Long term & destructive testing

Once installed, the stationary ring gear design seals against dirt and water ingress into the device. Virtually no maintenance and no worries. Tested to more than 10 000 km on a single planet in the wet and muddy, dry and dusty & snow and ice conditions.

If there’s no pressure on the planet (due to incorrect installation), there’s no wear and I’ve tested this by making a drill setup to test PLANET3s in the bike stand. I spun each version at 720 rpm which corresponds to about 100 km/h of speed in real life, which provides a lot more side pressure to the teeth of the planet and the ring gear than they would ever experience on a bike and after 5-6 days of sleeping with ear plugs due to a drill working in the other room non-stop, the conclusion was simple: it’ll never wear out so long as it’s installed with the pre-designed gap between the two main large parts, leaving the small planet (magnet carrier) to move freely inside.