Flex Shafts

      The operation of a fuselage...
The operation of a fuselage helicopter with a flexible shaft requires special care when designing and assembling / installing the shaft in the fuselage.

The flex shafts usually have a higher breaking load than the built-in plastic bevel gears. Awkward installation can tend to swing during hard maneuvers or very pointed tail gyros.
However, a flight style adapted to the scale model usually creates a low load. The originals are far from having the excess power like most models.

The normal mode also leads to a more suitable for the scale Airplanes image.


Criteria and installation:


The Flex shafts run in a special guide tube / hose, using either a plastic tube or a metal tube.
The plastic tube is used in smaller helicopters, where the load on the shaft is smaller.
The metal tube is a coiled guide tube, the sheathed has externally fitted an additional rubber coating.


All guide tubes must be filled before operation with grease (multipurpose grease), then the flexible shaft will be screwed into spiral direction.
In this way, also the spaces between the shaft are filled with grease.
The grease will be hot during operation and thereby it will flow.
When plastic hose and for coated metal tubing it may be leak through both ends.
In the open metal tube it may also leak through the spiral.
Thus, the grease must be refilled from time to time

For installation, we recommend the use of aluminum pipe from the hardware store.
This can be bent without the shaft in the proper curvature before the assembly, and will then be set in the fuselage.
It also serves for the open metal tube as a seal, so that grease can leak only at the ends.
When using no additional tube, the guide tube must be set multiple times in the fuselage, so that it can not vibrate freely.


The guide tube has a lot of excessive amount in internal diameter, with less contact points form the shaft.
Our shafts are typically used for drives in Industries and come from an experienced Swiss company.
They are at least twice coiled, but should nevertheless not be used against there direction.
Among other things, a test, which is rotated at the tail rotor and the main transmission is blocked, leading to the destruction of the flexible shaft!

With our shafts in the shop are the details of the permissible torques and bending radii. For comparison, the torques of conventional bevel gears are shown in the helicopter models.

The direction of rotation of the shaft is always viewed from the direction of the actuator toward the driven member.
A normal (right) rotating T-Rex therefore need a CCW shaft.

The installation aids (600-700) determine the outer tube and can include an additional bearing for the adapter, thereby the required game will not converted in vibrations. These adapters fit directly into the tail boom holding a T-Rex 600 or 700
Other adapters can also be customized
.

Page 1 of 1
Items 1 - 30 of 30

Adapter for Flexshaft (T-Rex500)

11,21 € *
can be ordered

Adapter for Ø4mm or Ø5mm flex shaft T-Rex 600 or 700

11,21 € *
can be ordered

Adapter for flexshaft Ø4 mm to whole Ø2 mm

9,07 € *
can be ordered

Adapter for flexshaft Ø5 mm to whole Ø4 or Ø5 mm

8,19 € *
can be ordered

Flex-Shaft 6mm to Align bevel gear 700

11,21 € *
can be ordered

Adapter for T-Rex450 to Ø2mm steelshaft

9,26 € *
can be ordered

Adapter for shaft Ø6 mm on bore Ø4 or Ø5mm

8,19 € *
can be ordered

Mounting aid for T-Rex600 / 700 rear unit

10,19 € *
can be ordered

Flexshaft Ø3mm (500er size) left (CCW)

8,68 € *
8,68 € per 1 m
can be ordered

Flexshaft Ø3mm (500 size) right (CW)

8,68 € *
8,68 € per 1 m
can be ordered

Flexshaft Ø4mm (600 size) left (CCW)

9,96 € *
9,96 € per 1 m
can be ordered

Flexshaft Ø4mm (600 size) right (CW)

9,96 € *
9,96 € per 1 m
can be ordered

Flexshaft Ø5mm (700 / 800er size) left (CCW)

11,60 € *
11,60 € per 1 m
can be ordered

Flexshaft Ø5mm (700/800 size) right (CW)

11,60 € *
11,60 € per 1 m
can be ordered

Flexshaft Ø6mm (700/800 size) left (CCW)

11,99 € *
11,99 € per 1 m
can be ordered

Flexshaft Ø6mm (700/800 size) right (CW)

11,99 € *
11,99 € per 1 m
can be ordered

Flexshaftset 500-4

starting from 38,70 € *
can be ordered

Flexshaftset 500-4

starting from 64,53 € *
Short supply

Flexshaftset 600-4

starting from 91,39 € *
Not available now!

Plastic hose for flexible shaft Ø3mm

4,39 € *
4,39 € per 1 m
can be ordered

Plastic hose for flexible shaft Ø4mm

4,78 € *
4,78 € per 1 m
can be ordered

Metal hose for flexible shaft Ø4mm

21,52 € *
21,52 € per 1 m
can be ordered

Metal hose for flexible shaft Ø3mm

22,32 € *
22,32 € per 1 m
can be ordered

Metal hose for flexible shaft Ø3mm (very flexible)

22,91 € *
22,91 € per 1 m
can be ordered

Metal hose for flexible shaft Ø4mm

37,97 € *
37,97 € per 1 m
can be ordered

metalhose for Ø4mm flexshaft (sheathed)

28,76 € *
28,76 € per 1 m
can be ordered

Metal hose for flexible shaft Ø4mm (sheated, very flexible)

30,86 € *
30,86 € per 1 m
can be ordered

Metal hose for flexible shaft Ø5mm

44,49 € *
44,49 € per 1 m
Short supply

Metal hose for flexible shaft Ø5mm

44,49 € *
44,49 € per 1 m
can be ordered

Metal hose for Ø6mm power transmission shaft

45,23 € *
45,23 € per 1 m
can be ordered