1480-20 – Center Support Bearing – Volvo Application – 1.772″ ID – 2.750″ Center Bearing To Base

1480-20 -- 1480-Series Center Support Bearing, Volvo, 2.750 Inch Height

The 1480-20 and 1480-30 share the same 1.772-inch inner bore and 1480-series rating, but differ by center-to-base height: the 1480-20 measures 2.750 inches versus 2.375 inches on the 1480-30. That 0.375-inch difference is enough to alter the driveshaft working angle on Volvo trucks, so fitting the wrong height variant will introduce vibration even though the bearing ID is correct. Always measure the original center-to-base height before ordering a replacement.

The 1480 series is the next step up from 1350/1410 in torque capacity, with a 1.375-inch cap diameter on the U-joints versus 1.188 inches. The corresponding increase in stub shaft diameter is why the 1480-20 uses a 1.772-inch bore -- do not confuse this with the 1.574-inch bore used on 1350/1410 applications. Volvo medium and heavy trucks that route the driveshaft through a floor tunnel typically run 1480-series components for the torque margin.

Key dimensions to confirm before ordering:

• Stub shaft OD -- must match 1.772 in bore within close tolerance
• Center-to-base height -- measure original unit; 2.750 in is specific to the 1480-20
• Bracket bolt pattern -- compare hole spacing to original bracket

Find related units in the full center support bearing catalog.