Fin Geometry


Fin Number [Quadrant]	The number of fins on 1/4 of the housing periphery in a axial finned machine. Used when Fin Input Options = Fin Number & Spacing

The Fin Spacing [Fin Base] is also used to define the dimensions of the fins on the housing. The Corner Cutout [%] is automatically adjusted to accommodate the fins in this case.

In a radially finned housing the fin number is not specified and the Fin Spacing [Fin Base], Fin Thickness and the axial length of the machine is used to calculate the number of fins that can be fitted to the housing.

Fin extension

Amount by which fin extends beyond Housing Diameter.

Fin thickness

Use average thickness if fins are tapered.

Fin Pitch/Thick

Used when Fin Input Options = Fin Pitch/Thickness. Fin pitch/thickness ratio, where:

Fin Pitch = Fin Pitch/Thick x Fin Thickness

Fin Pitch [Calc]

This is not a true input parameter, but is calculated from the fin thickness & fin pitch to thickness ratio:

Fin Pitch = Fin Pitch/Thick x Fin Thickness

Fin Spacing [Fin Base]

The fin spacing at the base of fins placed on the housing. Used when Fin Input Options = Fin Number & Spacing

The Fin Number [Quadrant] is also used to define the dimensions of the fins on an axially finned housing. The Corner Cutout [%] is automatically adjusted to accommodate the fins in this case.

N.B.: The fin pitch is calculated at Housing Dia. in motors which have axial fins that extend out in a radial direction

See Radial Cross-Section Editor and Axial Cross-Section Editor.

Fin extension	Amount by which fin extends beyond Housing Diameter.
Fin thickness	Use average thickness if fins are tapered.
Fin Pitch/Thick	Used when Fin Input Options = Fin Pitch/Thickness. Fin pitch/thickness ratio, where: Fin Pitch = Fin Pitch/Thick x Fin Thickness
Fin Pitch [Calc]	This is not a true input parameter, but is calculated from the fin thickness & fin pitch to thickness ratio: Fin Pitch = Fin Pitch/Thick x Fin Thickness