Volvo Penta hub set for 2-blade folding propeller for 5–40 hp – 21630725

Volvo Penta hub kit 21630725 is an original Hub Kit for a 2-blade folding propeller on a propeller shaft. This hub kit forms the central connection between the propeller shaft and the propeller blades and is specifically designed for sailing yachts with Volvo Penta engines from 5 to 40 hp. The hub is pre-bored with an 8 mm hole and must be machined by a specialist to the required shaft diameter, taper, and keyway. After machining, the hub is suitable for propeller shafts up to 31.75 mm (1 1/4 inch). The high-quality Nibral alloy provides excellent resistance to corrosion and demanding marine conditions.

Main features and benefits:

Pre-bored hub: Supplied with an 8 mm bore for custom machining to the required propeller shaft.
Suitable for shafts up to 31.75 mm: After machining, suitable for propeller shafts up to 1 1/4 inch.
Nibral construction: Extremely strong and corrosion-resistant alloy for a long service life.
Suitable for 5-40 hp: Designed for Volvo Penta engines within this power range.
Original Volvo Penta part: Provides the perfect foundation for reliable installation.
To be combined with a blade set: Suitable for installation with a matching Volvo Penta 2-blade Blade Kit.