long. The plates holding the inner links together are 1.60 mm thick.
The Strength of the Chain
The American National Standards Institute tested the 428 chain for tensile strength and found that it takes a weight of 3,125 pounds to break it. ANSI recommends that the load on the 428 chain never exceed 810 pounds in continuous use.
The Weight of the Chain
The 428 chain weighs 71 kg per meter of chain.
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