Markets We Serve Sullivan Steel specializes in bearing quality 52100 tube and bar. Its suitability for use in precision anti friction bearings also makes it suitable for a variety of other applications. The markets we serve are: Bearing manufacturers Precision Bearings Bushings, sleeves, spacers, colletts, wear washers, guides, pins Ball Screws Shafting Rolls Levelers and Z mills Power Transmission (gear reducers, clutches, and hardened sheaves) Pumps and Compressors Cams, rollers, and tappets Tools and dies, molds Seals Forming rolls, disintegrater rolls Instrument parts, gages Sheaves Machine tools Slitter knives Knives Call us today (609)-882-5250 We can help you too!