Company News | Page 5 of 6 | Link Engineering

LINK Pays Tribute to Veterans

Nov 12, 2015

This past Wednesday, November 11, was Veterans Day. We would like to take a minute to thank all those who have served for their sacrifice and dedication. The following is a list of veterans we would like to personally acknowledge. For any who may not be on the list,...

John Mack Joins the LINK Team

Oct 29, 2015

We are extremely pleased to announce and welcome John Mack as a new addition to the LINK team. John will serve as Vice President - Asia, as well as Managing Director of LINK's China operation. He is based out of our Shanghai office. John brings a wealth of experience...

Roy Link Receives the 2015 Horace H. Rackham Humanitarian Award

Jul 14, 2015

The Engineering Society Board of Directors (ESD) has selected our very own, Roy Link, Chairman and CEO of LINK, as the recipient of the 2015 Horace H. Rackham Humanitarian Award. This award is ESD's highest honor and we could not be more proud of Roy and his...

LINK China Receives ISO 17025 Certification for Calibration

Jul 1, 2015

LINK China has recently received their ISO 17025 accreditation for calibration. This achievement further validates the progress LINK China's operations have made to provide local support for LINK test equipment independently. "While LINK China has been accredited up...

LINK Celebrates the Delivery of the 100th Model 3900 Dynamometer

Jul 1, 2015

On Wednesday, June 3rd, Link Engineering Company recognized the delivery of the 100th Model 3900 Dynamometer. This is an important milestone for our company as we continue to add value to the global brake testing industry. When brake noise was first recognized as a...

Link Engineering Company Celebrates 80 Years

Apr 14, 2015

2015 - Link Engineering Company celebrates 80 years of business. In commemoration of its 80th anniversary, Link Engineering decided to look back on some of the important moments that helped to shape the company into what it is today. EARLY HISTORY In 1926, Herbert...

Huangshan Testing Facility Now Open for Business

Apr 1, 2015

For more than a year, Link has conducted on-road vehicle testing throughout the Anhui Provence of China. This past October, Link officially set up shop and opened a new testing facility in Huangshan. Link's area presence initially began with brake lining wear testing...

Link Engineering Announces ECE R90, RP628 Qualification, & New Equipment for their U.S., China, and European Test Labs

Feb 13, 2015

Plymouth, MI - This week, Link Engineering Company released information on expansions to their test laboratories, added capabilities and new testing certifications for their US and international divisions. "Link provides brake testing services to vehicle...

Link Engineering Purchases DTE

Dec 2, 2014

Plymouth, MI - Link Engineering Company, a leading global supplier of precision testing equipment and premier provider of comprehensive testing services, today announced it has acquired Dynamic Testing & Equipment, LLC (DTE), a global supplier of structural test...

Tim Duncan Honored with the SAE Outstanding Achievement Award

Jul 1, 2014

SAE International announces that Tim Duncan, Executive Vice President, Link Engineering Company, has been honored with the 2013 SAE Technical Standards board Outstanding Achievement Award. WARRENDALE, Pa. (April 28, 2014) - SAE International announces that Tim Duncan,...

Type of Test	Test Highlights	Equipment Used	Example Procedures
Chemical Testing	Measurement of copper, asbestos and other elements in brake friction materials	ICP-OES / PLM	J2975
Materials Testing	Physical properties including quality control for friction, wear, compressive strain, shear strength, corrosion resistance, swell and growth	Chase Machine / Compressibility Machine/ Shear Machine / Corrosion Chamber / Environmental Chamber / Oven	J661, ISO 6310, ISO 6311, ISO 6312, ABNT NBR 9301, ABNT NBR 5505, ABNT NBR 5537, ASTM B117
Frequency Response	Component Frequency Response	Laser Vibrometer Test Stand	SAE J2933, J3001, J2598, L-4375
Structural Fatigue and Durability	Breaking strength, cyclic fatigue	Servo Hydraulics, Torque Flex	J2995, C419, C441, GMW18022
Caliper Fingerprinting	Caliper characteristics such as knockback, rollback, fluid displacement, deflection...	Caliper Test Bench / Brake Dynamometer	L-4177, PF.90257
Brake Drag and DTV	Residual drag, disc thickness variation, brake feel and vehicle fuel mileage	Off Brake Drag Stand / Brake Dynamometer	J2923, GMW14926, GMW14351, PF.90257, L-13080
Performance	Hydraulic, air and electric brakes, friction levels, stopping distance, corrosion, cleanability, brake torque variation, rotor cracking, regulation, stability control, coastdown	Brake Dynamometer, Model 4000 DAS	J2784, J2928 IS026867, GMW14985, PF.90210, PF.90244, L-405, FMVSS 121, FMVSS 122, FMVSS 105, FMVSS 135, FMVSS 126, FMVSS 136, ECE R13H, AMS
Wear	Rotor wear, drum wear, lining wear, DTV, durability, city traffic, suburban traffic	Brake Dynamometer, Model 4000 DAS	J2707, USCT, L-423, PF.90244, Los Angeles, Detroit, Phoenix, Birmingham, Marquette
NVH	Brake squeal during drag and decel events at different temperatures, pressure and torque levels	NVH Brake Dynamometer	J2521, L420, 1430, GMW17427, PF. 90244
Brake Emissions	Brake dust particle size, count, concentration and mass	Brake Dynamometer	WLTP, CARB, Duty cycle

