Originally Posted by Brian B-P
That makes sense, but UCF builds their Flexiride "rubber torsion" suspension arms with the brake mounting flange integrally cast as part of the arm... there are design choices here so assumptions are dangerous.
See UCF's Flexiride 3500 axle leaflet
for an illustration.
Clearly, this is correct for the Flexiride. As the arms are replaceable, one could add new arms with flanges to avoid replacing the whole axle
assembly, though it appears that the flanges may be standard.
Excellent info, Tom. : The normally informative Dexter Axle site doesn't clearly show a flange-equipped Torflex that I could find.
This means that a flange could be added to the spindle, but readily available flanges for adding to beam axles will still have the wrong size hole to fit the spindle (unless a Torflex spindle in our sizes has a huge diameter). Also, these axles come with regular and long spindles, so length should be checked for enough room to add the flange in the right position.
I looked at the Scamp
owners manual (an excellent piece of work by the way). They show grease seal inner diameters of 1.5" and 1.719". As the brake flange sits on the next larger diameter, the ID of the brake flange needs to be bigger, but I was unable to find the diameter of this portion of the spindle. The readily available flanges I found had inner diameters of 1.64",1.69",1.75" and 2.27".
This would be an easy part to fabricate (a 1/4" plate with 5 holes) but it would be nice if the parts were available off the shelf. Surely they are mass produced to meet the OEM demand.
If anyone has a Dexter axle
and could measure the diameter of the spindle where the brake flange attaches, it would be nice to add it to this discussion for future reference.