ASTM_D_2670_-_95_2016.pdf

Designation:D267095(Reapproved 2016)Standard Test Method forMeasuring Wear Properties of Fluid Lubricants(Falex Pinand Vee Block Method)1This standard is issued under the fixed designation D2670;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the U.S.Department of Defense.1.Scope1.1 This test method covers a procedure for making apreliminary evaluation of the wear properties of fluid lubricantsby means of the Falex Pin and Vee Block Lubricant TestMachine.NOTE1Certain fluid lubricants may require different test parametersdepending upon their performance characteristics.1.2 The values stated in inch-pound units are to be regardedas the standard.The values given in parentheses are forinformation only.1.3 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:2B16/B16M Specification for Free-Cutting Brass Rod,Barand Shapes for Use in Screw Machines3.Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 actual gauge load,nthe value obtained from thegauge while running the test and before any corrections aremade.3.1.1.1 DiscussionThe gauge reading is irrespective of theparticular gauge used,and corrections are made by comparisonto a standard reference.3.1.2 direct load,nthe load that is applied linearly,bisect-ing the angle of the vee block corrected to either the 800 lbf or3000 lbf gauge reference.3.1.2.1 DiscussionThis load is equivalent to the true loadtimes the cos 42.3.1.3 true load,nthe sum of the applied forces normal tothe tangents of contact between the faces of one vee block andthe journal pin corrected to the 4500 lbf gauge reference line.3.1.4 wear teeth,na measurement of wear,which in thistest,is based on the number of ratchet wheel teeth advancedduring the test while maintaining load.3.1.4.1 DiscussionThe number of teeth is directly relatedto the total wear(inches).4.Summary of Test Method4.1 The test consists of running a rotating steel journalagainst two stationary steel V-blocks immersed in the lubricantsample.Load is applied to the V-blocks and maintained by aratchet mechanism.Wear is determined and recorded as thenumber of teeth of the ratchet mechanism advanced to maintainload constant during the prescribed testing time.5.Significance and Use5.1 This test method may be used to determine wearobtained with fluid lubricants under the prescribed test condi-tions.The user of this test method should determine to his orher own satisfaction whether results of this test procedurecorrelate with field performance or other bench test machines.If the test conditions are changed,wear values may change andrelative ratings of fluids may be different.6.Apparatus6.1 Falex Pin and Vee Block Lubricant Test Machine,3illustrated in Figs.1-3.1This test method is under the jurisdiction of Committee D02 on PetroleumProducts,Liquid Fuels,and Lubricantsand is the direct responsibility of Subcom-mittee D02.L0.11 on Tribological Properties of Industrial Fluids and Lubricates.This test method was prepared under the joint sponsorship of the AmericanSociety of Lubrication Engineers.Accepted by ASLE in May 1967.Current edition approved Jan.1,2016.Published February 2016.Originallyapproved in 1967.Last previous edition approved in 2010 as D2670 95(2010).DOI:10.1520/D2670-95R16.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.3The Falex Pin and Vee Block Test Machine available from Falex Corp.,1020Airpark Dr.,Sugar Grove,IL 60554 has been found satisfactory for this purpose.Anew model of this machine has been available since 1983.Certain operatingprocedures are different for this new model.Consult the instruction manual ofmachine for this information.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 7.Reagents and Materials7.1 Required for Calibration of Load Gauge:7.1.1 Allen Screw,with attached 10 mm Brinell ball.47.1.2 Back-Up Plug.47.1.3 Standard Test Coupon,4soft,annealed copper,HB 37to 39.7.1.4 Brinell Microscope,or equivalent,7.1.5 Timer,graduated in seconds and minutes,and7.1.6 Rule,steel,6 in.(approximately 150 mm)long.7.2 Required for Test:47.2.1 Standard Coined V-Blocks,496 6 1 angle,AISIC-1137 steel HRC 20 to 24,surface finish 5 in.to 10 in.(1.3 107to 2.5 107m),rms,7.2.2 Standard Test Journals,414in.(6.35 mm)