Type of Test	Test Highlights	Equipment Used	Example Procedures
Parking Forces	Allows proper sizing of power steering components	Force and Motion	LINK Parking Forces
Tire Footprint	Determines the contact patch geometry	Force and Motion	Tire Footprint
Tire Modeling	Determine tire inertia which is then used Ftire and other models and simulations	Inertia Machine	LINK Tire Inertial Properties
	On-center parking effort test for Ftire input	Force and Motion	SWP
	Determine static stiffness (X, Y, Z, Alpha) for Ftire input	Static Stiffness Machine	SAE Static Stiffness
	Determine how the tire envelopes an obstacle	Cleat Machine	J2731
	Measure the forces and moments generated at a high frequency response spindle when the tire impacts a cleat	Cleat Machine	J2730
Braking and Cornering Performance	Determine the straight line braking performance of a tire	Force and Motion	J2673
	Determine the free rolling cornering properties of a tire	Force and Motion	SAE TIME, J1987, SWP
	Measure the combined cornering and braking performance of a tire	Force and Motion	J2675
Tire Stiffness	Measure rolling vertical stiffness of a tire at speed		Rolling Vertical Stiffness
Rolling Resistance	Measure tire rolling resistance using a drum	Force and Motion, Rolling Resistance	J1269, J2452
Tire Wear	Assess tire wear in the lab	Force and Motion	LINK Wear Test
Tire NVH	Test tire sizzle, cornering noise, pass-by noise, steering wheel dither, freeze crack impacts, high speed uniformity and imbalance sensitivity	Force and Motion, Dynamometer, Model 4000 DAS	Noise, Vibration, Harshness

Type of Test	Test Highlights	Equipment Used	Example Procedures
Chemical	Evaluates filiform corrosion on painted aluminum wheels and painted aluminum trim	ICP-OES	ASTM E3061
Wheel Corrosion and Coatings	Evaluates filiform corrosion, tape adhesion, degree of rusting on painted aluminum wheels and painted aluminum trim	Corrosion Chamber	SAE J2635, ASTM B368, ISO 9227, ISO 2409, ASTM D3599, ABNT NBR 11003, ASTM D610, ASTM D1654
Wheel Fatigue	Load simulation test of aluminum alloy wheels	Biaxial	BMW QV36026, SAE J2562, FORD L-307, GMW14340
	Dynamic Cornering Fatigue and Dynamic Radial Fatigue - Steel wheels	Eccentric Mass and Radial	ABNT NBR 6750
	Rotational fatigue, Radial load fatigue and biaxial load fatigue of steel and aluminum wheels	Eccentric Mass, Radial and Biaxial	ABNT NBR 6751
	Dynamic Cornering Fatigue and Dynamic Radial Fatigue and Impact resistance of temporary use and normal highway use aluminum wheels	Eccentric Mass, Radial and Drop Test	ABNT NBR 6752
	Wheel Radial Fatigue	Radial	GMW14909
Wheel Impact	Wheel Inboard Rim Flange Vertical Impact	Drop Test	GMW15321
	Wheel radial impact	Drop Test	CETP 04.04-L300
	Wheel Lateral Impact	Drop Test	GMW14910, SAE J175
Wheel Stiffness	Frequency Response Function (FRF)	Frequency Response	GMW14876
Wheel Stiffness	Deformation of the wheel	Servo Hydraulics	J2315
Center cap heat resistance	Center Cap deformation under elevated temperature conditions	Bench Test	Brake Heat Center Cap

Type of Test	Test Highlights	Equipment Used	Example Procedures
Wheel Bearing	Water intrusion and durability when exposed to mud and salt	Bearing Test Stand	LINK Hub and Bearing, GMW16306, GMW16310
	Passenger car, sport/performance and open bed vehicle wheel bearing spalling	Bearing Test Stand	GMW16311, GMW16308, GMW16309
	Brinelling resistance validates long-term reliability/durability	Bearing Test Stand	GMW16305
	Rotary fatigue life	Rotary Fatigue Machine	GMW16325
Wheel Hub	Rotary bending fatigue life characteristics	Rotary Fatigue Machine	GMW14249
Hub/Bearing	Evaluate hub and bearing performance, durability, seals and NVH when exposed to extreme environmental effects such as temperature and mud/salt solution	Bearing Test Stand/Rotary Fatigue	TIP-000037A, LINK Hub and Bearing, SAE J1095, LINK Impact
Hub Fatigue	Hub fatigue using biaxial loading	Biaxial Test Stand	SAE J2562

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