Martin Sprocket & Gear 2080B12-1 Roller Chain Sprocket

The Martin Sprocket & Gear 2080B12-1 Roller Chain Sprocket is a precision‑machined 12‑tooth Type B (single‑hub) sprocket designed for ANSI No. 80 roller chains, delivering dependable torque transfer in industrial power transmission systems. It features a 1.000‑inch pitch, an 11/16‑inch bore, and steel construction with a precision‑machined tooth profile for smooth engagement and reduced wear in continuous‑duty conveyors, grain handling equipment, packaging machinery, and other manufacturing or automation applications that rely on reliable No. 80 chain drives. The bore is bored for shaft installation and the hub is single‑sided to suit simple mounting in bi‑directional operation environments. Maintenance teams and system integrators often choose this part for replacement, repair, and drive system upgrades to maintain efficient power transmission and minimize downtime. Common replacements include Martin 80B12-11/16 Type B, Browning 80B12-11/16 Type B, and TB Wood's 80B12-11/16 Type B, underscoring its compatibility with standard ANSI No. 80 chain drives across brands.