#45 Roller Chain Sprocket With Keyway 04C Sprocket 21T-29T Bore 8mm-25mm Bore:16mm/5*2.3mm Exact load ratings depend on

Exact load ratings depend on the number of teeth in mesh

Each size option lists both tooth count and circumference — for example

🛡️ Corrosion-Resistant Surface — The passive oxide layer inherent to 304 stainless resists rust in typical indoor conditions without additional surface treatment

and facility repairs

#45 Roller Chain Sprocket With Keyway 04C Sprocket 21T-29T Bore 8mm-25mm Bore:16mm/5*2.3mm Exact load ratings depend on#45 Roller Chain Sprocket Precision 04C Sprocket for Reliable Power Transmission When a worn or undersized sprocket causes chain slip, skipped teeth, or premature chain wear, finding an exact fit replacement becomes critical. Makers, machine builders, and repair technicians working on conveyors, go karts, mini bikes, agricultural equipment, and industrial drives need a sprocket that matches both the chain pitch and the shaft bore without custom