Ball Bearings RFP

Description: 1. Ball Bearings must be manufactured in the United States or Canada. 2. Material: Corrosion resistant steel, conforming to the chemical composition of UNS S44003 or UNS S44004 in accordance with ASTM A276. 3. HARDNESS: Shall be 58-65 HRC or equivalent. 4. Allowable surface roughness (ARITHMETICAL AVERAGE): 1.0 millionths of an inch. In accordance with ANSI B46.1. 5. Allowable ball diameter variation: 10 millionths of an inch. (.00001). 6. Allowable deviation from spherical form: 10 millionths of an inch. (.00001). 7. Basic Diameter: .125000”. See attached file.