Document 8OQ7w1OO8037z5waQmvRboB65

CONFIDENTIAL 0 FOR INTERNAL USE ONLY DISTRIBUTION: R. Mack R. Dlrksen J. Kozdron M. Collins K. Patel A I R F L E X TEST REPORT <3. UtskbiN ROUTE: HC, TCK, RRi . ms, js, m.U V 0 \ 0,v4:i- 'sf T- , .I .XU. TITLE CS-CT FRICTION MATERIAL fSCAfl-PAC) PROJECT NUMBER PROJECT ENGINEER Z0952-4 TEST DATES J. LatSkO & T. Mowry TEST STAND' _ -4-- jif-v :i i %.. j?1 TECHNICIAN (S) APPROVED BY J J. Denk__________ v_ ->/ - jff f ^ ( N'* 0 ' I "r i*.. ..$ V rO %-. "+ " ` : REPORT DATE November 9. 1979 1 . 0 ' A B S 'T - R ACT 40 ' 4:;6 e. Three non-asbestos types of friction materials were tested and compared to previous ' XT '? .. '^4;:,+*' .. data for CS-CT frlction material"(Fenner 333 friction material). Two of the materials had higher overall ,poeffIdehts of friction than the Fenner material, but, due to the "hard cured0 0|1dit4of the two linings, cracking of the material In an actual brake appl 1 cation could(be> a problen and would have to be tested. It Is recommended that C -- ..-fPZy i} . !0 further screening of additional materials be pursued before actual brake testing. 'V S-0'' If: 0 , V* I. - E-38 mm, SCF-EC-1780 FAW 09783 TEST REPORT: Z0952-4 Page Two 2.0 PREFACE: At present, Fenner 333 1$ our only acceptable and available CS-CT lining. There Is a possible alternate material from the Scan-Pac Company. The testing of this material Included dry and oil soaked^, wear rate, and rivet hole strength. The Scan-Pac material Is a non-asbestos extruded material using flberglas in place of asbestos. | ! ", , 3,0 O-iBli-JiE.i Ci TiiIVrEii: ! ./u/ ' ^^ V' ;i>. `--Iv JS To determine If three Scan-Pac materials are acceptable for use;in;CS-CT\ ~ brakes. . ' -' 4.0 CONCLUSIONS: ''' ' '' . r ' .- V , t;. *{! ''M ' . . 'll. -* \+. "? . Two of the tested linings (MF-28-3D and SPC-28-8A) are performance-wise acceptable for use In CS-CT brakes (providing the coefficient of friction is not too high); however, since they are "hard cured";11nlngsi cracklng of the friction material may be a problem. Thus, the linings would have to be "life tested" on an actual brake before they could ,be;qual 1 f,1 ed. 5.0 RECOMMENDATION: '3 2 That additional friction material screenings1je*Cpnducted before selecting material(s) for "life testing" on an actual'brake. 6.0 TEST EQUIPMENT: : _A * ,5 6.1 Friction Material Test Machine - See 0000 0000 H General Test Procedure % /' '' 6.2 Electric balance scale M/N P323 6.3 6.4 6.5 6.6 Micrometer Orl".. - r1' a .<>*-. %.... Desiccant/jar to store sample sae 3o: oh . ;*/ ^ v :/v Vis ' Rivet shear jig - see Test Report Z0952-1 6.7 .Load ceil (1,000 lb.) 6.8 Strlpichart recorder. Brush Model #240 6.9 /CfSamples of friction material (Scan Pac) SPC-28-8A, MF-28-3D, RF-28-3M, yFenner 333 V. FAW 09784 TEST REPORT: Z0952-4 Page Three 7.0 PROCEDURE: 7.1 Strength: The rivet hole strength test was performed on 2" square pieces of friction material. See Test Report Z0952-1 for apparatus, procedure and description of the testing of Fenner 333. ; 7.2 Wear-In: '' The friction material was cycled one second on and two seconds off fori-" about five hours until a stable torque was obtained. Dmn speed wasj' 200 FPM with 75 PSI of engagement pressure and a drum temperature of 225F. 4*"* / 7.3 Wear Rate and,* x '% j:!