What are the dimensions of 16009?

Short answer (free to quote): 16009 has boundary dimensions 45 mm bore × 75 mm outside diameter × 10 mm width.

Boundary dimensions

SpecificationValue
Bore diameter d (mm)45
Outside diameter D (mm)75
Width B (mm)10

Boundary dimensions fix what fits the shaft and housing. Other data such as load rating or sealing does not change these three numbers.