Roller chain EMMAR 20-B2

EMMAR 20-B2 is a roller chain reference, within Power transmission. Request a quote for 20-B2 via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The 20-B2 chain is a double-strand roller chain according to European standard BS, with a pitch of 1 1/4 inches. It is used to transmit power between parallel shafts when more load capacity is needed than a single-strand chain of the same pitch. At MR Accesorios Industriales we sell it for replacement and new projects; if you need to confirm dimensions or equivalents, send us the code on WhatsApp and we'll advise you.

This item is a double-strand roller chain from the BS series, identified as 20-B2. Its rollers have a diameter of 19.05 mm and the inner width between plates is 19.56 mm. The 20-B2 designation corresponds to a pitch of 1 1/4 inches and two rows of rollers, which gives it greater tensile strength than an equivalent single-strand chain. It is manufactured to European standard, so its dimensions are not interchangeable with ANSI chains of the same nominal pitch.

Typical applications include power transmission in industrial machinery, conveyors, mills, mixers and lifting equipment. It is also used in gearboxes and transmission cases where space is limited and high load capacity is required. Because it is double-strand, it is common in drives that work with high torque or moderate speeds, and in replacements of single-strand chains when more robustness is needed without changing the pitch.

To install a 20-B2 chain, check that the sprockets are compatible with the chain pitch and inner width. Shaft alignment and proper tension are key to avoid premature wear. If the original drive used a single-strand chain, evaluate whether the width of the double-strand chain fits in the available space. Lubricate according to the operating regime and check elongation periodically to schedule replacement.

If you need a neighboring size or an equivalent, the most practical thing is to send us the code stamped on the chain or the main dimensions: pitch, roller diameter and inner width. With that data we can look for a compatible alternative within the BS line or suggest an ANSI chain if the pitch matches. We can also quote sprockets and other transmission components to complete the assembly.

To proceed with your purchase, send the code 20-B2 on WhatsApp to MR Accesorios Industriales. We'll quote you and, if needed, review the dimensions together to ensure the chain is the right one for your equipment. We can also advise you on installation and proper lubrication for your application.