European wheel set is mainly used for the more advanced European crane, the wheel has light weight, small volume, convenient installation, more forged wheels, mainly by the car wheel shaft, wheel, bearing housing and bearing four parts, because of the need to directly match with triad reducer, do not need through the shaft coupling, reason this kind of wheel assembling accuracy requirements are very high, the car wheel and axle is 40 crmo material, need to deal with the modulation after rough machining, heat treatment hardness of HB300. The wheel plate is forged 42CrMo, fitted with the wheel shaft, and connected by the flat key. The wheel plate is modulated, and the hardness of heat treatment is HB300-HB380. The bearing box is composed of cast steel 25-30. Bearing imported NSK, SKF bearing, long service life, reliable quality .
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