Refrigerant compressor with wear sleeve and lubricant blends for handling debris-laden fluids

A method of retrofitting a compressor, the compressor, comprising a housing, a shaft configured to be rotated relative to the housing to compress a refrigerant, a motor configured to drive the shaft, a lubrication system configured to supply lubricant to the compressor, and a bearing configured to support the shaft, wherein the shaft comprises a wear-resistant sleeve-like treatment on at least a portion of an outer surface of the shaft adjacent the bearing, and wherein the lubricant is a lubricant blend composition comprising two or more lubricants, the two or more lubricants including a first lubricant;

• and a second lubricant, wherein the first lubricant is present at a higher volume percentage than the second lubricant, and the first lubricant includes a higher viscosity than the second lubricant, the method comprising:
• coating a sleeve for the shaft of the compressor to provide a wear-resistant coating;
• and
• interference fitting the sleeve on the shaft of the compressor by heating the sleeve and fitting the sleeve over the shaft.