*v ;;t.i is . ; The Scan-Pac was tested by the same procedure as thattisdd for Fenner 333 In Z0952-1. The friction material was cycled gne, second on and two seconds off until a minimum of .005" of,wear was obtained. The drtan speed was 200 FPM with 300 PSI of engagement pressure and a drum temperature of 225F. r'r-- \,,J ixx* /'j ** '' -. 7.4 Oil Saturation: ---f "\ Pieces of friction material ^re^oakedlnSAE 30 oil for 30 minutes and J then dabbed dry. They were then cycled for one second on and two seconds off at 400 FPM with 75 PSI of engagement pressure. The drum temperature was maintained at 125F; After 1,000 cycles, theX< versus number of cycles was plotted on agraph. : " 8.0 TEST RESULTS: <4^ 8.1 Rivet Hole Strength: - ? V" .f ; /" The three pieces of Scah-Pac friction material were comparable to Fenner 333, Over liOOO lb*s. of force was needed to move the material .190 In. See Tahiti 2, ; 8.2 V Wear Rate by/Volume: .:r` 5=s. j? '- *TheenneH333 friction material had a wear rate of 115 HP hr./cu. In,' The Scan-Pac #RF-28-3M wore at a rate of 140 HP hr./cu. In., and the other two Scan-Pac samples wore at a rate of a little more than 400 jHP hr./In.3. See Table 12.2. 8.3. Coefficient of Friction M.: The average^ for Fenner 333, at the test parameters, was .43, while V the value for Scan-Pac friction materials ranged from .48 to .53, See Figure 12.1 and Table 12.2. ' r- FAW 09785 TEST REPORT: Z0952-4 Page Four 8.4 Oil Saturation: The torque recovery of the 5ca.n-P.ac friction materials, because they were less porous than Fenner 333, was higher than that of the Fenner. . .MF-28-3D recovered almost 90S? during the 1,000 cycles. See Figure 12 1 9.0 DISCUSSION: ;s 9.1 Noise: .i . _ >:'r i ; All three Scan-Pac materials produced some noise. There was;no noise ; from the Fenner 333 during the Z0952-1 Test. v: \ %. 9.2 Fragility: All three Scan-Pac materials were "hard cured", and,' thus^ without the flexibility of the woven Fenner 333, may present.a cracking problem on CS-CT brakes. The SPC-28-8A appeared especially brittle and a small piece broke off during the wear rate test; - ; 9.3 Torque Stability: . ..-A- "i' ^ t:^fi ' The friction coefficient of RF-28f3M had built up to a stable condition; during the wear-in cycling at 75 PSf. Then*this coefficient decreased 14% during the 3,500 cycles of wear rate testing with 300 PSI of load. The coefficient of the other two Scan-Pac samples and of the Fenner 333 became stable within 5% after 1,000 cycles. See Figure 12.1. 10.0 BIBLIOGRAPHY: . Test Report Z0952-I *' 11.0 CALCULATIONS: ,.N '^ . ' C See FMTM Standard .Test procedure #0000 0000 H. 12.0 APPENDIX: *; > : 12.1 Coefficient of Friction as a Function of Number of Cycles During Wear .Rate, and Qurfng Recovery From Oil Soaking 12.2 Wear Rate,, and Rivet Holding Force Data FAW 09786 NO. 34DR-10 OIETZGEN GRAPH PAPER lO X IQ PER INCH OIETZGEN CORPORATION MAOKIN U.0.A. CS-CT FRICTION MATERIAL (SCAN-PAC) o' : GR-930 ' FIGURE 12.1 FAW 09787 usagevalue$ are expefcted to be different.; W- / Z095** 'X--y. < ' ' '<;. .') h* 'r ....... lining MF-28-3D RF-28-3M SPC-28-8A Fenner 333 CS-CT FRICTION MATERIAL (SCAN PAC) TABLE*ii.Z * * x * rvsi *' - ' ,Vk, V '$9 WEAR RATE./U . AND RIVET HOLDING FORCE BATA t fc ::A rtf;, 4 . , h,,C&^ . t' _*%f >' &*; V 5 >$ "S?v ^sMs-K^igiga WEAR TEST AVG. >6C HP-HR ./IN.3 YAN6ftrrtAL FORCE. '-. , \.': LBS ^ : '- '' TO PRODUCE' .190" WT. m. OF MOVEMENT ` . . . .;. >.'' GOHMENTS >*.. v . *-'' assiplpi ?;|# ' . 