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Vetus Boat Equipment

VETUS STERNGEAR

All Vetus propeller shafts are made of Remanit 4462. As far as corrosion resistance is concerned, Remanit 4462 is equivalent to stainless steel, type AISI 316. However, it has a tensile strength which is about 30% higher and a hardness of about 40% higher then AISI 316. It is exactly this high degree of hardness which gives Remanit 4462 its excellent running properties in bearings. Moreover, it offers much more resistance against wear and tear in the way of bearings and seals. (Please note that older Vetus shafts were fabricated from Remanit 4418 which had different comparisons with AISI 316)

A Vetus propeller-shaft assembly consists of:

  1. A tapered, straightened and polished Remanit 4462 stainless steel propeller shaft with keyway, thread, lock washer, key and propeller nut with integrated zinc anode. All shaft tapers and keyways have dimensions in accordance with ISO 4566 (1:10 taper)
  2. Outer bearing with incorporated rubber bearing soldered to bronze stern tube
  3. Mounting flange for outer bearing
  4. Mounting flange for stern tube
  5. Flexible stuffing box with rubber sleeve for shaft
  6. Propeller

Shaft assemblies with stuffing box (25/30/35/40mm)

Water lubricated shaft assemblies with self-aligning inner bearing and a stuffing box are available "off the shelf".

Propshaft:
Diameter
Standard lengths
(mm)
Taper length
(mm)
Propeller nut
25mm 1000 / 1500 / 2000 / 2500 55 M16 x 1.5
30mm 1000 / 1500 / 2000 / 2500 75 M20 x 1.5
35mm On request 85 M24 x 2
40mm On request 95 M24 x 2
Sterntube Standard lengths
(mm)
Outer diameter
(mm)
Length behind flange
(mm)
For 25mm propshaft 500 / 1000 / 1500 / 2000 40 88
For 30mm propshaft 500 / 1000 / 1500 / 2000 44 105
For 35mm propshaft On request 48 117
For 40mm propshaft On request 54 133

Shaft assemblies with dual shaft seal (25/30mm)

For use with less powerful engines, Vetus have designed and developed a shaft assembly - with shaft diameters of 25 mm or 30mm - which can be installed with a minimum of fuss. Machining, threading and keyway cutting have all been taken care of. In addition, these shaft assemblies protect the environment: lubrication is ensured by means of raw water, without use of grease or oil. The stern tube is provided with a dual shaft seal, eliminating the need for a stuffing box. The stern tube may be supplied in either bronze or GRP.

Propshaft:
Diameter
Standard lengths
(mm)
Taper length
(mm)
Propeller nut
25mm 1000 / 1500 / 2000 55 M16 x 1.5
30mm 1000 / 1500 / 2000 75 M20 x 1.5
Sterntube Standard lengths
(mm)
Outer diameter
(mm)
Length behind flange
(mm)
For 25mm propshaft 500 / 1000 / 1500 43 88
For 30mm propshaft 500 / 1000 / 1500 49.5 105

Shaft assemblies with dual shaft seal (35/40/45/50mm)

These assemblies have bronze stern tubes for installation into GRP vessels and have a stern mounting flange. The stern tube is provided with a dual shaft seal and lubrication is ensured by means of raw water, without use of grease or oil.

Propshaft:
Diameter
Standard lengths
(mm)
Taper length
(mm)
Propeller nut
35mm On request 85 M24x2
30mm On request 95 M24 x 2
45mm On request 105 M30x2
50mm On request 115 M36 x 3
Sterntube Standard lengths
(mm)
Outer diameter
(mm)
Length behind flange
(mm)
For 35mm propshaft On request 57 117
For 40mm propshaft On request 62 133
For 45mm propshaft On request 72 145
For 50mm propshaft On request 77 162

Shaft assemblies with dual shaft seal (35/40/45/50mm)

These assemblies have steel stern tubes for installation into steel vessels and may be welded into place. The stern tube is provided with a dual shaft seal and lubrication is ensured by means of raw water, without use of grease or oil.

Propshaft:
Diameter
Standard lengths
(mm)
Taper length
(mm)
Propeller nut
35mm On request 85 M24x2
30mm On request 95 M24 x 2
45mm On request 105 M30x2
50mm On request 115 M36 x 3
Sterntube Standard lengths
(mm)
Outer diameter
(mm)
Length behind tube
(mm)
For 35mm propshaft On request 60 10
For 40mm propshaft On request 63.5 12
For 45mm propshaft On request 70 12
For 50mm propshaft On request 76 15

Propellers

A ship's propeller is possibly the most important component of a motorboat. Vetus make good use of a specially developed computer programme which ensures the determination of the exactly right propeller for your boat, with the aid of some (correct!) inormation which is required from the customer.

Three types of managnese-bronze propeller are available:

P3B: 3-blade suitable for displacement craft with speeds of up to 10 knots
P3C: 3-blade suitable for faster craft
P4E: 4-blade suitable for semi-planing boats with speeds of more than 16 knots

Diameter
P3B
Diameter
P3C
Diameter
P4E
Largest diameter Smallest diameter Hub length Keyway width
12" - 15" 12" - 15" - 25mm 19mm 60mm 8mm
16" - 18" 16" - 18" - 30mm 22mm 80mm 8mm
19" - 21" 19" - 21" 18" - 20" 35mm 26mm 90mm 10mm
22" - 24" 22" - 24" 21" - 22" 40mm 30mm 100mm 12mm
25" and 25" and 23" - 24" 45mm 34mm 110mm 12mm
upwards upwards - 50mm 38mm 120mm 14mm

Note: all specifications are subject to change without notice. Please contact us for details of prices and any further information, full details are available in the current Vetus catalogue which you can request online.

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