The product is based on high-quality mild steel plate, with a porous bronze layer sintered in the middle, and a mixture of polyoxymethylene (POM) and lead (Pb) rolled on the surface....
SF-2 Carbon steel base boundary lead-free self-lubricating bearings
SF-2Y Carbon steel base boundary lead-free self-lubricating bearings
SF-2S Carbon steel base boundary lead-free self-lubricating bearings