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Debo Brute2010-08-15 10:50:59 +0000 #1

Benefits of Flexible Shaft

Flexible Shafts are a preferred rotary motion transmission device because they: Eliminate alignment problems: Flexible Shafts have no need for the tight tolerances that solid shafts require
Provide Greater design freedom : Limitless possibilities in positioning motor and driven components
Have Higher Efficiency : Flexible Shafts are 85%-95% efficient. Gears, U-Joints Belts and Pulleys give much lower performance due to greater frictional losses
Allow Large offsets: Flexible couplings allow only 5 degrees of offset and U-Joints 30 degrees, but with a 40-50% decline in efficiency. Flexible Shafts permit a full 180 degree off-set while maintaining their high efficiency
Are Light weight and powerful: Flexible Shafts have a 3 to 1 weight advantage over other design solutions while transmitting greater power loads
Have Lower Installation Cost: Flexible Shafts install in minutes without special tools or skills. Solid Shafts, Gears, Pulleys, and Universal Joints require precise alignment and skilled mechanics for their installations.
Reduce parts cost: Bearings and housings for Solid Shafts and Gears require precise machining operations. Flexible Shafts eliminate the need for such demanding tolerances and their excessive costs.
Are Easy To Install: Need no special installation tools.
Can Be Designed At The Latter Stages Of A Project: Unlike other rotary motion devices that need to be designed around because of their rigidness, defined configurations, and large mass. Flexible Shafts allow greater design freedom since engineers have only one piece to work on, eliminating complex coordination of multiple pieces
Are not affected by vibrations: Vibrations do not affect flexible Shafts performance.
Versatile Flexible Shafts

Flexible Shafts are often the preferred choice for rotary motion transmission over gear boxes, universal joints, and belts-and-pulleys in industrial and medical fields as well as in consumer items.


Flexible Shafts are preferred over gear boxes because they:are more economical for right angle bends
are more efficient
are less noisy
occupy less space
are easier to install-need no special skill or special tools
require looser tolerancing
don't require expensive couplings that gear boxes often need

Flexible Shafts are preferred over universal joints because they: are less expensive
have fewer components
are more efficient
do not require tight mounting tolerances unlike universal joints
have constant angular velocity
require minimal maintenance
make very little noise
Further, universal joints can be off-set only up to 15-20 degrees after which the change in angular velocity becomes objectionable. Flexible Shafts go up to 90 degrees without any discernible change in performance.

In universal joints, more components are needed beyond 20 degree offsets, adding to cost and space requirements. <!-- InstanceEndEditable -->

Polaris4252010-08-15 11:02:21 +0000 #2
hmmmmmm........ I know what you are getting at...
jv2cat2010-08-15 11:14:50 +0000 #3
An innovative idea that's for sure. Im not sure on how these would hold up when put under major stress though.
phreebsd2010-08-15 11:04:54 +0000 #4
wonder if these could replace axles? if so think of the possibilities!
mrkd12010-08-15 12:22:55 +0000 #5
I know I don't care for them in a rachet extension type..hope they work better for shafts.
langford20002010-08-15 11:36:26 +0000 #6
I wonder how much give they would have under load? Might be a diff save in the brute if they would give a little while running.
IBBruin2010-08-15 13:23:31 +0000 #7
IMO they would have to be as thick as your arm to hold up to the stress delivered by todays high torque 4 wheeler engines.



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