Experienced slot car builders and racers know the importance of axle spacers - they are very helpful when adjusting front and rear track width and allow precise adjustment of gear mesh. Slot Car Corner offers high-quality 3/32" axle spacers in five (5) different thicknesses. SCC's thinner spacers are made of stainless steel and are 0.005" or 0.010" thick. SCC's thin spacers are made of low-friction nylon and are .020" thick. These are thin enough to allow precise adjustments or to take up side-to-side slop. The spacers can also be "stacked" to fill larger gaps or to precisely center crown gears on the motor shaft. The thicker spacers are made of aluminum and are .050" or .100" thick. This allows you to fill larger gaps with fewer spacers - for example, when centering a crown gear on the motor shaft.
Stainless stell spacers have a thickness of 0.005" or 0.010", nylon spacers have a thickness of 0.020" and aluminum spacers have a thickness of 0.050" or 0.100".