Nitro #50 attachment roller chain with A1 attachments is a high strength industrial grade roller chain The A1 attachments are spaced every 4th pitch (2.500") on the outer link plates.
Maintenance and lubrication is crucial in the overall performance and life span of roller chain. Proper lubrication will reduce abrasion, chain wear, friction, noise and keep chains running cooler at higher RPM's. You can download the Nitro Roller Chain Care below.
Different chain companies may use different identifications for attachments. Below is a quick reference chart for attachment link interchangeability to the Nitro™ attachments.