Document qdox7ay40YabwjnY9263XL8ER

nJ Eaton Corporation Inter-Office Correspondence Received DEC 151982 brake Vision PRODUCT ENGINEERING f Data To Division & Plant From Division & Plant Copy to Subfact December 14, 1982 K. W. Swift Brake Oivision-Galesburg J. A. Urban Brake Division-Galesburg R. L-. Cook, M. H. Lawrence, R. C. VanWormerX v si? NONASBESTOS LINING; TRUCKAND BUS BUILDERN05LETTERXJ WlT9 . I will address the first and last items listed 3nsB;' Wf^^a's memo of December 1, 1982. The other items ameCrd1 h idence of the Marketing and Purchasing Departments Fade Resistance, Wear, Friction Charaotdri*3a.cs 4- Ebn has tested nonasbestos linings since January, 198dV^* Carlisle NAB-5M and Abex 931-162 nonasbestos linings have b^h0pproveq^nd are available on Eaton Single Anchor Pin 5-Cam garages. JJlthough their performance is similar and thev^toph haveyremonstrated longer lining and drum life, they are^bgr^ed otjmwrerent fiber technologies. NAB-9M is basedjon p^cffidJssed mineral fibers reinforced by DuPont Kevlafflt. Tibex 93|*-l62 is based an glass fibers. The structure oracith materials is bonded by thermoset resins and the performance isftaOired by many other ingredients. . Both materials exhiBQp^s medici%nign friction performance of .40 to .45 coefficien^oft fri^t^ici. In comparison organ^afebestos materials of the same friction reting, the arjorl&sbesltos iriaterials have slightly better fade resistanEeOy?he tj^advsntages Df these two nonasbestos materials are 25% *tjK50% iSraoer lining life and a 50% to 100% increase in drum>l!&e? Deceased lining wear and drum wear extends the reline perkicKand EjrunQceplacement interval to provide up to a 50% dejjjrgEfee i^jorake maintenance cost. Neqative^j- Some nanasbestos materials have lower flexure strength and iiriRgct strength than typical asbestos materials which results in (jfore damage during shipping, handling, and assembly. Although tjt&sHls not a problem to vehicle operation, it does contribute to ,. Mv j. A. Urban JAU/bac (1222w) For inler-oflice and inter-plant correspondence only Form 30*23 (Rov 4-71J EXHIBIT SCF-EC-2175 EAB (133973