National 2040 UDBEL Drum Shaft ASSY , W/ 2 IN Grooving, W / Inpout Shaft, W / COC

General Drawworks Specifications (National 2040 UDBEL / NOV 2040-UDDEL):
• Drum Diameter: ~40 inches (~1016 mm)
• Drum Width / Length: ~72 inches (~1829 mm)
• Rated Line Pull / Hook Load: ~750,000 – 1,000,000 lbs depending on line rig-up
• Drilling Line Size: Typically 1 3/8″ – 1 5/8″ (~35 – 41 mm)
• Motor Power: Large DC/AC traction motors (often 1,500 – 2,000 HP per motor, dual-motor common)
• Gear Ratio: Approximately 12 – 15:1 (varies by build)
• Braking: Elmagco/air or water cooled primary brake; auxiliary static brake
• Compliance: Built to API-7K hoisting equipment standards