Center for Tribology Research

Solutions for Lubricant Research

Chemicals

Lubes, oil, grease, cutting fluids, metal working liquids, additives

Engine Components

Piston liner, bearings, nuts, fasteners, solid lubricants, self lubricated coatings


CETR offers a wide range of solutions to meet your lubricant and oil research and analysis needs. Our fully-computerized testers of the unique acclaimed design can perform practically all common tribological tests , which has made them the most widely used tribological testers in the world.

In all these and numerous tests, the tool 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 1200 N (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

The tool comes with the optional add on environmental chambers that can go from -40 to 1000 degree C, under vacuum or under humidity or gases.

Click Here to learn more about the UMT-3 tester

Click Here te learn abotu ASTM Test Standards

Typical tests run on the UMT-3 tester include:

  • 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:
  • 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.
  • Numerous tests of fuels, oils, greases and solid lubricants:
  • Variable rolling to sliding test
  • Butterfly stroke test
  • Gear testing

Published Papers and Applications

Different Tribology Modes

Effective Tribology Testing of Oil and Greases
Lubrication Journal Mar 2007

Structure and Properties of novel lubrication and wear resistance gradient in non crystalline alloys

Low Friction Ring pack for Gasoline Engines
ACME 2006

Tribology Testing of Nano Additives in Oil
TAE 16th International Colloquium 2008

Friction Characteristic of Clutches

MORE PUBLISHED PAPERS


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.