Page 334 - needle bearings

Appendix
NTN

Contrast table of SI and CGS system units, gravitation system units
Unit system Quantity Length L Mass M Time T Acceleration Force Stress Pressure Energy
SI m kg s m/s 2 N Pa Pa J
CGS system cm g s Gal dyn dyn/cm 2 dyn/cm 2 erg
2
Gravitation system m kgfɾs /m s m/s 2 kgf kgf/m 2 kgf/m 2 kgfɾm

Conversion to SI unit
Quantity Unit designation Symbol Conversion rate to SI SI unit designation Symbol
Degree ˃ К/180
Angle Minute ˄ К/10 800 Radian rad
Second ˅ʢsecʣ К/648 000
Meter m 1
Length Micron Ж 10 ʵ6 Meter m
Angstrom Å 10 ʵ10
Square meter m 2 1
Area Are a 10 2 Square meter m 2
Hector ha 10 4
Cubic meter m 3 1
Volume Cubic meter m 3
Liter R.L 10 ʵ3

kilogram kg 1
Mass Ton t 10 3 Kilogram kg
Weight kilogram.square second per meter kgfɾs /m 9.806 65
2
Second s 1
Minute min 60
Time Second s
Hour h 3 600
Day d 86 400
Meter per second m/s 1
Speed Meter per second m/s
Knot kn 1 852/3 600
Frequency and vibration Cycle s ʢppsʣ 1 Hertz Hz
ʵ1
Revolutions (rotational speed) Revolutions per minute per second rpmʢr/minʣ 1/60 Per second s ʵ1
Angular speed Radian per second rad/s 1 Radian per second rad/s
Meter per second per second m/s 2 1
Acceleration Meter per second per second m/s 2
G G 9.806 65

Weight kilogram kgf 9.806 65

Force Weight ton tf 9 806.65 Newton N
Dyne dyn 10 ʵ5
Force moment Weight kilogram meter kgfɾm 9.806 65 Newton meter Nɾm
Inertia moment Weight kilogram per square meter kgfɾmɾs 2 9.806 65 kilogram square meter kgɾm 2
Stress Weight kilogram per square meter kgf/m 2 9.806 65 Pascal or Newton per square meter Pa or N/m 2
Weight kilogram per square meter kgf/m 2 9.806 65
Water column meter mH2O 9 806.65
Mercury column meter mHg 101 325/0.76
Pressure Pascal Pa
Torr Torr 101 325/760
Atmospheric pressure atm 101 325
Bar bar 10 5
Erg erg 10 ʵ7
IT calorie calIT 4.186 8
Energy Weight kilogram meter kgfɾm 9.806 65 Joule J

Kilowatt per hour kWɾh 3.600ʷ10 6
Horse power per hour PSɾh 2.647 79ʷ10 6
Watt W 1
Power rate and power Horse power PS 735.5 Watt W
Weight kilogram meter per second kgfɾm/s 9.806 65

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