52 315 405 . 1200 . Squeal M jtea .48 173 140 .53 398 432 .43 116 115 1150 1035 n<ft , Small squeal, torque decreases with wear. Noise just at start-up , . m MT<% . ,: \;v (cool); small plebe broke' ' , off trailIno edqe. - . -r I |ill ; .. -PAtaL.is. .tom JMfcl__________ r.*5> C ;- "i \i > ' w * mm fcsSHiiiSiSB FAW 09788 DISTRIBUTION; i R. Mack R. Burks J. Kozdron . M. Collins . K. Patel R. Smith (4) J. Latsko ROUTE: MS, RR, TK, JT DATE AIRFLEX TEST REQUEST July 15, 1983 REQUESTED BY Jim Latsko TEST DESCRIPTION NON-ASBESTOS STANDARD COEFFICIENT FRICTION MATERIAL EVALUATION ON 14VC500 CLUTCH 3,1 " TEST STAND 300HP PART NUMBER/S 42x223 FLOW CONTROL VAtVE - - f*Yv PARIS LIST Y OR Z NUMBER 10259-4 1.0 PREFACE: Because of the potential health hazards associated ,>fit$lsbe|toss,"including the possibility of additional govenment controls and/or regulatipns, it is desirable . to eliminate the use of asbestos in our frictipa inaterials. j 2.0 OBJECTIVE: /V ,\j. . The objective of this test is to qualify/rion-asbestds friction materials as suitable for normal VC element usage. - -t, v ". ' -j. ** ' 3.0 INSTRUCTIONS: . ," - 3.1 WEAR IN: Using a 14VC500 and a new/refjnished drum with friction material as specified by the writer, wear in the friction material"at 340 RPM, 250F drum bulk temperature, 75 ' PSI effective pressure per the Basic Inertia Acceleration Standard Procedure #ABCDEJKLQRTU 0062 0000 C. ** ' 3.2 PERFORMANCE: -V" ' - - . V *. ,* - I *1 Utilizing the-3.1 procedure, conduct performance tests at 150F, 250F, 350F, 450F, 550F, andiI50F; however, after each of the preceeding conditions, obtain a static ' , torque data point.utilizing the "pullout" test method. Plot average torque versus ' average drum' temperature. . 3.3 HIGH ENERGY: \-J . If:-performance test results warrant further evaluation, conduct a 100 PSI - effective flow controlled 4 sec. to 8 sec. (slip time) high energy inertia acceleration (ambient to 100F starting drum temperature) to 340 RPM, with sufficient accelerations to establish stabilized acceleration characteristics. 3.4 WEAR: If the above test results warrant further evaluation, conduct a wear test with new friction material and a new/refinished drirni per the 3.1 procedure. Jim Latsko Jl:jo ' FAW 22672 datf. DISTRIBUTION: R. Mack R. Burks J. Kozdron M. Coll inis K. Patel R. Smith (4) j. Latsko - ^ I- ROUTE: MS, RR, JT, TK - AIRFLEX TEST REQUEST October 6, 1983 REQUESTED BY J. Latsko TEST DESCRIPTION FRICTION MATERIAL SCREENING FOR CB APPLICATIONS TEST STAND FMTM_____________________ PART NUMBER/S ____________ V? , PARTS LIST _, , , , 1.0 PREFACE: Y OR Z NUMBER '' YQ2S9-3 I f ``if? :jT i/'*" Because of the potential health hazardsj^sociated with asbestos, including the possibility of additional government%con%rols and/or regulations, and including increasing numbers of customer reqties|s for nori-asbestos linings, it is desirable/ required to eliminate the use of ashestos inodr friction materials. 