What are the specifications of Grade 80 chain?
2 Answers
Here is an introduction to Grade 80 lifting chains: 1. Introduction: Grade 80 lifting chains are essential lifting devices for heavy object hoisting. They are produced using Germany's advanced assembly line equipment and high-quality alloy steel materials (such as manganese steel), with strict quality control throughout the entire process to ensure the chains meet the international Grade 80 standard. 2. Related standards: Lifting chain surface treatments: polishing, blackening, painting, plastic coating, and electroplating. Lifting chain manufacturing standards: ISO3077, EN818-2, AS2321. Lifting chain safety assurance: 4 times safety factor, 4 times test load.
As a long-time car enthusiast with years of repair experience, I recall that the 80 chain is a common roller chain specification in transmission systems, typically with a pitch of 1 inch (approximately 25.4 mm), a roller diameter around 0.625 inches (about 15.88 mm), and an inner chain width of roughly 14.63 mm. In practical applications, it is often used in motorcycle or vintage car transmission chains, such as those commonly found in Harley-Davidson models. If you notice chain wear during maintenance, check these measurements to ensure they match, as deviations can affect driving smoothness. When replacing a chain, I always remind friends to measure the pitch accurately: use a ruler to measure the distance between consecutive pin centers, preferably calibrated at a professional shop. Safety first—never mix sizes casually, as this can lead to transmission system vibrations or even chain breakage accidents. Regular maintenance is key; it's generally recommended to inspect chain tension and lubrication annually to avoid issues during wet or rainy conditions.
