Roller chain DONGHUA ASA 40/2

DONGHUA ASA 40/2 is a roller chain reference, within Power transmission. Request a quote for ASA 40/2 via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The ASA 40/2 chain is a double-strand roller chain that transmits motion between parallel shafts with high load capacity. It is used in gearboxes, conveyors and machines where two transmission lines need to be synchronized. DONGHUA is an official brand that MR carries, with the technical backing of more than 80 years in the industry.

This item is an ASA 40/2 roller chain from DONGHUA. Its pitch is 12.7 mm, the roller diameter is 7.95 mm and the inner width is 7.95 mm. The 40/2 designation indicates double strand: two simplex chains joined by common pins, which doubles the tensile capacity compared to a single-strand chain of the same pitch. It is manufactured under the ASA/ANSI standard, with carbon steel plates and rollers.

Typical applications for the ASA 40/2 include power transmissions in machine tools, belt and roller conveyors, mixers, compressors and packaging equipment. It is also used in gearboxes and gear cases where axial space is limited and a single chain line is required to transmit more torque. It is common in installations where two simplex chains are replaced by one double-strand chain to simplify assembly.

To correctly select the ASA 40/2, take into account the power to transmit, the sprocket speed and the number of teeth. The chain must mesh with sprockets compatible with 12.7 mm pitch and double strand. Check shaft alignment and proper tension: a chain that is too tight accelerates wear of rollers and bushings; too loose, it skips. Lubricate according to the operating conditions and check elongation periodically.

If you need an adjacent size or an equivalent, send us the full part number and the pitch, inner width and roller diameter measurements. With that data we can offer you an alternative from the same series or another brand we carry. We can also advise you if your application requires a simplex, triplex or different-pitch chain. The idea is that you don't buy blindly: first we confirm compatibility.

To request a quote for the DONGHUA ASA 40/2 chain, send the part number DONGHUA-ASA-40-2 by WhatsApp to MR Accesorios Industriales. We'll reply with purchasing options. If you have doubts about the designation, send us a photo of the old chain or measurements taken with a caliper. This way we avoid errors and give you the right part.