1) Sliding contact surfaces: Steel vs. Steel.   
2) Materials: Body is made of carbon steel, insert bearing is made of high chrome bearing steel.   
3) Heat treatment: Body surface is phosphorized.   
4) Features of structure: The unit consists of a body and a spherical plain bearing GE..ES. With oil nipple.   
5) Properties: Good wearability, corrosion resistance, self-alignment, heavy load capacity.


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