National Oil Seal HB44 Driveshaft Center Support Bearing

The National Oil Seal HB44 is a precision-engineered driveshaft center support bearing designed to maintain proper driveshaft alignment and reduce vibration in multi-piece driveshaft assemblies. This component serves as a critical mounting point for segmented driveshafts commonly found in trucks, SUVs, and rear-wheel-drive vehicles with longer wheelbases.

Key Features:

• High-quality bearing construction for extended service life and reliable performance
• Pre-lubricated design eliminates the need for additional maintenance
• Precision-molded rubber mounting cushion absorbs vibration and isolates driveline noise
• Steel bracket provides secure mounting to the vehicle chassis or crossmember
• Direct replacement for worn or failed original equipment center support bearings

Center support bearings are essential for preventing excessive driveshaft movement and ensuring smooth power transfer from the transmission to the rear axle. The HB44 helps eliminate common symptoms of worn center supports including vibration during acceleration, clunking sounds during gear changes, and excessive driveline noise.