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Train wheels are affixed to a straight axle, such that both wheels rotate in unison.
An axle is a central shaft for a rotating wheel or gear. In some cases the axle may be fixed in position with a bearing or bushing sitting inside the hole in the wheel or gear to allow the wheel or gear to rotate around the axle. In other cases the wheel or gear may be fixed to the axle, with bearings or bushings provided at the mounting points where the axle is supported. Sometimes, especially on bicycles, the latter type is referred to as a spindleview more...


 KidzTube            
Mystery box revealed- Wheel and axle // Homemade Science with Bruce Yeany

Mystery box revealed- Wheel and axle // Homemade Science with Bruce Yeany
Testing a Lego-compatible Steel Axle

Testing a Lego-compatible Steel Axle
Can Lego BREAK a Steel Axle

Can Lego BREAK a Steel Axle
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