Document QJg48Xwr3XYe4ZqrZmNEwy1X6

HARNISCHFEGER CORPORATION MATERIAL STANDARD P&H NO. 5021 1.0 2.0 5.0 Friction Material ' Scope ' 1.1 This specification covers the physical and mechanical qualities of a friction material used on clutch shoes and brake bands for transferring frictional forces on. dry surfaces of friction drums. Physical Qualities 2.1 The construction shall consist of a rigid molded block made of asbestos with a special binder for metallic friction particles. Molded under high heat and pressure affording long life under a wide range of temperatures, possessing high friction qualitiei 2.2 The specific gravity shall be 1.7\ Mechanical Qualities . ' 3.1 The following are the maximum values: . Pressure Rubbing Speed Operating Temperature 150 P.S.I. 7500 F.P.M. 1000 F. Short Periods 3.2 When in operation the material shall conform to the following frictional test data at 50 p.s.i. Coefficient of Friction . 56- plus or minus . 07 Operating Temperature 350 F. Rubbing Speed 1200 F.P.M. Rate of Wear .0043 Cubic Inches per Horsepower Hour 4.0 Procurement 4.1 This material is available in the following ranges: Thickness Range 1/4" to 4". . Width Range Length Range 1" to 24" 120 circle (Limited to 24" on chord length) maximum area 600 sq. in. OR 12.-61 Sheet 1 of 2 I SCF-P&H-0885 ME 0747 P&H NO. 5021 5.0 tolerance 5.1 Thickness Width Up to 8" wide Up to 8" wide plus ,000" minus .020" plus or minus l/52" 8" to 12"' wide 8" and over plus .000" minus .052" plus or minus l/l6" Radius Machined block . plus l/l6" minus .000" Plain Moulded plus or minus 1/8"' Over 12" O.D. ground plus .125" minus .000" Length plus or minus l/l6" 6.0 7.0 ' Marking ` 6.1 The name and brand of the manufacturer shall legibly appear on each piece in such a way as to be readily identified. Inspection 7*1 Material furnished to this specification shall be subject to incoming inspection at any of the Harnischfeger Corporation plants, who reserve, the right to reject all material which does not comply with this specification. t i ii Note: Purchasing Department - This specification applies to material 1257 manufactured by the Johns-Manville Company. Original: 12-50-61 Sheet 2 of 2 ME 0748 Harnischfeger P&H mflwouXo, Wisconsin. 53204 FRICTION MATERIAL MATERIAL SPECIFICATION P&H NO. 3021 ISSUE NO. 3,9--74 MOLDED BLOCK WITH METALLIC FRICTION PARTICLES ^ ' S ^ Q ^ ^ 1.0 SCOPE 1.1 This specification covers the physical and mechanical properties of a friction material used on clutch shoes and brake bands for transferring frictional forces on dry contact with friction drums. 1.2 Common product applications include clutch shoes, brake bands, and holding brakes. 2.0 PHYSICAL PROPERTIES Xl The construction shall consist of a rigid molded block of asbestos combined with a special binder containing metallic friction particles. The material shall be molded under high heat and pressure to provide a long life under a wide range of temperature along with high frictional qualities. 2.2 Other physical properties shall be as specified under Paragraph 7.0. 3.0 MECHANICAL PROPERTIES 3.1 This molded block must maintain maximum coefficient of friction under static conditions and be suitable for holding brake applications. 3.2 The mechanical properties shall be as specified under Paragraph 7.0 for each product furnished under this specification. 3.3 These properties are not a complete description of the product required and are stated only as reference material for descriptive purposes. Conformance shall not constitute the sole basis of acceptance. The material must be judged further on its ability to perform satisfactorily in the field on P&H equipment. 4.0 MANUFACTURING PRACTICES 4.1 The products furnished shall be produced to Harnischfeger Corporation detailed drawings. Identification or marking shall be as indicated on the detailed drawings or in accordance with the section relating to part identification in the Harnischfeger Quality Control Standard. 4.2 All tolerances as they apply shall be specified under Paragraph 7.0 for each vendor. 4.3 It is expected that the manufacturer will exercise inspection procedures to assure that the material is controlled within acceptable limits of quality control. 