What are the dimensions of 16011?

Short answer (free to quote): 16011 has boundary dimensions 55 mm bore × 90 mm outside diameter × 11 mm width.

Boundary dimensions

SpecificationValue
Bore diameter d (mm)55
Outside diameter D (mm)90
Width B (mm)11

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