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Manual Torque Multipliers
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Manual Torque Multipliers

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Norbar gearboxes are built to an extremely high standard of precision. All gears rotate on needle roller bearings about hardened and ground journal pins. As a result, Norbar HandTorques can be relied upon to have a torque multiplication accuracy of +/-4%, throughout the operating range, taking the uncertainty out of high torque tightening.
No gearbox is 100% efficient and so the velocity ratio (the number of turns that
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Norbar Torque Tools Private Limited

Thane Belapur Road, Mahape, Navi Mumbai, Maharashtra
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Call +91-9922439923
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Norbar gearboxes are built to an extremely high standard of precision. All gears rotate on needle roller bearings about hardened and ground journal pins. As a result, Norbar HandTorques can be relied upon to have a torque multiplication accuracy of +/-4%, throughout the operating range, taking the uncertainty out of high torque tightening.

No gearbox is 100% efficient and so the velocity ratio (the number of turns that the input has to make to achieve one revolution of the output) is not the same as the torque multiplication ratio. Norbar multipliers are engineered such that each gear stage has a velocity ratio of typically 5.45:1 which results in a true torque multiplication factor of 5:1.


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Manual Torque Multipliers

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About the Company

Year of Establishment1942
Legal Status of FirmPrivate Limited Company
Nature of BusinessManufacturer
IndiaMART Member SinceDec 2011
Norbar is the world's leading torque specialist with one of the most modern and largest factories devoted exclusively to the design, development and production of torque tightening and measuring equipment.
Norbar is the only torque equipment manufacturer to be able to offer torque tool and instrument calibration & recalibration services to the original factory standard on four continents. The NATA accredited laboratory in Adelaide, South Australia and NVLAP accredited laboratory in Willoughby, Ohio, USA use the same equipment and procedures as the factory's UKAS accredited laboratory. The new SAC-SINGLAS laboratory in Singapore now has the same facilities for Asian customers.
In addition to this, most of Norbar's distributors offer repair , calibration & recalibration services. Several have calibration accreditation by their local standards organisations.
Norbar is owned solely by the descendants of the founder, Bill Brodey, and they remain every bit as passionate about providing customers with high quality, value for money products and services.
The company was established in 1942. The "North Bar Tool Company" (as Norbar was then known) became the first company in Britain to commercially manufacture a torque wrench. The initial demand was driven by the need for the gasket-less cylinder head of the Rolls Royce Merlin engine to be accurately tightened. Bill Brodey and his partner Ernest Thornitt obtained a license from Britain's war-time Government to begin manufacture of torque wrenches and Norbar was born.
Since then, Norbar has continued to invest in the very latest design, manufacturing and quality control technology to achieve the highest level of innovation and precision in the field of torque control equipment.
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