New Hampshire Ball Bearings, Inc. (NHBB) | 5,146 followers on LinkedIn. MinebeaMitsumi Group | New Hampshire Ball Bearings, Inc. (NHBB) is a specialized manufacturer of precision bearing products for customers in the aircraft, defense, dental, medical, and high tech industries. NHBB’s largest customer-base is from the aerospace industry, including manufacturers of aero engines and gearboxes, airframe structure, avionics, flight control actuation, helicopter rotor systems, and landing gear.