Roller chain DONGHUA ASA 40/3

DONGHUA ASA 40/3 is a roller chain reference, within Power transmission. Request a quote for ASA 40/3 via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The ASA 40/3 chain is a roller chain with a 12.7 mm (half-inch) pitch, a roller diameter of 7.95 mm and an inside width of 7.95 mm. It is used to transmit motion between parallel shafts in industrial equipment, with the advantage of a standardized pitch that facilitates replacement and combination with gears and sprockets of the same series. DONGHUA is an official brand that MR carries, with technical support to select the right chain for the application.

This item is a roller chain of the ASA series, designation ASA 40/3. Its main attributes are: 12.7 mm pitch, 7.95 mm roller diameter and 7.95 mm inside width. The 40/3 designation indicates that it is a size 40 (half-inch) pitch chain with three strands, which allows it to transmit more power than a single-strand chain of the same pitch. DONGHUA is an official brand that MR carries, so the chain joins the power transmission catalog with traceability of origin.

Typical applications for an ASA 40/3 chain include power drives in machine tools, chain conveyors, packaging equipment, mixers and drive systems where synchronization between shafts is required. It is also used in the food, chemical and process industries, provided that the material and lubrication are compatible with the environment. Because of its three-strand construction, it is common in equipment that needs to absorb high loads without increasing the chain pitch.

To install an ASA 40/3 chain, check that the sprockets are of the same series and pitch, and that they are aligned within the tolerance recommended by the manufacturer. Tension must be correct: a chain that is too tight accelerates wear on rollers and bushings, and one that is too loose can jump off the sprocket. It is important to lubricate according to speed and working load, and to check wear periodically by measuring elongation over a section of several pitches.

If you need an equivalent chain or a nearby size, the most practical thing is to send us the complete part number, the designation or a photo of the equipment's nameplate. With that data we can confirm whether the ASA 40/3 is the right option or whether it is better to evaluate a different number of strands, a different pitch or a chain with special characteristics. We can also advise you on compatible sprockets and lubricants for the same installation.

To request a quote for the DONGHUA ASA 40/3 chain, send us the part number via WhatsApp to MR Accesorios Industriales. We will reply with the alternatives that best fit your equipment. If you have questions about the designation, write to us anyway: with the system data we can guide you.