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Oiles Aramid M/F1 Aromatic polyamide bearings Feature of Aramid M Has superior heat resistance and maintains mechanical characteristics even in continuous operations at high temperatures. Easily machinable. Has superior mechanical characteristics and electric insulation. Has superior performances such as radiant ray resistance, hydrolysis resistance, fire resistance, no gas production in vacuum, etc. The standard products in various ball shapes and materials for machining are available. The values shown above are typical values, not the standard values. iNote 1j Weight variation rate when dipped in water for 24 hours iNote 2j Saturated dimension variation rate in water (at the room temperature). It is 4% when the water temperature is 50C (122F) or more. Dimensional variation due to water absorption should be taken into consideration when designing. JIS K 6911 JIS K 7209 . Dry furnace JIS C 6481 . . . JIS K 7161-1, -2 ASTM D 790 Aramid M Mechanical properties Compressive strength Modulus of compressive elasticity Hardness Izod impact strength Surface resistivity Volume resistivity Insulation breakdown Dielectric constant Dielectric tangent UL incombustibility JIS K 6911 JIS K 6911 JIS K 7202 ASTM D 256 JIS K 6911 JIS K 6911 JIS K 6911 T/P thickness 1mm JIS K 6911 JIS K 6911 UL94 1.3 0.48iNote 1j 2iNote 2j 270, 30 seconds, OK 300, 30 seconds, OK 3.6 12.1~10|3 o3.47~10|4p 2 98o1,000p 147o1,500p 235o2,400p 3,923o4~104p HRM123 without notch 255o26p with notch 27.5o2.8p 8.9~1015 3~101o3 3~1015p 25 4.5 0.019 V-0 . wt . . ~10|5 |1 W/im/kj oCal/secEcmp N/mmo2 kgf/cm2p N/mmo2 kgf/cm2p N/mmo2 kgf/cm2p N/mmo2 kgf/cm2p . J/mokgfcm/cmp moEcmp kV/mm . . File No.E78113 I.D. class 8 to 9 O.D. class 7 to 8 Length class 9 to 10 Machining accuracy (bushing) Classes here are in JIS standard. This product demonstrates satisfactory performance at the slide surface roughness of 6.3 to 12.5 mRy. Dimensions may change due to thermal expansion, chucking pressure, moisture absorption deformation, etc. High accuracy is ensured if the product is installed on the housing and then ground. Attention should be paid to dimensional variances due to thermal expansion, chucking, and bend of the material. Edges are subject to chipping when machining. Chamfer the edges in advance, apply patch plates, or take other proper measures. Contact us for grinding and milling information. Relief angle Rake angle Nose radius immj carbide toolEdiamondiJISj 5`10K 5`10K 0.40`0.80 Lathe turning Cutting tool 60`150 0.05`0.10 0.05`0.20 Condition Speed Cut depth Feed im/minj immj imm/revj Specific gravity Water absorption rate Heat resistance Solder dip resistance Co-efficient of linear expansion Thermal conductivity Tensile elongation Tensile strength Flexural property 200 for 20 days No Weight and dimensional changes. No bending. 115Selection Guide Product Air Bearings Metallic Bearing Multi-layer Bearing Plastic Bearing Information Technical Corporate Profi le Information Slide Shifter