The Voice of
Torque Control

You are here: News & Events  >  Blog


Norbar - a potted history

For the many of you who probably don’t know, Norbar is a family owned and run business. Whilst in 2012 we have quite the global reach, we did have more humble beginnings. How does that phrase go again? “You don’t know where you’re going until you know where you’ve been”? Well, here’s a potted history of our life so far… In 1942, at the height of World War 2, Bill Brodey was engaged in selling various tools and machines including Joseph Sunnen honing machines used for honing cylinder bores of engines. Torque wrenches were already being imported and sold alongside the honing so it was smart business sense (supply and demand) when Bill and his friend Ernest Thornitt applied to the UK Ministry of Supply requesting permission to manufacture torque wrenches in the UK.   Torque wrenches were very much in demand for the manufacture of Rolls Royce Merlin aero engines and the UK Government was keen to manufacture in the UK wherever possible to reduce pressure on t ...

Read the rest of entry »

Norbar Shanghai – CNAS

On the 27th of June last year Norbar Shanghai’s calibration laboratory was recognized by CNAS accreditation. This joins China’s calibration laboratory with Norbar’s global group of nationally accredited labs. It also means that Norbar Shanghai’s calibration laboratory is recognised by the other countries’ accreditation bodies. Our calibration laboratory has the same accreditation level as the Chinese provincial measurement institutes; we can now calibrate 1-1000N.m torque wrenches and create calibration certificates. We have also received ILAC & TAF accreditation. Norbar Shanghai’s calibration laboratory can calibrate torque multipliers, displays and transducers and is the first professional lab in Chinese hardware, as the calibration laborator has been established by the company itself. We have finished the first step of 1-1000N.m CNAS torque wrench loader certification, but are now working on obtaining CNAS certification for all items in the lab. Once we h ...

Read the rest of entry »

From Spitfires to Airbus A380

At the start of November we exhibited at Advanced Engineering UK and within this wider group of events sat Aero Engineering 2012 which received a record attendance this year. We came away with some really valuable knowledge from the event and it prompted me to blog about this mammoth industry and how torque technology innovations have had such an impact. Given the sometimes conflicting demands of aerospace for unparalleled safety, whilst keeping weight to a minimum, no other industry has a greater need for control when using threaded fasteners. Norbar has been at the forefront of supplying torque equipment for the aerospace sector since WWII, when we supplied wrenches for the Rolls Royce Merlin engines that powered most of Britain’s fighters and bombers. Norbar produced its first torque wrenches specifically to help Rolls Royce engineers deal with the problem of uneven tightening of the cylinder head which leads to distorted cylinder bores.  In fact, several companies were licensed to build the ...

Read the rest of entry »

Norbar India: Another Jewel in the Norbar Crown

Norbar has had a very proactive distribution model in India for many years which has given us an excellent platform for growth.  However, there comes a point when the pressure to have a permanent wholly-owned presence in a country becomes too powerful to resist and Norbar has now reached that point. The decision to set up a sales and customer service operation in India, is driven by the phenomenal growth of the Indian economy.  Since its restructuring into a liberal market economy which began in 1991, India has become the world’s second fastest growing economy.  The figures speak for themselves.  In 2010, the Indian economy was ranked as the ninth largest in the world with a gross domestic product of $1.73 trillion. In comparison to the other major economies (with the exception of China) which have remained sluggish since the financial crisis of 2008, India enjoyed growth of 7.7% in second quarter of 2011.  28% of GDP is industrial, in fact India has one of the world&rsq ...

Read the rest of entry »

Torque and Aerospace

We’ll shortly be attending Farnborough International Air Show 2012 so it seems fitting that prior to this we consider torque in aerospace engineering. Now I know that Norbar’s specific offerings to this sector have been outlined already in a previous blog but it is also worth thinking about the industry as a whole and how torque application and measurement impacts aerospace manufacturing, especially with recent pressures to decrease fuel consumption for cost and environmental reasons. Wider industry concerns like this naturally impact on aerospace engineering which requires absolute precision and rigorous attention to health and safety details. In short, torque calibration and measurement play a vital role in maintaining the performance, reliability and longevity of vital equipment. Aerospace has a critical need to accurately control threaded fasteners. The accurate measurement and application of torque on joints and fastenings is critical for aircraft manufacturing and maintenance where clo ...

