The Volvo Penta folding hub kit for 3 bladed props is available as a Saildrive option for 110S, 120S, 120S-E, MS25S, 130S and 150S Saildrives or in different sizes for a tapered shaft. First, choose the correct hub kit for your shaft or Saildrive, and secondly choose the correct 3 blade kit for your yachts length, displacement, engine and gearbox ratio. On a shaft, the hub kit uses a standard Metric or SAE taper and keyway size, dependant on the shaft diameter. Contact us for the keyway and taper standard measurements for each shaft if you are unsure.
As a guide:
The Saildrive hub fits 110S, 120S, 130S, 150S and MS25S drives
For 25 mm shaft, the key should be 6 mm, Shaft taper required, Metric 1:10
For 30 mm shaft, the key should be 8 mm, Shaft taper required Metric 1:10
For 1" shaft, the key should be 1/4”, Shaft taper required SAE 1:16
For 1 1/4" shaft, the key should be key 5/16”, Shaft taper required SAE 1:16
The pre-drilled hub is 8mm and will require final matching to a required shaft diameter, taper and keyway up to 31.75mm (1 1/4") shaft.
The correct 3 blade propeller is vital to get the most out of your engine and boat. The power range for the 3-blade propeller is 25-60 HP and it is available in 23 sizes with different pitches and a blade area of 36%. We can help to ensure the correct pitch is ordered. There is also a pre-drilled hub version with an 8 mm hole that requires final machining to the required shaft diameter and taper. It is, however, worth considering replacing the shaft with a standard taper version if the existing taper does not match standard Metric or SAE measurements.
The correct propeller is vital to get the most out of your engine and boat. If you need help in sizing your propeller, please call us first. The power range for the 3-blade propeller is 25-60 HP and the 4-blade propeller is 55-120 HP. Typically, to give an example of efficiency, a folding propeller will reduce a Chanel crossing by 4- 5 hours.
The Volvo Penta 3 bladed hub is isolated from the Saildrive shaft electrically. This is why there is a hub anode fitted, to protect the prop. Some manufacturers folding props do not have a propeller anode fitted. We have seen corrosion and lower gearcase damage, particularly around the edge of the bearing housing on a Saildrive due to the propeller not having rubber bushing or an anode to galvanically isolate the propeller from the Saildrive. Any corrosion on the Saildrive should be repaired immediately to prevent more corrosion.
The correct propeller and hub kit are vital to get the most out of your engine and boat. If you need help in choosing your hub kit, please call us first on 01326 370060.
Volvo Penta Zinc cut anode for 130S and 150S Saildrive with Ambassador stripper rope cutter, Part Number 22651246
Volvo Penta Zinc anode for 120S and MS25S Saildrive fitted with an Ambassador rope cutter.
Volvo Penta 3 blade folding propeller Saildrive hub kit for MS25S, 110S, 120S, 130S, 150S. Each kit includes Zinc anodes, locking fluid and all installation hardware
Volvo Penta 3 blade folding propeller hub kit for a 25mm shaft. The shaft requires a taper of 1:10 and a keyway of 6mm.
Volvo Penta 3 blade folding propeller hub kit for 30mm shaft. This hub kit requires a taper of 1:10 and a keyway wedge of 8mm.
Volvo Penta 3 blade folding propeller hub kit for a 1" shaft. This hub needs a shaft with a 1:16 taper and 1/4" keyway to fit correctly.
Volvo Penta 3 blade folding propeller hub kit for a 1 1/4" (1.25") shaft with a taper of 1:16 and 5/16" keyway wedge.
Volvo Penta 3 blade folding propeller hub kit that is pre-drilled to 8mm to allow finishing to your required taper and keyway.
Folding hub hex screw used on a 3 or 4 blade folding hub mounted on a Saildrive or shaft. Three or four are required dependant on the number of blades present.
The 3 part folding hub anode 3858399 should be checked regularly to ensure the propeller is protected from corrosion.