Self-Lube Hand book - NSK Europe - #151

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SELF-LUBE® BEARINGS 151 Conversion factors from SI units (continued) Multiples Prefix Symbols Multiples Prefix Symbols 1018 Exa E 10-1 Deci d 1015 Peta P 10-2 Centi c 1012 Tera T 10-3 Milli m 109 Giga G 10-6 Micro ì 106 Mega M 10-9 Nano n 103 Kilo k 10-12 Pico p 102 Hecto h 10-15 Femto f 101 Deca da 10-18 Ato a Prefixes used in SI system SI Unit Unit other than SI Conversion factor Parameter Names of unit Symbol Name of unit Symbol from SI unit Energy Joule (Newton · metre) J (N · m) Erg erg 107 Calorie (International) calIT 4.186 8 Kilogram-force metre kgf · m 1/9.806 65 Kilowatt hour kW · h 1/(3.6 • 106) French horse power hour PS · h 3.776 72 • 10-7 Power Watt (Joule per second) W (J/s) Kilogram-force metre per second kgf · m/s 1/9.806 65 Kilocalorie per hour kcal/h 1/1.163 Metric horse power PS 1/735.498 8 Dynamic Viscosity Pascal second Pa · s Poise P 10 Kinematic Viscosity Square metre per second m2/s Stokes St 104 Centistokes cSt 106 Temperature Kelvin, Degree celsius K, °C Degree °C (See note (1)) Electric Current Ampere A Ampere A 1 Magnetomotive Force Voltage, Electromotive Force Volt V (Watts per ampere) (W/A) 1 Magnetic Field Strength Ampere per metre A/m Oersted Oe 4ð/103 Magnetic Flux Density Tesla T Gauss Gs 104 Gamma ã 109 Electrical Resistance Ohm Ù (Volts per ampere) (V/A) 1 Note (1) The conversion from T(K) into .(°C) is . = T - 273.15 but for a temperature difference, it is ÄT = Ä.. However, ÄT and Ä. represent temperature differences measured using the Kelvin and Celsius scales respectively. Remarks The names and symbols in ( ) are equivalent to those directly above them or on their left. Example of conversion 1N=1/9.806 65kgf