Bench Test Rollers for "G" Scale Trains
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- Printables
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- Creative Commons — Attribution — Noncommercial
My test track is only 10 ft so I decided to make a set of rollers to test locomotives.
You will need:
Standard 608 8x22x7 “skateboard” bearings
If you want to draw power from the track, a bit of 1/32” x 1/8” brass strip stock bent like an “L” can be pushed in as shown. Alternatively, a similar size strip of any conductive metal can be used. I've made some with repurposed box staples!
https://modelexpo-online.com/132-x-18-x-12-Brass-Strip-10-pcs_p_227.html
These can be used on their own but are more stable when set atop a length of track or press fit on 1/8” x 1” bar stock.
The “Sloppy” version uses 8.5mm pins to accommodate cheap skate bearings on eBay that have a larger inner diameter don’t fit snugly on the pins.