... ,sleeve assembly: match three common shaft sizes:12mm, 16mm,20mm, 5/8'' or3/4'' 2, for high ... used in family water pumps, industrial pumps, auto cooling-pumps and compressors. The products sell ... designing,lathing,stamping,molding,grinding and final assembly are all accomplished in ourselves specialized facility. ... diameter rotary shaft applications. Auto unitized seal for engine coolant pumps type 6A