| | | | | 1 | | | Impeller |
| | | | | 2 | | | Blades |
| | | | | 3 | | | Blade tip |
| | | | | 4 | | | Blade inlet edge |
| | | | | 5 | | | Blade leading edge |
| | | | | 6 | | | Blade trailing edge |
| | | | | 7 | | | Blade root |
| | | | | 8 | | | Hub |
| | | | | 9 | | | Hub boss |
| | | | | 10 | | | Hub disc |
| | | | | 11 | | | Hub rim |
| | | | | 12 | | | Hub spider |
| | | | | 13 | | | Impeller backplate |
| | | | | 14 | | | lmpeller centreplate |
| | | | | 15 | | | Impeller endplate |
| | | | | 16 | | | Impeller shroud |
| | | | | 17 | | | Impeller intermediate shroud |
| | | | | 18 | | | Fan casing |
| | | | | 19 | | | ScroIl plate |
| | | | | 20 | | | Cut-off |
| | | | | 21 | | | Extended cut-off |
| | | | | 22 | | | Casing inlet sideplate |
| | | | | 23 | | | Casing backplate |
| | | | | 24 | | | Casing coverplate |
| | | | | 25 | | | Inlet flange |
| | | | | 26 | | | Inlet spigot |
| | | | | 27 | | | Shaped inlet |
| | | | | 28 | | | Inlet box |
| | | | | 29 | | | Outlet flange |
| | | | | 30 | | | Outlet spigot |
| | | | | 31 | | | Outlet transformer |
| | | | | 32 | | | Outlet expander |
| | | | | 33 | | | Outlet reducer |
| | | | | 34 | | | Interconnecting duct |
| | | | | 35 | | | Centre fairing |
| | | | | 36 | | | Upstream centre fairing |
| | | | | 37 | | | Downstream centre fairing |
| | | | | 38 | | | Fairing supports |
| | | | | 39 | | | Guide vanes (a set) (Guide vane) |
| | | | | 40 | | | Upstream guide vanes (a set) (Upstream guide vane) |
| | | | | 41 | | | Downstream guide vanes(a set) (Downstream guide vane) |
| | | | | 42 | | | Casing stiffeners |
| | | | | 43 | | | Base angles |
| | | | | 44 | | | Foot or feet |
| | | | | 45 | | | Casing drain |
| | | | | 46 | | | Access or inspection door |
| | | | | 47 | | | Mounting ring (wall flange) |
| | | | | 48 | | | Mounting lugs |
| | | | | 49 | | | Diaphragm plate |
| | | | | 50 | | | Motor stool |
| | | | | 51 | | | Motor bracket |
| | | | | 52 | | | Motor arms |
| | | | | 53 | | | Motor supports |
| | | | | 54 | | | Bearing pedestal |
| | | | | 55 | | | Bearing supports |
| | | | | 56 | | | Bearing bracket |
| | | | | 57 | | | Bearing stool |
| | | | | 58 | | | Baseframe |
| | | | | 59 | | | Anti-vibration mountings |
| | | | | 60 | | | Combination baseplate |
| | | | | 61 | | | Motor or other prime mover |
| | | | | 62 | | | Bearings |
| | | | | 63 | | | Shaft |
| | | | | 64 | | | Shaft extension |
| | | | | 65 | | | Shaft seal |
| | | | | 66 | | | Cooling disc (or impeller) |
| | | | | 67 | | | Fan pulley |
| | | | | 68 | | | Motor pulley |
| | | | | 69 | | | Drive belt(s) |
| | | | | 70 | | | Coupling |
| | | | | 71 | | | Inlet guard |
| | | | | 72 | | | Motor-side guard |
| | | | | 73 | | | Impeller-side guard |
| | | | | 74 | | | Shaft guard |
| | | | | 75 | | | Drive guard |
| | | | | 76 | | | Coupling guard |
| | | | | 77 | | | Cooling disc (or cooling impeller) guard |
| | | | | 78 | | | lnlet vane control |
| | | | | 79 | | | Dimension |
| | | | | 80 | | | Fan Inlet |
| | | | | 81 | | | Fan Outlet |
| | | | | 82 | | | Impeller Tip Diameter |
| | | | | 83 | | | Impeller Tip Clearance |
| | | | | 84 | | | Impeller Inlet Clearance |