2.0 OBJECTIVE: The objective of this test-jS'to qualify non-asbestos friction materials for normal CB usage. V 3.0 INSTRUCTIONS: ** - 1 ' Using materials spblrritted by the writer, perform automatic drum driveline dec-eleration tests p'er: the following: Drum 4esttemperatures: 100F (wear-in thru stabilization), ;V 200F, 300F, 400F, 100F, 200F (wear-test). .Drum test spefed: 3000 FPM initial velocity. %` '"a S Sr:v*. '' . ^ ,,Test:stand inertia: 60 lb.-ft. ied pressure: 75 PSI Jim Latsko" 'Jtl: jo VJOOv. "Cy :i>i `ui * E-39 FAW 10285 DISTRIBUTION: R. Hack R. Burks J. Kozdron M. Collins K. Patel R. Smith (4) J. Latsko ROUTE: MS, JT, TK AIRFLBX TEST REQUEST DATE Hay TO, 1934 REQUESTED BY J. Latsko ' , fiO -H;. TEST DESCRIPTION NON-ASBESTOS FRICTION MATERIAL . SCREENING FORl/C APPLIcAtIONS- STANDARD COEFFICIENT C" TEST STAND FMTTi PART NUMBER/S ..................................................... ..... ` . PARIS LIST ____ Y OR Z NUMBER Y0259-5 R?v. 1.0 PREFACE: Because of the potential health hazards,:associate with asbestos, including the possibility of additional government controls and/or regulations, and including . increasing numbers of customer requests for non-asbestos linings, it is desirable/ required to eliminate the use of asbestos jm:our friction materials. 2.0 OBJECTIVE: The objective of this test is^to qualify non-asbestos friction materials for normal VC usage. .;;4 * lS ,' .' 3.0 INSTRUCTIONS: ,.;C^ 1 .f" Using materials submitted by. the writer, including NAFCO's 11F.2S5 (baseline), .perform automatic cast 4^3# drumMpiveline deceleration tests oer the following: H'i. %h* ,.;r ** . * * Drum test temperatures: 100F (wear-in thru stabilization), 300F, 500F, 700F, and 100F. Drum'test spelsl: 3000 FPM initial velocity. Test stand inertia: 60 lb.-ft.^ Applied pressure: 75 PSI Follpwihq ithe above testing, for potentially acceptable materials (including baselmi e material)J conduct wear tests per the above conditions, including all temoeratures. Jim Latsko -- JL: jo FAW 22673 > DISTRIBUTION: R. Mack R. Burks J. Kozdron M. Collins K. Patel R. Smith (4) J. Latsko ROUTE: MS, JT, TK A I R F L E X TEST REQUEST DATE October 24, 1934 _________ REQUESTED BY J. Latsko TEST DESCRIPTION NON-ASBESTOS FRICTION .MATERIAL SCREENING FOR CR APPLICATIONS ______ ' _ TEST STAND FMTM ______________ _ PART NUMBER/S PARTS LIST ' . Y OR Z NUMBER Y0259-3' REV,- 1.0 PREFACE: Because of the potential health hazardsjassociateik with asbestos, including the possibility of additional government*coptrblsanf/dr regulations, and including increasing numbers of customer requests<for nori^sbestos linings, it is desirable/ required to eliminate the use of asbestos in our friction materials. 2.0 OBJECTIVE: , ^", :: . . The objective of this test is" to qualify non-asbestos friction materials for normal CB usage. \- - ' . 3.0 INSTRUCTIONS: ,./> \ J . Using materials submitted by the writer, perform automatic drum driveline decel eration tests peKthe following: . >.. '+!> 'll '_ Drum test temperatures: 100F (wear-in thru stabilization), VJ 200F, 300F, 400F, 100F. Drum- test: speed: 3000 FPM initial velocity. Test Stand inertia: 60 lb.-ft.