Professor Motor PMTR5012 Stamped brass motor bracket for scratch building

Bushing openings are intended for 7/32" O.D. brass tubing which then in turn will fit 3/16" OD bushings or bearings. SO, for 1/8" axles use the tube with PMTR1101 "oil reservoir" bushings or for 3/32" axles use the tube and PMTR1073 bushings with speed ring. OR you can use 1/4" OD bushings and spin in a drill or Dremel and hit with a file to get them to fit in the 0.219" Hole .. very easy to do ..