CETR offers a wide range
of solutions to meet your tribology and mechanical testing, research and
If you wish to perform your own tests, CETR manufactures and sells the world's most advanced tribometers, backed by a full warranty, outstanding customer service, on-site installation and in-depth training.
If you would like testing
performed for you, CETR lab performs a wide range of tests to meet your testing
needs. Strict confidentiality of your data is always guaranteed.
multiple-configurations fully-computerized UMT testers of the unique acclaimed
modular design can perform practically all common tribological tests, which has
made them the most widely used tribometers in the world.
the typical tests routinely run on the UMT-series tribometers:
Pin/ball-on-disc with an either reciprocating (spiral wear track) or rotating (crater-like wear track) or stationary (circular wear track) upper pin or ball (from 1 to 25 mm) on an either rotating or stationary disc (up to 150 mm),
Disc/ring-on-ring/disc with both or one of the disc/ring rotating,
Pin/ball-on-plate with an either reciprocating or rotating or stationary upper pin/ball (from 1 to 25 mm) on an either linearly-reciprocating or stationary plate (up to 150 mm),
Flat-on-flat with self-aligning specimen holders and at least one of them linearly-reciprocating; when both of them are linearly reciprocating in perpendicular axes, a controlled ratio of their frequencies allows for either circular (ratio of 1) or butterfly-wings (ratio of 2) or other programmable wear track patterns,
Block-on-ring/wheel with a rotating ring/wheel/bearing/seal (including standard Timken and Falex rings) and either stationary or sliding block or plate:
Seal Durability Test | PDF file, 213 Kb
Cylinder-on-cylinder, with either one or both of them rotating and one of them sliding on the other at the programmable angle from 0 (parallel axes) to 90 degree (perpendicular axes),
Screw-in-nut or drill-in-hole, with either screw/drill or nut/hole rotating and either the same or other specimen moving in and out of the thread/hole:
Tribology Testing of Fasteners: Optimization of Materials | PDF file, 318 Kb
Numerous tests of fuels, oils, greases and solid lubricants:
Paper at World Tribology Congress on Oil Testing (PDF)
Lubricating Properties of Oils | PDF
Numerous tests of coatings:
Multi-Sensor Testing of Thin and Thick Coatings for Adhesion and Delamination |PDF file, 59 Kb
In all these and numerous other tests, the UMT can perform an automated
synchronized control of several specimen motions with linear speeds from 0.1
micron/s to 30 m/s (7 orders of magnitude!) and angular speeds ranging from
0.001 to 7,000 rpm, under the precision loads from 1 ?N to 1 kN (9 orders of
magnitude!). In these unprecedented wide ranges, the UMT can automatically
monitor a number of process parameters in-situ with a high sampling rate:
Normal load (servo-controlled, constant or changing, e.g.,
Friction force, torque and coefficient (static and dynamic),
Wear depth and rate,
Contact high-frequency acoustic emission,
Electrical contact resistance,
Temperature and humidity.
The above tests can be performed in optional controlled environmental
conditions, including temperature from -25C to 1,000 �C, humidity from 5 to 95
%RH, various gases, vacuum (to 10E-6 torr).
For more detailed
descriptions and information please click the link below:
UMT Main |
For some of the archival-quality test results obtained by scientists all over the world on the UMT testers, please follow the links below.
Contact CETR to discuss your testing needs in detail, for more information and pricing or to set up an appointment to visit our lab in Northern California. You will surely be pleased with our wide expertise, unique equipment and friendly effective services.