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Domestic cranes or follow the Soviet period of design ideas, bulky, bulky and so on, so in the motor, reducer, etc. has been relatively backward. Soft tooth surface and the hardened gear reducer is now the best choice for domestic cranes, the first is due to hard tooth surface matching problem, the second is the price of the cost considerations, because the hard tooth surface is still relatively expensive. However, the development of the crane point of view, the crane will use the next hardened gear to the development, because the hardened surface of the gear is not a bit soft or soft-tooth gear reducer in place of hardened surface reducer small size, High life expectancy, high precision, non-oil spills and other advantages is quite prominent. |
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