Cifa Spare Parts Bronze Bushing S000222859 (222859)

This bronze bushing, part S000222859, is a genuine Cifa spare for concrete pump wear assemblies. It sits inside the slewing ring or articulation joint, taking daily shear and compression loads.

Machined from high-leaded tin bronze, it offers low friction and high embeddability. The material allows debris to bury itself without scoring the steel pin, which extends service life in gritty environments.

Surface finish is held to 0.8 µm Ra, with a bore tolerance of H7. You’ll find no coatings or plating—just solid bronze, because grease retention depends on the natural porosity of this alloy.

Before fitting, check your pin for scoring or ovality. Install with a thin smear of moly grease, never hammer directly on the rim. Any distortion here leads to rapid seizure or cracking within hours of operation.

Stock this bushing if you maintain Cifa boom pumps or truck mixers. It matches OEM drawing 222859 exactly; aftermarket copies often skip the leaded alloy or shrink the oil groove depth.