Novel miniature axle of high strength

The utility model discloses a novel miniature axle of high strength, including being cylindric axle body, the axle center of axle body is provided with an axle center hole, the aperture in axle center hole is 5mm, the axial is provided with four rectangle constant head tanks on the downthehole surface in axle center, and four rectangle constant head tanks are the axial lead evenly distributed of body axially, the axle center is downthehole embedded to be provided with a plastics axle core, plastics axle core outside surface go up an organic whole be provided with four with the location sand grip that the rectangle constant head tank matches, plastics axle core constitutes a body structure with this body coupling of axle, be provided with annular knurl section and smooth section on the axle body surface, be provided with the oil groove between annular knurl section and the smooth section. Above -mentioned technical scheme, structural design is reasonable, simple structure, intensity height, light in weight, difficult fracture low in manufacturing cost just.