NAW was first to manufacture worm Gearbox in the country in the year 1959 with its own design. However, in order to achieve excellence and manufacture Gearboxes of world quality products NAW entered into a License Agreement with John Holroyd of Milnraw, U.K. during 1962 to acquire technical know-how as well as special purpose Machine Tools such as HOLROYD make Tangential Hobbing, Worm Milling as well as Worm Grinding Machines, Hob Sharpening and Fly-Tool Grinding Machines, Lead and Profile Checking Machine etc. During the Agreement period, the technology of not only Worm Gear Boxes but also that of Special Design Hob Cutter, Fly Cutter were assimilated by NAW and Product Range, under the brand name of "ALLROYD®", was launched conforming to BS 721 Class 'A' quality standard. The License Agreement was for the sizes of 1/8" to 12" Centre Distance (12 sizes) & Reduction Ratio of 5:1 to 70:1 (11 Ratios). However, NAW developed another 9 sizes on its own later on to meet the demand of high power ratings. Today only NAW makes largest size Worm Gear Set of 41" CD and caters to the demand of Power Plants. Similarly, NAW makes Gear Sets of any reduction ratio, which could be possible because of in-house manufacturing of Hob Cutters.

Encouraged with the response to ALLROYD® brand Worm Reduction Gearboxes in 3 different orientations, both single and double reduction type with maximum 4900:1 reduction ratio, NAW started manufacturing Helical Gearboxes and Geared Motor products with its own design to meet the ever-increasing demand for parallel shafts and co- axial drives of Higher Power Ratings. Backed up with the urge to manufacture the Gearboxes to world quality products to DIN 3990 and 3960 standards NAW went for License Agreement with JAHNSADERFABR1K RENK A.G., AUGSBURG, then in WEST GERMANY, a world renowned company for Gearbox manufacturing, during 1962 to manufacture Parallel as well as Co-axial Shaft Helical Gearboxes for higher power rating under the brand name of ALLEN-RENK which was subsequently changed to ALLENMAX after expiry of the License Agreement. The gear elements under this brand are made of Alloy Steel, suitably hardened and tempered to the required specification. Large type of machine tools, such as Liebherr & WMW Hobbing Machine, WMW Boring Machine, Webster-Benett make Vertical Boring Machine etc. were imported- ALLENMAX Gearboxes are of single, double and triple reduction type depending upon the desired reduction ratio, minimum being 1.4:1 to a maximum of 200:1 with power rating over 5000 HP.

During 1965, NAW went for another License Agreement with SUDDEUTSCHE-ELECTRICMOTOREN-WERKE GmbH, BRUCHSAL, then in WEST GERMANY, world renowned for compact and small size Case Hardened and Ground Teeth Co-axial type Gearboxes as well as Geared Motor units under the brand name of OPTIMAX® This was another milestone for NAW when such compact designed Gearboxes and Geared Motor Units were manufactured wherefrom a very high reduction ratio can be achieved. There are 8 models - each having Foot Mounted as well as Flange Mounted style. Highly productive Reishauer Gear Grinding-machine was 'imported along with-MAAG Gear Tester to make the product range. Design for variable attachment was also obtained which can be coupled with Geared Motor Units to vary the output RPM conveniently within very close range as per the requirement. Such units are manufactured under the brand name of VARIMAX®.

During 80's, the trend for Case Hardened and Ground Gearboxes was gaining momentum. Accordingly, NAW acquired this technology from JAHNEL KESTERMANN GETRIEBEWERKE BOCHUM GmbH, BOCHUM, leading manufacturer of GERMANY in 1984 and started manufacturing the Gearboxes under the brand name of HELIMAX®. There are 4 models i. e. single, double, triple and quadruple reduction types having minimum reduction ratio as 1.25:1 to a maximum of 630:1. These are parallel shaft Gearboxes but can be manufactured with right angle drive also by changing first reduction Helical Gear Set by a Spiral Bevel one. These Gearboxes are almost 1/3 in size as compared to ALLENMAX®' type for a given power rating. The surface finish and profile of gear tooth are more accurate as compared to those of ALLENMAX® because of ground teeth resulting into lower noise and vibration characteristics and, therefore, more users' friendly. HELIMAX® Gearboxes need less space, lubricating oil etc. and are, therefore, economical as compared to ALLENMAX® type Gearboxes. To manufacture HELIMAX® Gearboxes the available manufacturing facilities are common excepting CNC Gear Grinding machine and CNC Gear Testing machine, which were imported.

NAW's mission was oriented towards Product Quality and Quality Systems during its long journey. The continuous endurance for excellence resulted in being accredited with ISO-9001-1994 on 1 February 1995. The first company in gear manufacturing to achieve such milestone in India.