#80 Roller Chain Idler Sprocket 12 Tooth 3/4" Bore 80BB12H-3/4

The 80BB12H 3/4 idler sprocket is designed for use with #80 roller chain. Here are the key specifications:

• Bore Diameter: 3/4 inch (0.7500 in)
• Chain Number: #80
• Teeth: 12
• Material: Hardened steel
• Bearing Type: Ball bearing
• Chain Pitch: 1 inch
• Hub Diameter: 2.2500 inches

This sprocket serves as an idler, which means it can change the direction of chain motion or adjust chain tension. Martin idlers are known for their smooth operation and durability. The hardened steel teeth ensure maximum resistance to wear, and the ball bearing provides efficient rotation. Whether you’re maintaining existing machinery or creating custom idlers, the 80BB12H 3/4 sprocket is a reliable choice.