^ Applied pressure: 75 PSI Following the above testing, for potentially acceptable materials (including NF125 baseline Material)., conduct wear tests per the above conditions, including all temperatuiesj ' .. . . . VUX. Jim Latsko ----------- , . JU:jo FAW 22671 .., .: C ^ C R. Bures 3. ivozcro.r; K. Collins K, Patel R. Smith (4) J. Latsko ROUTE: MS, JTf TK E X T E S T REQUEST U/.T> ... . Rf.'QUl'.ETED BY _____ Jim Latsko TEST o;-.vCR1P1I0K-_________1 tr ; J.TOS STAUtARD COEFFICIENT FRICTIOH 'K--J.hl^XI.1*UM'J$3-0i!>-A-2QB5Q0 CMiTC.T-' ^ TEST STAND____ .i-3I>P........... ....... .................. ..PART MJKBEP./S. ' __ ____________ f^ZT. _______ V t .. " >*:' A: 'r FARTS LIST___ _____________IY OR ?. NUKc-ER _____ Y0259-1 3 t_ 1,0 PREFACE: , C 1^`? 2.0 Because of the potential health hazards .a;!s,soci?ted` with asbestos, including the possibility of additional't|ove;rnnveht controls and/or regulations, it is desirable to eliminate^the\n#e of asbestos in our friction materials. 11 O^.TSC^IVEj g*y v | ,| r 3.0 3.1 The objective of this test as -`"to iejua-lify non-asbestos friction materials as suitable for normal CB "'element usage. INSTRUCTIONS; ^ \ /" r% * WEAR IN: ~ , v"" Using a .20CB500 and a new/tef ini shed drum with friction material as specified 1 y the whiter, obtain new ambient static torque, and then wear in the f rj c'Sion-uiarer ia 1 at 34.0 RPM, 150 degrees F drum bulk tec-.-, e r at u j e, 7-S ?51 eiffecti ve pressure, per the Basic Inertia Accelei aticn gtttdar.d Vro.cedure #ABCDEjKLQRTU 0062 0000 C. 3.2 Ut i I i ? i n gt ` -p roc-.dure. L-tain worn-in ambient static torque, ana . 11/ 3 !> 5 0 e g r c e F. drum bulk temperature perfc-rm^nce "best at 130, 340, 611, 357, and 1200 RPM. Also, after ea^-h^of i-rodeedinc conditions, obtain- a static torque data point 'util iz i'hbvthe "pullout" test method. Repeat the above testing, but V-i'th a 26"0 degree r drur temperature. Plot average torque versus RFM 33 : % ":NIf the above test remits warrant further evaluation, conduct 2 ve.a: '%/' test per the 3.1 procedure, except with a 250 degree F Jrui 1C ,, temperature. % np^ \ 4 FAW 16876 V^ssv-V^ /upA, UiL, <ycS'C\ T^4~ ?<Ti- ^.(M<L ^C$vjv5 *- , Xf Vao AoO'-'h &j &(_ Vj^q/ DISTRIBUTION; R. McCloskey R. Bucks J. Kozdron M. Collins K. Patel R. Smith (4) J. Latsko ROUTE: MS, JT, TK EQUEST DATE. June 13. 1985. .REQUESTED BY. Iim Latsko '1 TEST DESCRIPTION. NON-ASBESTOS FRICTION MATERIAL EVALUATION' ____________ ON A 9CSA200 BRAKE____;_____- ^LX___X ,Jh \ %.< TEST STAND. 3JL.HB. .PART NUMBER/S,, PARTS LIST. 1.0 PREFACE: _Y OR Z NUMBER. Y0259-14 "%K*& 1y Because of the potential health hazards associated with asbestos, including the possibility df^additional government controls and/or regulations, it is desirable to eliminate the use of asbestos in our friction materials. , 7' ; " V 2.0 3.0 OBJECTIVE: i> / The objective of ..this test is to qualify non--asbestos friction materials as suitable for ..CS/CT type brake usage. INSTRUCTIONS:. 7 '* ' Wear in arid' test .friction materials as supplied by the writer on a 9CSA brake./ Use the same test procedure and conditions as for Fenner 333 undeXPrp'jeet Y023 8-2, except the drum surface is to be both 125 micrgfinish a4nf$ worn smooth. . wX X./ .v-rr:?;.- '*:? ?> U" - ' . '' '' FAW 22293 W- '1 DISTRIBUTION; . J. Fisher J. Latsko Lab (3) ROUTE: MC, TK, KP, JT SHORT FORM AIRFLEX LAB INFORMATION REOUEST/REPORT NON-ASBESTOS FRICTION MATERIAL SCREENING FOR STANDARD COEFFICIENT TITLE, VC--APPLICATIONS - JAPAN FAWICK FP-500 FRICTION MATERIAL PROJECT NO. YO259-15 REQUEST DATE. March. 