Quaife (operation of a quaife)

[peter@thescirocco.com (peter)]

-----Original Message-----
From: scirocco-l-admin@scirocco.org
[mailto:scirocco-l-admin@scirocco.org] On Behalf Of Allyn
Sent: Thursday, August 15, 2002 5:34 PM
To: jdbubb@ix.netcom.com
Cc: bbeacock@rogers.com; Scirocco. org Mailing List
Subject: Re: Quaife (operation of a quaife)

holy crap! i understand that perfectally but doesnt that design imply
that there are 'wearable
parts'? i thought a quaife would last forever :).
any details on how wear is controlled/eliminated?
Al

The gears are heat-treated...

Peter


----- Original Message -----
From: "Dan Bubb" <jdbubb@ix.netcom.com>
To: "Allyn" <amalventano1@comcast.net>
Cc: <bbeacock@rogers.com>; "Scirocco. org Mailing List"
<scirocco-l@scirocco.org>
Sent: Thursday, August 15, 2002 2:14 PM
Subject: Re: Quaife (operation of a quaife)


> I will try to be nice.
> This description of how the Quaife works is completely wrong.
>
> Try the following description:
>
> Torque biasing operation is based on the fact that worm gears transmit
> torque efficiently only in one direction. In practice, side gears are
> coupled to each axle and mate with several pair of overlapping
planetary
> worm gears. These worm gears float in the housing and when power is
> applied, the gears are pushed outward, causing friction between their
> tips and the recesses inside the case, thus resisting rotation. This
> allows more torque to be biased toward the wheel with more traction.
>
> We have two means of adjusting torque biasing differentials. The first
> is by the helix angle and pressure angle of the gears; the second is
by
> varying the number of beveled washers exerting outward pressure
between
> the end gears. However, the only practical adjustment is the preload
of
> the end gears.
>
> Dan
> trying not to be a dick.