... bore diameter is 15mm Product photos:axial fan blade 590x180 for 5HP air source heatpump plastic fans ... 52) 52mm – 700mm DIAMETER No.Product NameSizeDiameterHeightRotationBore1Axial fan bladeØ52x1552mm15mmCW,CCW5mm,6mm2Ø80x2180mm21mmCW,CCW3.2mm,5mm3Ø90x1890mm18mmCW,CCW3. ... Catalogue and samples are provided under requirement. axial fan blade 590x180 for 5HP air source heatpump plastic fans impeller ...