Multi Wing - 4ZG/PAG Fan Blade
Impeller Diameter Tolerance: h14 according to DS/EN 20286-2 Bore Tolerance: H7 for bores up to ø48mm,G7 for bores from ø55mm & H8 for flange bores according to DS/EN 20286-2 Keyway Tolerance: Metric: Js9 according to BS 4235-1 (table 1&3); Inch: according to BS 46-1 (table 2) Balancing Tolerance: G 6,3 single-plane at 950 RPM according to ISO21940-11 All impellers are balanced with exception of 6,8 & 10 bladed type H with plastic blades Bolts & Nuts: Standard strength category is 8.8-Zn if no special requirement.