SAE J2487 SAE No.2 Friction Test Machine 3600 r/min Stepped Power Test
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SAE J2487 Document Information:
Title
SAE No.2 Friction Test Machine 3600 r/min Stepped Power Test
SAE International
Publication Date:
May 1, 2007
Scope:
This SAE Recommended Practice is intended as the definition of a
standard test, but may be subject to frequent change to keep pace
with experience and technical advances. This should be kept in mind
when considering its use.
The SAE No. 2 Friction Test Machine is used to evaluate the
friction characteristics of automatic transmission plate clutches
with automotive transmission fluids. It can also be used to conduct
durability tests on wet friction systems.
The specific purpose of this document is to define a 3600 r/min
Stepped Power Test for the evaluation of wet friction system
performance variation as a function of power level. This procedure
uses an initial engagement speed of 3600 r/min and is intended as a
standard procedure for common use by both suppliers and end
users.
The only variables selected by the supplier or user of the
friction system are:
a. Friction Material
b. Fluid
c. Reaction Plates
These three variables must be clearly identified when reporting
the results of using this test. If any of the test parameters or
system hardware as described in this document are changed, other
than the friction material, test fluid, or reaction plates, the
data may not be reported as having been obtained using this
document.
This procedure is not intended to evaluate the initial
coefficient or break-in characteristics. For this information,
refer to SAE J2490 SAE No. 2 Friction Test Machine µPVT Test.
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