DONGHUA ASA 80/H roller chain

DONGHUA ASA 80/H belongs to roller chain, part of our Power transmission range. Tell us how many you need by WhatsApp or email and we'll get back to you promptly with a quote for ASA 80/H and any equivalents.

The Donghua ASA 80/H is a roller chain built to the ASA series, the standard most widely used in the US market. It has a 25.4 mm (1 in) pitch, a 15.88 mm roller diameter and a 15.88 mm inner width. The 80/H size uses a wider inner width than the standard 80 chain, so it contacts the sprocket over a larger area. MR supplies this chain for general power transmission work.

When you read the code, the 80 tells you the chain size and the H tells you the inner width is wider than a standard 80. The pitch stays at 25.4 mm, so it lines up with sprockets cut for that pitch. The roller diameter and inner width are both 15.88 mm. That wider profile is what you want when the drive runs outdoors or in dusty conditions, because the rollers and bushings tolerate wear better over time.

Typical jobs include conveyors, elevators, agricultural equipment, bottling lines, packaging belts and low- to medium-speed drives. It also fits production lines that already run 25.4 mm pitch sprockets and need a replacement chain without swapping the sprockets. If the chain carries medium loads at moderate speed, this size gives you a practical balance between strength and weight.

Before installing, confirm the sprockets accept the 25.4 mm pitch and the 15.88 mm inner width. Check shaft alignment and set tension carefully: too tight and the rollers and bushings wear faster, too loose and the chain can jump teeth. Lubricate with chain oil or grease suited to the environment. If your drive sees impact loads, tell us and we can help you review whether a higher-strength chain is the better choice.

If you are matching an existing chain, send the ASA 80/H code or the pitch and inner width stamped on the chain. The number of teeth on each sprocket and the center distance also help. With those details we can suggest the same chain in another brand or an ASA series alternative with matching dimensions. A photo of the chain and sprocket works well if the code is worn off.

To request a quote, message us on WhatsApp and send the code DONGHUA-ASA-80-H or simply ASA 80/H. We reply with length options, and we can also handle multiple units or an assembled section. Send the code and we will take it from there.