NBC has produced Axle Boxes for the railways since 1952. The company meets the complete requirements of the Indian Railways (one of the largest in the world) by designing and developing Axle Boxes and bearings for fitment to locomotives manufactured by Diesel Locomotive Works, Chittaranjan Locomotive Works, various other wagon builders, ICF broad and meter gauge coaches. Over a million NBC bearings and boxes are in service with the Indian Railways. The development of completely indigenized Axle Boxes and bearings for the high speed Rajdhani Locomotive, and the Yugoslavian and Egyptian Railway wagons are the highlights of the design capabilities at NBC.