Pinewood Derby Speed Axles - Axle Polish Grit Level. Which is best for you?

March 19th, 2012

Pinewood derby speed axles are far from the offical pinewood derby axle that comes in the kit. It takes time and skill to turn remove those imperfections that come on the official axles into speed axles. There are many how-to's and books that show you how to do it. It just takes time and practice. Let us take that headache away. We can do it right the first time and free up that extra time needed to spend making your car body and tuning. Visit our online store

We have taken all the hassle out of figuring out this complicated process. Save time and money and check out our axle line. If you only have a few hours to dedicate to your derby build, think about maximizing that time and purchasing a set of prepped axles and wheel. Know that the job is done right. Our prepped axles have been deburred, shaped, straightened and sanded down to a 1000/2000 grit finish. From that point, each axle goes through a buffing process up to 60,000 grit. We use separate buffing wheels to ensure no cross contamination.

For dry-lube users, we offer axles that have been polished to what we believe is the perfect level for dry lube. This is the easiest way to explain it. Take a pencil. Try to write on a surface that is super shiny. See how much (graphite) sticks to the metal. Now take the same pencil and write on a surface that is a little more coarse. See how the pencil (graphite) sticks. We started from the highest level of polish we offered (60,000 grit) and worked our way down. We found that 2000 grit is that level that offers maximum speed and maximum lube retention. Although the higher grits "sound" faster, we find that after a few races, the deviation in time increases quickly and greatly.

Why is this an important thing to understand? Graphite such as Derby Dust™ Dry Lube is an effective lubricant due to its unique blends of plate like structures known as lamellae. These lamellas lay parallel to the direction of motion built during the "break in" process. The unique characteristics of Derby Dust™ Dry Lube allow the layers or lamellas to easily shear over each other resulting in low friction.

Basically explained. The coarse surface allows the graphite to stick or bond to the surface of the metal. From there, with proper break-in technique, layers of lube can be built on top of each other to ensure a friction-free surface. Check out the coefficient of friction of metal on plastic, then check out the coefficient of friction of graphite on graphite. See which is lower which means which is faster. Give yourself the best possible chance! Get the right lube for your build.

For oil lubed cars: We have found that higher the grit, the faster the car. This is why we offer 60,000 grit if you want it. Coming PWD season 2012-2013 we will offer 100,000 optical polish level! Don't waste any more time that you have to. Order yours now!


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November 8th, 2011

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Speed Axles Images

November 8th, 2011

We take axle prep to the next level. Utilizing micro lathes and precision cnc equipment, we take the standard BSA axle and turn it into a speed machine! Our process has been based on evidence based practice over the past 7 years and we have now decided to bring it to the industry.

We understand there is a need for every level of competition in the pinewood derby industry. We offer may different levels of polish from 1000-100,000 grits. you do the research- we'll do the work at a fraction what you can do if you had to purchase all the parts and equipment

Dry lube to oil prepped axles with options such as 1.5-2.5 degree bends, grooved to reduce friction, and tuning options such as the Super Tuner™ Axle upgrade. We offer a wide range of services.

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