2015年10月14日星期三

Cranes bearing and marine gram make hanging bearing and other more technical features

4 m harbor cranes usually use internal or external gear teeth diameter three row roller slewing bearing to withstand high overturning moment. All kinds of cranes bearing, bucket wheel bearing, marine cranes and crane bearing usher bearing repair peak, the failure rate frequently, in order to save costs and improve the utilization of the bearing, slewing bearing repair, repair of wheel bearings business growing. About deck crane bearing appears sound, sometimes accompanied by vibrations, which may be for the following reasons:
1. Bearing heavy loss, fragmentation caused by the ball portion;
2. Ball isolation block (nylon or metal material) crushed, causing blockage;
3. bearing channel layer fatigue hardness loss, pitting, pits, pitting, bearing operation is not flexible;
4. bearing long-term stress and deformation, ovality tolerance
5. seal failure, bearing lubrication channel not long, into the channel of debris blockage.

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