5 materials for bearing applications 5-1 various grades and their characteristics table 17 materials for machining ram extrusion and compression molding grade base resin characteristics applications sliding bearings valve seats piston rings bearee fl 3000 ptfe less deformation under compression load superior wear resists friction bearee fl 3020 ptfe low friction under high pressure superior weather resistance bearing pads bearee fl 3030 ptfe does not abrade soft mating material stable coefficient of friction sliding bearings seal rings piston rings friction plate sliding bearings piston cup seals bearee fl 3040 ptfe does not abrade soft mating material bearee fl 3050 ptfe does not abrade soft mating material superior wear resistance under high temperature sliding bearings bearee fl 3060 ptfe superior creep resistance exclusively for ml bearings bearee fl 3070 ptfe superior sliding characteristics and creep resistance compressor seals bearee fl 3305 ptfe low coefficient of friction unde
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materials for bearing applications specific gravity compressive creep 8.1 hardness 1 tensile strength elongation flexural strength mpa kgf/cm2 flexural modulus mpa kgf/cm2 200 mpa kgf/cm2 coef of 2 water max thermal absorption expansion service temp 10-5 0.03 8.3 260 2.28 66 15 150 2.23 7.0 64 22 220 250 0.03 260 1.98 5.0 62 12 120 170 0.09 9.0 260 2.19 6.0 63 14 140 170 0.02 8.5 260 1.94 6.0 63 11 110 160 0.01 8.7 260 3.80 3.2 70 10 100 100 0.09 6.8 260 2.09 68 18 180 230 6.3 260 3.39 4.0 70 11 110 90 6.8 260 2.25 10.6 65 13 130 140 0.02 9.1 260 2.10 3.0 70 16 160 130 0.07 7.2 260 2.07 1.4 70 14 140 30 8.7 260 0.94 11.0 65 20 200 200 20 200 610 6 100 0.01 20.0 80 0.94 10.0 65 40 400 200 0.01 17.0 80 4.25 46 460 15 1.9 260 1.78 hs70,80,90 10 100 290 0.05 10.0 230 2.10 hs70,80,90 12 120 290 0.05 10.0 230 note 1 hardness no code durometer hs rubber hardness others rockwell hardness 2 coefficient of linear expansion the mean coefficient of linear expansion in the range from room tem
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materials for bearing applications table 18 injection molding materials grade base resin characteristics applications bearee pi 5001 pi excellent wear resistance sliding bearings washers piston rings sliding bearings thrust bearings bearee pi 5010 pi non-abrasive to soft mating materials bearee pi 5022 pi precision moldable picker fingers electrical and electronic parts bearee pi 5030 pi high mechanical strength gears retainers bearing cages bearee pi 5040 pi high rigidity and electrical conductivity gears heat insulating sleeves bearee ai 5003 pai excellent impact resistance high mechanical strength excellent friction and wear properties high mechanical strength small drop in heat resistance due to water absorption excellent impact resistance excellent resistance against abrasive wear heat insulation electrical and electronic parts picker fingers sliding bearings washers bearee ai 5017 pai bearee uh5000 pe sliding bearings bearee uh5041 pe excellent sliding properties at low pressure
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materials for bearing applications specific gravity compressive creep hardness 1 tensile strength elongation flexural strength mpa kgf/cm2 flexural modulus mpa kgf/cm2 1.3 mpa kgf/cm2 2 water coef of max thermal service temp absorption expansion 10-5 1.49 m94 67 670 108 1 080 8 500 85 000 0.10 2.2 240 300 1.46 0.2 m70 76 760 7 116 1 160 3 700 37 000 0.25 4.5 240 300 1.80 m107 138 1 380 1 190 1 900 14 100 141 000 0.3 3.4 240 300 1.58 0.2 m99 160 1 600 3 250 2 500 11 000 110 000 0.22 1.5 240 300 1.43 0.2 m99 130 1 300 2 360 3 600 21 000 210 000 0.25 0.4 240 300 1.40 0.2 e91 190 1 900 12 220 2 200 4 700 47 000 0.28 4.0 250 1.51 0.2 m105 82 820 170 1 700 8 800 88 000 0.18 4.1 250 0.94 11.0 r60 41 410 10 41 410 1 600 16 000 0.01 17.0 80 0.95 48 480 8.8 33 330 970 9 700 0.06 12.4 80 1.53 0.3 80 51 510 3 61 610 0.05 8.1 230 1.55 0.3 81 51 510 3 61 610 0.03 7.0 230 1.69 103 1 050 164 1 670 11 760 120 000 0.01 230 1.60 r95 67 670 4 86 860 3 700 37 000 10.8 230 1.56 r91 51 510 5 80 800 3 600
