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Oiles 300 Oil-impregnated expanded cast iron bearings Feature Reduces much less lubrication than copper alloy bearings. Maintains oil film well and features superior wear resistance and seizure resistance. Places no restrictions on sliding surface shapes or motion forms. Available in larger dimensions than oil-impregnated sintered bearings. Standard products and materials for machining are available in various sizes. Relief angle Rake angle Nose radiusi mmj Speed im/minj Cut depth immj Feed imm/revj carbide tooil JISj 5`10K 2`5K 0.40`0.80 100`200 0.05`0.30 0.08`0.30 Lathe turning Condition Cutting tool I.D. class 7 to 8 O.D. class 6 to 7 Length class 8 to 9 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. The values shown above are typical values, not the standard values. Service range Lubrication condition Service temperature range Allowable max. pressure P N/mmo2 kgf/cm2p Allowable max. velocity V m/som/minp Allowable max. PV value N/mm2Em/sokgf/cm2Em/minp periodic lubrication |40`{100 1.00o60p 1.25o765p 10o102p oil lubrication |40`{150 3.35o201p 3.25o1,990p Apply grease or oil impregnation after machining. Density Tensile strength Compressive strength Impact strength Hardness Modulus of longitudinal elasticity Co-efficient of linear expansion Thermal conductivity . JIS Z 2241 . JIS Z 2242 JIS Z 2246 JIS Z 2241 . . 6.8 98o10p 294o30p 2o0.2p HS20 58,000o6,000p 1.1 50.2o0.12p Mechanical properties g/cm3 N/mmo2 kgf/mm2p N/mmo2 kgf/mm2p J/cmo2 kgfm/cm2p . N/mmo2 kgf/mm2p ~10|5 |1 W/mocal/seccmp 255Selection Guide Product Air Bearings Metallic Bearing Multi-layer Bearing Plastic Bearing Information Technical Corporate Profi le Information Slide Shifter