1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions 2016 08 31 A2 N Status L. Sinclair, NA 2004 10 12 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.14, 3.15 & 4 1991 02 11 Released EP00E01089481000 M. Siewert Copyright 2016, Ford Global Technologies, LLC Page 1 of 6 POLYACRYLIC (ACM) RUBBER,
2、ROTATING SHAFT WSK-M2D459-A OIL SEAL WSK-M2D459-A2 A2 NOT TO BE USED FOR NEW DESIGN 1. SCOPE The materials defined by these specifications are polyacrylic rubber compounds. 2. APPLICATION These specifications were released originally for material used for rotating shaft oil seals in manual transmiss
3、ions. 3. REQUIREMENTS 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.4 SLAB STOCK 3.4.1 Preparation of Test Specimens All tests are to be performed on specimens d
4、ie-cut from the molded test sheets manufactured from the same material and with equivalent cure to production parts. The test sheets shall have the following dimensions: 150 x 150 mm, min x 2.0 +/- 0.2 mm A A2 3.4.2 Density, g/cm3 1.45 - 1.49 1.48 - 1.52 (ISO 1183, Method A/ASTM D 297) 3.4.3 Hardnes
5、s, International 65 - 75 65 - 75 (ISO 48/ASTM D 1415) 3.4.4 Hardness, Durometer A 65 - 75 65 - 75 (ISO 868/ASTM D 2240, instantaneous, plied-up specimen. Hand held durometers shall not be used) 3.4.5 Tensile Strength, MPa, min 7 7 (ISO 37/ASTM D 412, Die C) 3.4.6 Elongation at Break, %, min 175 150
6、Test Method according to para 3.4.5) ENGINEERING MATERIAL SPECIFICATION WSK-M2D459-A/A2 Printed copies are uncontrolled Copyright 2004, Ford Global Technologies, LLC Page 2 of 6 A A2 3.4.7 Modulus at 50% Elongation, MPa 2.0 - 4.5 3.0 - 5.0 (Test Method according to para 3.4.5) 3.4.8 Tear Strength,
7、kN/m, min 20 19 (ISO 34, Method B, procedure a/ ASTM D 624, Die C) 3.4.9 Brittleness Point, C, max -21 -18 (ISO 812, Type B specimen/ ASTM D 2137, Method A) 3.4.10 Ozone Resistance, max Rating 0 Rating 0 (FLTM BP 101-01, Procedure A) 3.4.11 Compression Set, %, max 50 35 (ISO 815/ASTM D 395, Method B
8、 except 25% compression, plied-up Type 1 specimens, 22 h at 150 +/- 2 C) 3.5 HEAT AGED (ISO 188/ASTM D 573, 150 +/- 50 air changes/h, 168 h at 150 +/- 2 C) 3.5.1 Hardness Change -2 to +6 0 to +7 3.5.2 Tensile Strength Change, %, max -15 -15 3.5.3 Elongation Change, %, max -15 -15 3.5.4 Visual Evalu
9、ation No surface tackiness or cracks when folded flat against itself. 3.6 HEAT AGED (ISO 188/ASTM D 573, 150 +/- 50 air changes/h, 1000 h at 150 +/- 2 C) 3.6.1 Hardness Change 0 to +10 0 to +10 3.6.2 Tensile Strength Change, %, max -20 -20 3.6.3 Elongation Change, %, max -40 -35 3.6.4 Visual Evaluat
10、ion No surface tackiness or cracks when folded flat against itself. ENGINEERING MATERIAL SPECIFICATION WSK-M2D459-A/A2 Printed copies are uncontrolled Copyright 2004, Ford Global Technologies, LLC Page 3 of 6 3.7 IMMERSION IN OIL No.1 (ISO 1817/ASTM D 471, 168 h at 150 +/- 2 C) 3.7.1 Hardness Change
11、 -2 to +6 -4 to +4 3.7.2 Tensile Strength Change, %, max -15 -15 3.7.3 Elongation Change, %, max -20 -20 3.7.4 Volume Change, % -3 to 0 -2 to +2 3.7.5 Visual Evaluation No surface tackiness or cracks when folded flat against itself. 3.8 IMMERSION IN OIL No.3 (ISO 1817/ASTM D 471, 168 h at 150 +/- 2
12、C) 3.8.1 Hardness Change -20 to -10 -8 to -18 3.8.2 Tensile Strength Change, %, max -35 -35 3.8.3 Elongation Change, %, max -5 -10 3.8.4 Volume Change, % +11 to +19 +8 to +16 3.8.5 Visual Evaluation No surface tackiness or cracks when folded flat against itself. 3.9 IMMERSION IN APPROVED TRANSMISSIO
13、N FLUID OF AFFECTED MODEL YEAR (ISO 1817/ASTM D 471, 1000 h at 150 +/- 2 C, Hypoid Oil SAE 90) 3.9.1 Hardness Change +1 to +11 -1 to +13 3.9.2 Tensile Strength Change, %, max -20 -20 3.9.3 Elongation Change, %, max +65 -65 3.9.3 Volume Change, % +4 to +7 0 to +7 3.9.4 Visual Evaluation No surface ta
14、ckiness or cracks when folded flat against itself) 3.10 IMMERSION IN APPROVED TRANSMISSION FLUID OF AFFECTED MODEL YEAR (ISO 1817/ASTM D 471, 1000 h at 150 +/- 2 C, Gearbox SAE 80) 3.10.1 Hardness Change Not Required -1 to +13 ENGINEERING MATERIAL SPECIFICATION WSK-M2D459-A/A2 Printed copies are unc
15、ontrolled Copyright 2004, Ford Global Technologies, LLC Page 4 of 6 A A2 3.10.2 Tensile Strength Change, %, max - 20 3.10.3 Elongation Change, %, max - -65 3.10.3 Volume Change, % - 0 to +7 3.10.4 Visual Evaluation No surface tackiness or cracks when folded flat against itself, A2 only) 3.11 IMMERSI
