Description:

This 3/4 inch Bore Brake Drum Sprocket Hub provides a secure and versatile mounting solution for rear axle sprockets and brake drums.

• Bore Size: 3/4 inch
• Outer Diameter: 4 inches
• Keyway: 3/16 inch
• Mounting: 2 Set Screws
• Chain Compatibility: 60T and 72T #35 Chain or 48T, 54T, and 60T #40, #41, and #420 Chain
• Bolt Hole Pattern 1: (4) 1/4 inch Bolt Holes on a 3.228 inch Bolt Hole Circle
• Bolt Hole Pattern 2: (4) 3/8 inch Bolt Holes on a 2 7/8 inch Bolt Hole Circle
• Application: Used for 4 inch and 4.5 inch brake drums or rear axle sprockets