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Airless Tire — image 1
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Airless Tire

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a replacement for the standard 230mm pneumatic tires often found on inexpensive wheelbarrows

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Creative Commons — Attribution — Noncommercial

All models can be printed without supports. 

An airless tire that replaces the standard 230mm pneumatic tires. I personally currently use four of these tires: two on a small meadow harrow and two on a transport cart. The wheels can easily handle loads up to 150 kg, and they may well withstand more (though I haven't tested this yet). For bearings, I opted for nylon plain bearings that can be lubricated via the built-in grease nipple. 

The two-part version of the tire can even be printed on a Prusa MK3.

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