LYHY is focus on manufacturing bearing for all kinds of cranes .

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Internal gear

133.25.500, 134.25.500, 133.25.560, 134.25.560, 133.25.630, 134.25.630, 133.25.710,

134.25.710, 133.32.800, 134.32.800, 133.32.900, 134.32.900, 133.32.1000,

134.32.1000, 133.32.1120, 134.32.1120, 133.40.1250, 134.40.1250,

133.40.1400, 134.40.1400, 133.40.1600, 134.40.1600, 133.40.1800,

134.40.1800, 133.45.2000, 134.45.2000, 133.45.2240, 134.45.2240,

133.45.2500, 134.45.2500, 133.45.2800, 134.45.2800, 133.50.3150,

134.50.3150, 133.50.3550, 134.50.3550, 133.50.4000, 134.50.4000,

133.50.4500, 134.50.4500, 

3-931G, 6397/1605G2K, 3-947G, 3-934G,  6397/2590K, 6397/2800G, 6397/2800GK,

6397/2800GK1, 6397/2800GK2, 6392/2910G, 6397/3340, 7397/2210K, 7397/2700G2,

7397/2700G2K, 7397/2700G2K2, 3-945G2,