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materials for bearing applications table 18 grade base resin characteristics applications bearee as5700 pps superior wear resistance in water superior chemical resistance bearings in water bearings in chemicals bearee as5910 pps high modulus lens holders bearee lc5020 arpes high mechanical strength high heat resistance picker fingers mold well because of material s fluidity picker fingers bearee pk5030 4 peek excellent wear resistance washers bearee pk5900 peek excellent wear resistance superior shock resistance sliding bearings bearings in oil bearee pk5300 peek excellent wear friction chemical and heat resistance superior sealing seal rings bearee ny5000 pa excellent friction and wear characteristic at low pv value sliding bearings door wheels bearee dm5030 pom excellent wear resistance ensuring stable low friction coefficient for a long period of time suitable for aluminum or copper mating material sliding bearings gears rollers table 19 coating materials grade characteristics appli
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materials for bearing applications specific gravity compressive creep hardness 1 tensile strength elongation flexural strength mpa kgf/cm2 flexural modulus mpa kgf/cm2 2 mpa kgf/cm2 2 water coef of max thermal service temp absorption expansion 10-5 1.70 r120 60 600 110 1 100 10 000 100 000 0.03 2.3 230 1.93 r121 41 410 1 110 1 100 35 000 350 000 0.03 1.4 230 1.82 173 1 730 3 198 1 980 23 700 237 000 300 1.30 130 1 300 100 0.13 5.0 250 1.39 r118 126 1 260 2 207 2 070 7 400 74 000 4.4 250 1.63 m79 82 820 1 130 1 300 9 900 99 000 3.0 250 1.40 0.6 68 20 200 20 100 1.42 50 500 35 80 800 2 650 26 500 100 note 1 hardness no code durometer others rockwell hardness 2 coefficient of linear expansion the mean coefficient of linear expansion in the range from room temperature up to 150°c values in the above table are representative test results layer thickness m bond strength cross-cut test 100/100 pencil hardness test causing scratches causing tear baking continuous pin temperature scratchin
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materials for bearing applications table 20 testing methods for each property unit specific gravity compressive creep hardness tensile strength elongation flexural strength flexural modulus compressive strength water absorption coef of thermal expansion cross-cut pencil hardness pin scratching 10-5/°c score 0 10 mpa mpa mpa kgf/cm2 kgf/cm2 kgf/cm 2 testing methods fluoroplastic based material general plastics astm d792 astm d621 astm d785 astm d638 astm d638 astm d790 astm d790 rubber jis k6350 jis k6301 jis k6301 jis k6301 jis k6301 coating fl3020 jis k6888 astm d792 astm d621 astm d2240 mpa kgf/cm 2 jis k7215 jis k6888 jis k6888 astm d638 astm d638 astm d695 astm d570 tma method astm d695 astm d570 tma method jis k6301 jis k6301 tma method jis k5400 jis k6894 jis k6894 jis k7208 jis k7209 pencil hardness score 0 5 the material property values shown in the catalog are only representative test results obtained from the tests under specific test conditions this data may not be directly
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materials for bearing applications 5-2 chemical compatibility of each grade ntn engineering plastics materials are inert against almost all chemicals chemical resistance of the base resins of bearee materials are shown in table 21 the following table shows the characteristics of base resin on each grade therefore they may differ according to the contained filler contact us for selection table 21 chemical properties of ntn engineering plastics materials chemicals concentrated sulfuric acid 15 acetic acid 75 acetic acid hydrochloric acid acids 15 nitric acid 70 nitric acid formic acid 85 phospheric acid 40 chromic acid 100 lactic acid hydrogen peroxide 30 ammonia aqueous solution iron chloride alkali calcium chloride sulfate calcium hydroxide mineral water methyl alcohol solvents acetone benzene carbon tetrachloride ethyl-ether ethylene glycol oils kerosene diesel engine oil lubricating oil animal oil vegetable oil kerosene naphtha nitrate hydro-carbon fuel fluorine gas others molten met
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