Heavy Duty Excavator use Lubricating Sleeve Bearing
Bushing Dimpled
More lubricating ,long life
1. The oil pits are distributed on the internal surface.
2. The oil pits has perfect oil reserve ability 3-5 times than normal , it can last long time without maintenance.
3. The oil pits do not reduce the bearing loading ability and the bearing's using life is prolonged.
4.Carburizing and quenching, hardness 56-62HRC
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