... for wheelbarrows 4.Superior quality solid wheel 14''x4'' without bearing Wheel choice:While choosing a wheel, you’d consider several ... , or semi-pneumatic, steel or plastic rim, hub length, bearing diameter etc.Commonly: a wheel includes: tyre+tube+rim ... centered. If steel: powder coated, or zinc platedBearing: ball bearing, roller bearing or nylon/steel bushingDetail refers to spare parts (tire, tube ...