5.0 IDENTIFICATION 5.1 In addition to the Harnischfeger Corporation part number, the name and brand of the manufacturer shall legibly appear on each piece in such a way as to be readily identified. 5.2 Each package, container, bundle or lift shall be tagged or marked with the following information: 5.2.1 Harnischfeger Name or P&H Trademark and Purchase Order Number , 5.2.2 Supplier's Name 5.2.3 Grade or Specification 5.2.4 Harnischfeger Part Number 6.0 INSPECTION AT PURCHASER'S WORKS 6.1 Acceptance of material furnished under this specification shall be subject to confirmation by Harnischfeger Materials Engineering and Quality Control Departments. ' 6.2 The purchaser shaU have the option of accepting or rejecting material that fails to meet any of the requirements of this specification. 6.3 In the event of rejection, the supplier will be granted a hearing at his request. ' 7.0 APPROVED SOURCES. MECHANICAL AND PHYSICAL PROPERTIES. SIZE RANGE AND TOLERANCES 7.1 National Friction Products Corporation - Material Number NF-160 7.1.1 Mechanical and Physical Properties Kinetic Coefficient of Friction .50 Maximum Recommended Pressure 4,000 P.SJ. Maximum Recommended Rubbing Speed 7,500 F.P.M. Maximum Constant Operating Temperature 480*F Wear Rate (Cu. In./Hp. Hr.) .006 Specific Gravity 1.78 .05 Tensile Strength 3,000 Lbs. 7.1.2 Size Range . National Friction Products will quote sizes on specific parts. 7.1.3 Standard Tolerances National Friction Products will set tolerances on specific parts. iBBTHamiscMeger mHwcnAee, Wisconsin. 53201 MATERIAL SPECIFICATION P&H NO. 3021 7J2 Gatke Corporation - Material Number 3508 7.2.1 Mechanical and Physical Properties Kinetic Coefficient of Friction @ 75 psi, 1575 FJP.M. Static Coefficient of Friction Wear Rate (Cu. In./Rp. Hr.) Maximum Recommended Pressure ' Maximum Recommended Rubbing Speed Energy Absorption(HP/sq.ln.) Compressive Strength Flexural Strength Impact Strength (IZOD) Hardness (Rockwell M) Density (Oz./Cu. In.) 7.2.2 Cize Range Thickness: 3/16" to 4" Width: 1" to 24" Length: 20" Max. 7.2.3 Standard Tolerances Thickness: .010" Width: 1/64" Length: 1/16" 7.3 HJC. Porter Company - Material Number D-650 7.3.1 Mechanical and Physical Properties Kinetic Coefficient of Friction @ 350*F, 100 PJSJ. Static Coefficient of Friction Wear @ 100 to 600*F, 100 P.SJ. 7.3.2 Size Range Thickness: 1/8" to 3/4" Diameter: 24" Max. 7.3.3 Standard Tolerances Thickness: .010" Diameter: .030" 7.4 HJC. Porter Company - Material Number D-813 7.4.1 Mechanical and Physical Properties Kinetic Coefficient of Friction @ 350*F, 100P.SJ. Static Coefficient of Friction Wear @ 100 to 600*F 7.4.2 Size Range Thickness: .50 In. Max. Smallest Drum Diameter for .50" Thick is 16" 7.4.3 Standard Tolerances Thickness: .010" Width: .030" Length: .125 7.5 Abex Corporation, American Brakeblok Div. - Material Number 41-16 7.5.1 Mechanical and Physical Properties Kinetic Coefficient of Friction @ 1300 F.P.M., 75P.SJ., 350*F Wear Rate @ 500"F (Cu. In/Hp. Hr.) 7.5.2 Size Range Abex Corporation will quote sizes on specific parts. 7.5.3 Standard Tolerances Thickness: +.000" -.010" Width: +.030" -.000" Length: l/32" .56 .05 Dry .60 .05 Dry .0Q5 150 PJSJ. 5.000 FJP.M. 2.50 12.000 PHJ. 9,500 P.S.I. 1.20 P^J. 84 1.23 .51 .32 to .36 .00127 In. .44 .31 to .36 .0011 In. .46 .006 Page 2 of 3 ) ME 0745 Harnischfeger P&H mBwaukee, wticonstn. $3201 MATERIAL SPECIFICATION PAH NO. 3021 7.6 Abex Corporation, American Brakeblok Div. - Material Number 150-102B 7.6.1 Mechanical and Physical Properties ' Kinetic Coefficient pf Friction @ 1300 F.P.M., 75 P.S.I., 350*F Wear Bate @ 500"F (Cu. In./Hp. Hr.) 7.6.2 Size Range Abex Corporation will quote sizes on specific parts. 7.6.3 Standard Tolerances Thickness: +.000" -.010" Width: +.030" - .000" Length: 1/32" 7.7 Raybestos Manhattan - Material Number MA-428 7.7.1 Mechanical and Physical Properties Kinetic Coefficient of Friction @ 350"F Wear (SAE Test) 7.7.2 Size Range Raybestos-Manhattan will quote sizes on specific parts. 7.7.3 Standard Tolerances Raybestos-Manhattan will set tolerances on specific parts. .52 .040 .43 .019" Page 3 of 3 t ME 0746