MK9R
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| posted on 17/6/10 at 07:31 AM |
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One direction way rotating hub for propshaft
No idea what to call what i want, and not sure if it exists in the guise i want. But here goes:-
I want to be able to create a prop shaft that transmit drive if turned in one direction, but freely turns in the other direction, i.e. just like a
bicycle rear wheel.
Now i have thought that maybe free wheeling hubs off a 4x4 would be suitable, but there seems all different sorts, plus these hubs don't really
lend themselves (due to there size and shape) to be fitted inline on a prop shaft. Any ideas??
Cheers Austen
RGB car number 9
www.austengreenway.co.uk
www.automatedtechnologygroup.co.uk
www.trackace.co.uk
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tony-devon
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| posted on 17/6/10 at 07:41 AM |
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a one way clutch bearing in a custom assembly sounds like the sort of thing your after, but you will have to check the forces and sizes etc
Im using them for the electric reverse setup on my trike build
was that mesh any good?
heavy is good, heavy is reliable, and if it breaks, hit them with it
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MK9R
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| posted on 17/6/10 at 07:46 AM |
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quote:
Originally posted by tony-devon
a one way clutch bearing in a custom assembly sounds like the sort of thing your after, but you will have to check the forces and sizes etc
Im using them for the electric reverse setup on my trike build
was that mesh any good?
I'm trying to find a sealed unit that i could just bolt on to a modified prop.
Mesh was perfect thanks, i need to sort you out some mullar!!
Cheers Austen
RGB car number 9
www.austengreenway.co.uk
www.automatedtechnologygroup.co.uk
www.trackace.co.uk
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britishtrident
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| posted on 17/6/10 at 08:10 AM |
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Rover used one on the early P2 Cyclops anuntie Rovers.
It was later banned from use..
[I] “ What use our work, Bennet, if we cannot care for those we love? .”
― From BBC TV/Amazon's Ripper Street.
[/I]
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Mal
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| posted on 17/6/10 at 08:22 AM |
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Free-wheel
Try this company.
Cross and Morse.
http://www.cross-morse.co.uk
HTH
Mal
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MK9R
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| posted on 17/6/10 at 08:28 AM |
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quote:
Originally posted by Mal
Try this company.
Cross and Morse.
http://www.cross-morse.co.uk
HTH
Mal
looks very interesting!!
Cheers Austen
RGB car number 9
www.austengreenway.co.uk
www.automatedtechnologygroup.co.uk
www.trackace.co.uk
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nitram38
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| posted on 17/6/10 at 08:47 AM |
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Why would you do this?
What would you gain?
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MK9R
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| posted on 17/6/10 at 09:05 AM |
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quote:
Originally posted by nitram38
Why would you do this?
What would you gain?
The gear ratios on the freelander diffs mean that the front and rear prop shaft rotate at a slightkly different speed under normal driving conditions
(approx once a second at 70mph), the slip is allowed for by teh viscous coupling slipping, if the slip rate increases the viscous coupling becomes
stiffer and transfers more power to the rear wheels (i.e. off roading). Even at normal and correct working operation, there is forces being tansmitted
down the 4x4 system which reduce MPG and the car actually drives nicer in just front wheel drive. So be able to divert all drive away from the rear
wheels under normal driving conditions would be ideal, but still leave 4x4 option if and when required
Cheers Austen
RGB car number 9
www.austengreenway.co.uk
www.automatedtechnologygroup.co.uk
www.trackace.co.uk
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MikeCapon
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| posted on 17/6/10 at 09:05 AM |
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Old Saabs also had freewheels you could switch off (lock up) with a lever on the transmission tunnel. I think it was mainly the two strokes but
possibly some of the early four strokes.
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Liam
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| posted on 17/6/10 at 11:51 AM |
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I guess you've probably checked, but is the speed difference in the right direction for this to work and not just disable the 4wd altogether?
i.e. is the rear side of the VC spinning faster than the front side as standard? If not, and the front side is currently faster, when you add the
freewheel mech, and you slip the front axle, it'll just freewheel faster and you'll never get 4wd.
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MK9R
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| posted on 17/6/10 at 11:54 AM |
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quote:
Originally posted by Liam
I guess you've probably checked, but is the speed difference in the right direction for this to work and not just disable the 4wd altogether?
i.e. is the rear side of the VC spinning faster than the front side as standard? If not, and the front side is currently faster, when you add the
freewheel mech, and you slip the front axle, it'll just freewheel faster and you'll never get 4wd.
Yes rear goes slightly quicker 
Cheers Austen
RGB car number 9
www.austengreenway.co.uk
www.automatedtechnologygroup.co.uk
www.trackace.co.uk
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