16、ON IN APPROVED TRANSMISSION FLUID OF AFFECTED MODEL YEAR (ISO 1817/ASTM D 471, 1000 h at 150 +/- 2 C) 3.11.1 Hardness Change Not Required -1 to +13 3.11.2 Tensile Strength Change, %, max - 20 3.11.3 Elongation Change, %, max - -65 3.11.3 Volume Change, % - 0 to +7 3.11.4 Visual Evaluation No surface
17、 tackiness or cracks when folded flat against itself, A2 only) 3.12 ASH CONTENT, % 42 - 48 39 - 45 (ASTM D 297 or TGA) 3.13 FINISHED PARTS 3.13.1 Hardness 56 - 67 64 - 74 (ISO 48, micro/ASTM D 1415, micro) Test Method: Prepare and mount specimens according to FLTM BP 106-04. The hardness shall be me
18、asured between sealing lip edge and spring groove. For each aging test 3 seals are to be cut into two equal parts in an axial direction, one half part shall be aged and on the other half part the original hardness shall be measured. The average of three hardness measurements on different specimens s
19、hall be taken on each half part and be reported. The original and the changed hardness shall be measured on one and the same part. 3.13.2 Heat Aged (ISO 188/ASTM D 573, 150 +/- 50 air changes/h, 168 h at 150 +/- 2 C) Hardness Change -2 to +8 0 to +10 Visual Evaluation No surface tackiness or cracks
20、when folded flat against itself. ENGINEERING MATERIAL SPECIFICATION WSK-M2D459-A/A2 Printed copies are uncontrolled Copyright 2004, Ford Global Technologies, LLC Page 5 of 6 3.13.3 Immersion in Oil No.1 (ISO 1817/ASTM D 471, 168 h at 150 +/- 2 C) Hardness Change -4 to +7 -4 to +6 Volume Change, % -3
21、 to -1 -2 to +2 Test Method: 0.5 g minimum weight, multiple specimens allowed. Visual Evaluation No surface tackiness or cracks when folded flat against itself. 3.13.4 Immersion in Oil No.3 (ISO 1817/ASTM D 471, 168 h at 150 +/- 2 C) Hardness Change -20 to -8 -20 to -8 Volume Change, % +9 to +19 +7
22、to +13 Test Method: 0.5 g minimum weight, multiple specimens allowed. Visual Evaluation No surface tackiness or cracks when folded flat against itself. 3.13.5 IMMERSION IN APPROVED TRANSMISSION FLUID OF AFFECTED MODEL YEAR (ISO 1817/ASTM D 471, 1000 h at 150 +/- 2 C, Hypoid Oil SAE 90) Hardness Chan
23、ge 0 to +10 0 to +14 Volume Change, % +4 to +7 0 to +6 Test Method: 0.5 g minimum weight, multiple specimens allowed. Visual Evaluation No surface tackiness or cracks when folded flat against itself. 3.13.6 IMMERSION IN APPROVED TRANSMISSION FLUID OF AFFECTED MODEL YEAR (ISO 1817/ASTM D 471, 1000 h
24、at 150 +/- 2 C, Gearbox SAE 80) Hardness Change Not Required 0 to +14 Volume Change, % - 0 to +6 Test Method: 0.5 g minimum weight, multiple specimens allowed. Visual Evaluation No surface tackiness or cracks when folded flat against itself. ENGINEERING MATERIAL SPECIFICATION WSK-M2D459-A/A2 Printed
25、 copies are uncontrolled Copyright 2004, Ford Global Technologies, LLC Page 6 of 6 3.13.7 IMMERSION IN APPROVED TRANSMISSION FLUID OF AFFECTED MODEL YEAR (ISO 1817/ASTM D 471, 1000 h at 150 +/- 2 C) A A2 Hardness Change Not Required 0 to +14 Volume Change, % - 0 to +6 Test Method: 0.5 g minimum weig
26、ht, multiple specimens allowed. Visual Evaluation No surface tackiness or cracks when folded flat against itself. 3.13.8 Density, g/cm3 1.45 - 1.49 1.48 - 1.52 (ISO 1183, Method A/ASTM D 297) 3.13.9 Ash Content, % 42 - 48 39 - 45 (ASTM D 297 or TGA) 3.13.10 Tensile Permanent Set, %, max 15 15 (FLTM
27、BP 116-01, 50% elongation, 22 +/- 2 h at 100 +/- 2 C) % Set = d3-d1 / d2-d1 x 100 d1 = inside diameter, original d2 = inside diameter, elongated state d3 = inside diameter, after test 5. GENERAL INFORMATION The information below is provided for clarification and assistance in meeting the requirement
28、s of this specification. 5.1 For information on currently approved service fluids and other materials required for use in this specification contact: Materials Laboratory 15/GM-D01-D Transmission & Axle Engineering Car Engineering Materials & Fasteners Engineering Ford Motor Co. Ltd. Ford Motor Company Research & Engineering Centre PO Box 2097 Laindon, Basildon Bin 29B Essex SS15 6EE Livonia, MI 48151 England USA Materials Engineering Product Engineering Office Ford Motor Co. of Australia Ltd Princes Highway, Norlane Victoria 3214 Australia
