UBD/UDD SERIES (Up Blast Tube Axial Fans)
UBD-12,15,18,21,24,30,36,40,42,48 are all belt drive models that have fan bearings that are factory lubricated for extended service. UDD-12,15,18,21,24,30,36,40,42,48 are all dirct drive models.
UBD-12,15,18,21,24,30,36,40,42,48 are all belt drive models that have fan bearings that are factory lubricated for extended service. UDD-12,15,18,21,24,30,36,40,42,48 are all dirct drive models.