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Henleys Propellers
and Marine manufacture marine shafting from a variety
of materials. Most commonly used materials are SS 316 and
SS 2205, more exotic materials such as Aquamet or any
other requested material can also be supplied.
Standard shafts are
manufactured, on latest technology CNC machinery, with 1:16
tapers for both propeller and half coupling. Either 1:12
or 1:10 tapers can also be supplied. Both propeller and
half coupling are lapped and blued to ensure a minimum of
75% contact between the corresponding tapers. Records are
kept showing shaft straightness, taper run out, roundness
and percentage of contact (photographic) between tapers.
All Henleys shafts are
straightened to within 0.005" TIR for ¾" to 2½"
and 0.008" TIR for 2½" to 4" shaft
diameters. The shaft assembly is supplied complete with a
nickel aluminium bronze castellated propeller nut, split-pin,
propeller key, nylock coupling nut and coupling key. The
castellated nut is locked to the shaft by means of a
split-pin, which is inserted through a pre-drilled hole
in the propeller thread. Once the propeller nut has been
tightened the split pin is inserted and bent over.
The Henleys Propellers and
Marine tapered standard half couplings are
manufactured in either cast-iron or medium tensile steel
(¾" to 2" cast-iron and 2" to 4"
medium tensile steel) to suit the output flange of any
standard gearbox flange. All couplings are chromed for
rust proofing. For non-standard flanges a drawing should
be supplied to allow a half coupling to be manufactured.
Optional Extras:
- Shaft
manufactured to survey standards.
- Shaft
manufactured to a designer drawing.
- Shaft
manufactured with tapers other than 1:16
taper.
- Shaft
manufactured with wear sleeves as required.
- Additional
threads at the propeller end to take a bullet
anode.
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