Norbar improves its rotary torque transducers
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Norbar Torque Tools product story
Edited by the Engineeringtalk editorial team
Jun 2, 2000
Norbar Torque Tools is introducing a completely new range of Rotary Torque Transducers that are more compact, have a wider calibration range and are even more rugged than earlier models.
Norbar Torque Tools is pleased to introduce a completely new range of Rotary Torque Transducers that are more compact, have a wider calibration range and are even more rugged than earlier models.
Norbar has been manufacturing Rotary Transducers for more than 15 years and in that time has built a fine reputation for quality, accuracy and reliability.
The new design aims to take that reputation to new heights.
Rotary Transducers are designed to measure the torque and angle or torque and speed from rotating shafts.
Norbar designate their transducers "Standard" and "Impulse".
The Standard type are designed for long duty cycle applications such as monitoring the output from a motor.
The Impulse type are optimised for short duty cycle applications such as measuring the torque output of power tools including impulse wrenches.
There are seven models, one with a 1/4-inch hexagonal shaft and six with square drive shafts of 1/4, 3/8, 1/2, 3/4 or 1-inch.
The torque range is from a maximum of 15 N.m with the 1/4 inch drive to 1500 N.m with the 1 inch drive.
All are classified to BS7882: 1997 and are typically better than Class 1 for the primary classification range (+/-0.5% of reading).
As an indication of how compact the new design is, the 15 N.m transducer is only 32mm wide, 6mm less than the previous model.
The 1/2 inch square drive model now offers a maximum measuring capacity of 250 N.m, almost double that of the previous model.
Previous models were calibrated from 10% to 100% of full scale but the new ones are calibrated from 5% to 100%.
This wide calibration range means that often a range of applications can be covered with fewer transducers.
In selecting torque ranges, Norbar has taken note of customer comments and actual applications.
For example, the automotive industry is typically applying 10N.m to an M6 bolt.
A 10N.m transducer is not sufficient bearing in mind the allowable tolerance.
The new 15 N.m model with its wide calibration range is more than up to the task.
An angle measuring facility is now an option on all models, made possible by a 2-channel quadrature angle encoder that can be read by the Norbar "Pro-Log" and other instruments.
This allows torque and angle control of power tools and sophisticated analysis of tightened bolts for quality control audit or research purposes.
These transducers are natural partners to the recently introduced Pro- Log, an electronic torque tester and data store that is perfect for in situ testing or calibration of portable power tools, torque wrenches and similar equipment.
A "SMART" feature incorporated on the new Rotaries means that once the transducer is connected, the Pro-Log recognises it and reads the type, serial number and calibration data.
There are no amplifier units to plug in or data to input so the system is instantly ready for use.
A Rotary Transducer plus a Pro-Log unit offers a completely portable, battery powered, torque and angle measuring system with a comprehensive data collection and analysis capability.
Not what you're looking for? Search the site.
Contact Norbar Torque Tools
Tel +44 1295 270333
Other Norbar Torque Tools stories
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Norbar presents torque measurement data
Norbar has launched a torque measurement, calibration and data-archiving system. -
Fixture tests pneumatic torque-wrenches in-house
Norbar Torque Tools has introduced a bench-top Power Tool Test Fixture for testing pneumatic torque-wrenches such as Norbar's Pneutorque range. -
Norbar expands range of Trutorque wrenches
Norbar has extended its range of Trutorque torque wrenches with two models suited to tough environments. -
Norbar Torque Tools offers Trucheck Plus
The Trucheck is a torque wrench tester with an accuracy of +/- 1 per cent and a range of up to 1000Nm. -
Easy ultrasonic measurement provides load details
The USM-3 can provide a 0-10V analogue output to precisely shut off torque tools when a predetermined bolt stretch or load has been attained.
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