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48M Oiles 480 Bar Stock 480-02 Test data Diameter Length D Tolerance L 21.5 31.5 41.5 52 500 500 500 500 }0.4 }0.4 }0.5 }0.5 Parts No. 48M-20 48M-30 48M-40 L 48M-50 D Specify Part No. by required diameter. (e.g.) Diameter is 31.5mm. 48M - 30 W W W Standard bar stock is 480-01. N/mm2 okgf/cm2p 0.20 0.10 0 4.9 o50p 0 9.8 o100p 14.7 o150p 19.6 o200p 24.5 o250p Coefficient of frictionkʁl Pressurek @ l Thrust rotation test Testing conditions Mating material F S45Cisurface roughness 3mRyj PressureF 2.45 to 24.5N/mmo2 25.0 to 250.0kgf/cm2p @@@@@i1.23N/mmo2 12.5kgf/cm2p @@@ is added every 5 minutes.j Velocity F 0.208m/s o12.5m/minp Atmosphere F atmospheric air, @@@@@@ In wateir 20 to 47j In wateir 20 to 47j In atmospheric air Durability cyclek ~103cyclel 0.25 0.20 0.15 0.10 0.05 0 0 20 40 60 80 100 Coefficient of frictionkʁl Wear amount of Oiles 480-02 F 0.073mm Wear amount of polyacetal F 1.284mm Journal oscillation test Testing conditions Bearing dimension F 30~38~R45 Mating material F SUP7isurface roughness 18.7 to 23.2mRtj PressureF 2.90N/mmo2 30.0kgf/cm2p Velocity F 0.0183m/s o1.1m/minp Oscillating cycle F 70cpm Oscillating angle F }15 Durability cycle F 100,000cycle Lubrication F grease is applied at assembly Journal rotation test Testing conditions Bearing dimension F 40~50~R30 Mating material F S45Cisurface roughness 3mRyj PressureF 1.96 to 19.6N/mmo2 20.0 to 200.0kgf/cm2p @@@@@i0.98N/mmo2 10.0kgf/cm2pA @@@@@is added every 10 minutes.j Velocity F 0.0167m/s o1.0m/minp 0.0500m/s o3.0m/minp 0.0833m/s o5.0m/minp Lubrication F dry 0.20 0.10 0 Coefficient of frictionkʁl 0 4.9 o50p 9.8 o100p 14.7 o150p 19.6 o200p Pressurek N /@m m 2 l okgf/cm2p Parts No. 90 Selection Guide Product Information Plastic Bearing Multi-layer Bearing Metallic Bearing Air Bearings Technical Slide Shifter Information Corporate Profi le