Finn Mast Bearings

We manufacture mast heel and deck bearings in either black or white acetal plastic.

Heel Cups and Plugs

Finn mast bearings

Wilke Finn Mast Replacement Heel Bearing Cup

outside diameter - 62mm
inside diameter - 55mm
internal height - 45mm
external height - 50mm
drain hole diameter - 16mm

We can adjust the internal and external height to suit the worn heel of the Wilke Finn mast. Just measure down from the centreline of the boom pin hole to the bottom of the mast. This should be 820mm. If it is less let us know and we will adjust the machining of your new Wilke Finn mast heel bearing, to suit.

Finn mast bearings

Custom Size Cup Type Finn Mast Heel Bearing, made as required, typically;

outside diameter - 63mm
inside diameter - 49mm
internal height - 50mm
external height - 60mm
drain hole diameter - 16mm


Price NZ$80.00 (excluding GST)


Finn mast bearings

Plug Type Mast Heel Bearing

plug outside diameter - 63mm
plug length - 50mm
inside boss diameter - 49mm
inside boss length - 100 mm.
drain hole diameter - 20mm.

Optional slot (on 130mm long inside boss) for mounting halyard exit block.

Price NZ$80.00 (excluding GST)


Deck Bearings

Finn mast bearings

Wing Mast Deck Bearing

external diameter - 103mm
height - 20mm
4x9mm vertical holes for control lines
2x6mm vertical holes for halyard
2x9mm angled holes for kicker rope.

Price NZ$120.00 (excluding GST)


Finn mast bearings

Round Mast Deck Bearing

external diameter - 103mm
internal diameter 65mm
internal height - 50mm
outside height - 30mm
4x9mm vertical holes for control lines
3x6mm vertical holes for halyard
2x9mm angled holes for kicker rope.

Price NZ$120.00 (excluding GST)


Finn Mast Bearings can be made to custom diameters and lengths or alternative material and configurations, price on application.

Contact us directly using the details at the top.

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