DONGHUA ASA 140/3 roller chain

DONGHUA ASA 140/3 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 140/3 and any equivalents.

For drives that call for a triple-strand roller chain, the DONGHUA ASA 140/3 is a standard ASA series component. It has a 44.45 mm pitch, a 25.4 mm roller diameter and a 25.4 mm inner width. The 140/3 code identifies both the size and the three-strand construction, which is how maintenance teams match it to existing sprockets and confirm it will fit the space available on the drive.

The ASA 140/3 designation follows the American roller chain standard. The number 140 corresponds to the 44.45 mm pitch, while the /3 suffix shows that the chain runs three strands side by side. That construction is chosen when the torque to be transmitted is high and the width allowed for the chain is limited. Because the chain meets the ASA/ANSI standard, it interchanges with sprockets and other components made to the same standard.

You will find this chain in primary drives in mills, bucket elevators, drag conveyors, rotary kiln drives and other heavy machinery. In these applications the load is shared across the three strands, which is why the chain is often specified for equipment where a single-strand chain would not be practical. When reviewing a replacement, note the pitch, roller diameter and inner width: 44.45 mm, 25.4 mm and 25.4 mm respectively.

During installation, verify that the sprockets have the correct pitch and the right number of teeth for the required ratio. Shaft alignment matters, and so does tension: a chain that is too tight wears rollers and bushings faster, while one that is too loose can jump off the sprocket. Lubricate with oil or grease suited to the speed and operating temperature. For critical drives, check the manufacturer's data sheet to confirm service factors and estimated service life.

If you are looking for an equivalent, send the complete code ASA 140/3 or the pitch and number of strands your equipment needs. We can also help identify the chain from a sample or from the sprocket dimensions. MR Industrial Accessories supplies DONGHUA chain and can suggest alternatives from the same series or with similar characteristics.

To request a quote, send the part number via WhatsApp or email. Our team replies promptly and can assist with selection or technical questions about the designation.