Recently, I found a wheel on Amazon that works very well (Uxcell Ball Bearing Guide Pulley Roller Round Wheel 8x30x8.5mm Double Metal Shielded (GCr15) Chrome Steel Bearings, 4pcs). This is a much more robust wheel.
However, additional parts are needed as these are just wheels and don’t include spacer, nuts, and bolts. I used the original 1-1/16” Alpine Tracker bolt and locking nut, along with 5/8” nuts and ¼” washers that I purchased from Home Depot for spacers which resulted in a perfect fit within the Alpine Tracker’s track.
The assembly order goes bolt, wheel, nut, 2 spacers, add to foot pad, then bolt and locking nut.
Note that the washers don’t necessarily just slide down the bolts and may need to be screwed on. (If I had a drill press, I might have drilled the centers out to 5/16” to make assembly a bit easier.)
When assembled in this order, the wheels fall center within the Alpine Tracker track’s groove. The result…smooth and quiet!
Anthony Nagel, February 2025