1986 REQUESTER. J. Latsko TEST DATES 3/6/86/ and 3/17./86 TECHNICIAN(S) APPROVED BY. RfigSJL-gffi-lfch- REPORT DATE. April. 1986 Friction gafeeriallV^ TEST STAND_ ___ Test Machine % 1.0 ,2.0 PREEACEi ,! Japan Fawick is using FP-500 non-asbestos friction .material, and they have requested an Airflex evaluation of said material.. - - Accordingly, the objective herein is to compare .^"performance/wear characteristics of this material to 'both the established characteristics of the standard (asbestos base) VC'friction material, and also to the Japan Fawick supplied FPr'500 data,J INSTRUCTIONS: ^ .hlT ' - ^ Using the Japan Fawick FP-500 friction -material, perform automatic cast iron drum driveline deceleration tests per the following: Drum test temperatures: 100 Degs F (wear-in thru stabilization), 300 Deg. F,:'- 500 Deg. F, 700 Deg. F, and 100 Deg. F. Drum test speed: 3000 FPM initiai;velocity. Test stand inertia: 60 lb. -ft.sg. Applied pressure: 75'PSI , 3.0 3.1 RESULTSt_ AIRFLEX. DATA! F /' " .. \J ' As depicted ,pn the accompanying graphs, for the one speed/pressure condition tested, fthe FP-500 and NF-285 friction materials exhibited similar dynamic %and*,btatie coefficients of friction, except that the NF-285 deyeioped'Approximately 100% coefficient on the first 100 Deg. F. cycled while* the FP-500 developed approximately 75% coefficient Underthe same" conditions; conversely, the NF-285 developed approximately-25% less coefficient than the FP-500 at the 700 Deg. F test; condition. Also, per the above test procedures, the FP-500 frictioh material provided approximately two to five times the wear life pJE the NF-285 friction material for temperatures from 100 Deg. F through 500 Deg, F, with diminished, but basically equivalent wear liveg- thereafter through 700 Deg. F. xF . FAW 10548 TET REQUEST/REPORT: Y0259-15 Page Two i;Nv- 3.2 4.0 AIRFLEX/JAPAN FAWICK FP-500 DATA CORRELATION; The Japan Fawick supplied FP-500 data was very similar to the Airflex generated FP-500 data, except that the Japan Fawick data typically indicated slightly higher coefficients and slightly greater wear lives. Test conditions were as follows: 45:5 rV1 SPEED (FPM) PRESSURE MAX. AVG. _ (PSX) ... PV (PSI X (FPM) MAX, \ AVG.. - Japan Fawick FP-500 Data 1378 Airflex FP-500 Data 3000 1378 1500 142 75 195,700 ->* \<r 225,600 195,^00 k. . 112,500 CONCLUSIONS; Per the above evaluation, the NF-285 friction material^ would be expected to develop rated coefficient more quickly than :the FP-500 friction material, therefore, requiring less ."burnish-in" time for the customer. Whereas, the FP-500 friction ^material would be expected to provide more fade resistance ."than the; ` NF-285 friction material in a high energy application. 4 ' 4a.... X ..*. Overall, per the above evaluation >- i $ K. at one representative speed/pressure condition, Japan -. -Fawick1 s - FP-500 material is an acceptable VC friction material jproyiding livery good Wear life at low to moderate energy/temperature applications? note, to fully qualify J-F FP-500 for VC applications a <more comprehensive evaluation including speed/pressure variation tesfeing would be required. Jim Latsko JL: jo if5 4: .,,y . y%J "- .. ,,4#' V \4/' . . FAW 10549