Read the rest of entry »

Norbar Sponsors Bloodhound Land Speed Record Bid

Correct torque settings have always been a feature of automotive design and maintenance - a topic well documented in some previous blogs. The industry has come a long way since the first Ford Model T’s. So much so that we are now manufacturing supersonic cars and striving to reach beyond the very limits of technology and engineering knowledge.   And it is this yearning for technological advancement in such an absorbing field that has led to Norbar joining the wide ranging list of specialist companies, educational and professional organisations, supplying products, services and expertise to the Bloodhound SSC (Super Sonic Car) project, which aims to push the world land speed record to an incredible 1,000mph. At a time of resurgent interest in UK engineering, Bloodhound is an exciting focus for British experience in this area and an inspiration for young people considering a career in this fascinating area of manufacturing and engineering.   As a Product Sponsor for the Bloodhound SSC proje ...

Read the rest of entry »

Do Torque Wrenches Need To Be Wound Back To Zero After Use?

Now, anyone working in torque knows that this isn’t an easily agreed upon topic.   Certainly, if the wrench is wound back at all it should not be adjusted below the minimum scale marking (usually 20% of maximum) - never to zero as this can adversely affect the calibration of the wrench. Beyond that, it really depends on the application. We have thousands of Production Type wrenches in service that are left at their setting for months on end without a problem. Whilst the occasional user should adjust back to the minimum scale setting after use, if you use the wrench in an environment such as a commercial garage, the choice is yours. Either way is acceptable.   However, to make sure we were absolutely 100% certain of this, we carried out tests over the past month. We wanted to ensure that we could answer this long debated industry question with the upmost accuracy. The test was completed recently, designed to show the effects of leaving a torque wrench wound up at 100% of full scale against ...

Read the rest of entry »

The Development of Torque Tool Standards

One of the things I enjoy most about my job is being a UK delegate for international standards development. In the early 1980s my father Ian became involved with BSI (British Standards Institution), the national business standards body for the UK and I continued after he retired. Currently I am involved with two ISO (International Standards Organisation) committees to revise torque tool standards and both have had meetings in the last week. On Monday we continued the revision of ISO 6789 2003 which has the wonderfully descriptive but rather elongated title: ‘Assembly tools for screws and nuts -- Hand torque tools -- Requirements for design conformance testing, quality conformance testing and recalibration procedure’. The Working Group is largely comprised of torque wrench manufacturers from around the world. Some fellow committee members I have known for 20 years. We know and respect each other and that really helps when we have different views on the standards, because it is easier to give way ...

Read the rest of entry »

Oil & Gas: Torque in a cold climate

In the early years of North Sea development, torque tools used in factories, refineries and offshore or subsea operations were generally modifications of standard models. It wasn’t long before specific oil and gas torque tools were brought to market, with Norbar one of the pioneers. Nowadays, a wide variety of torque tools are used for actuation and measurement at offshore and subsea locations, frequently manipulated using remote operated vehicles (ROVs).  Robotics has revolutionised the range and scope of projects that can be undertaken in a hostile deep water environment, such as the challenging undersea terrain encountered in the construction of the Langeled pipeline which links the Norwegian Ormen Lange gas field to the UK. There are a number of issues surrounding the use of torque multipliers in deep sea applications. The first issue is robustness.  With Langeled, for example, the fasteners securing the pipe sections had to be tightened to a precise torque using a calibrated instrument ...

Read the rest of entry »

Torque, what it is and why you need it!

Although many methods exist to join two or more parts together, the ease of assembly and disassembly provided by threaded fasteners make them the ideal choice for many applications.  The object of a threaded fastener, such as a bolt, is to clamp parts together with a tension greater than the external forces trying to separate them. The bolt then remains under constant stress and is immune from fatigue under normal circumstances.   Why then, I hear you ask don’t we just tighten our bolts as much as we possibly can?  No chance of anything coming apart then.   Unfortunately, it isn’t that simple.  If the initial tension is too high, the tightening process may cause bolt failure.  If that bolt is holding a wheel onto a Formula 1 car the consequences are obvious.  Equally, if the tension is too low, varying loads act on the bolt and it will also quickly fail.   There is therefore an optimum tension and the most reliable way of ensur ...

Read the rest of entry »

Pages: Previous1...45678910NextReturn Top

Product Selector

Find a Distributor

Norbar Videos

What Our Customers Say

Download Our Apps


Use Our Calculators

Norbar has devised easy-to-use online calculators that support the correct application of torque in three key areas:

  1. Unit conversion to assist international measurement definitions.
  2. Torque extension for setting correct values
  3. Torque tension to identify precise levels of torque to be applied for individual applications.

NORBAR TORQUE TOOLS LTD. Wildmere Road, Banbury, Oxfordshire, OX16 3JU, United Kingdom
Registered Office as above - Registered in England No. 380480 - VAT No. GB 119 1060 05