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Needle Roller Bearings - Ntn-snr.com

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Appendix<br />

NTN<br />

Unit system Quantity Length L Mass M Time T Acceleration Force Stress<br />

Contrast table of SI and CGS system units, gravitation system units<br />

SI<br />

CGS system<br />

Gravitation system<br />

m<br />

cm<br />

m<br />

kg<br />

g<br />

kgfs 2 /m<br />

s<br />

s<br />

s<br />

m/s 2<br />

Gal<br />

m/s 2<br />

N<br />

dyn<br />

kgf<br />

Pa<br />

dyn/cm 2<br />

kgf/m 2<br />

Quantity<br />

<br />

Angle<br />

<br />

<br />

Length<br />

<br />

<br />

Area<br />

<br />

Volume<br />

<br />

<br />

Mass<br />

<br />

<br />

Time<br />

<br />

<br />

Speed<br />

<br />

Unit designation<br />

Degree<br />

Minute<br />

Second<br />

Meter<br />

Micron<br />

Angstrom<br />

Square meter<br />

Are<br />

Hector <br />

Cubic meter <br />

Liter<br />

kilogram<br />

Ton<br />

Weight kilogram.square second per meter<br />

Second<br />

Minute<br />

Hour<br />

Day<br />

Meter per second<br />

Knot<br />

Frequency and vibration Cycle<br />

Revolutions (rotational speed) Revolutions per minute per second<br />

Angular speed Radian per second<br />

Meter per second per second<br />

Acceleration<br />

G<br />

Weight kilogram<br />

Force Weight ton<br />

Dyne<br />

Force moment Weight kilogram meter<br />

Inertia moment Weight kilogram per square meter<br />

Stress Weight kilogram per square meter<br />

Weight kilogram per square meter<br />

Water column meter<br />

Pressure Mercury column meter<br />

Torr<br />

Atmospheric pressure<br />

Bar<br />

Erg<br />

IT calorie<br />

Energy Weight kilogram meter<br />

<br />

Kilowatt per hour<br />

Horse power per hour<br />

Watt<br />

Power rate and power Horse power<br />

Weight kilogram meter per second<br />

Pressure<br />

Pa<br />

dyn/cm 2<br />

kgf/m 2<br />

Conversion to SI unit<br />

Symbol Conversion rate to SI SI unit designation<br />

<br />

<br />

sec<br />

m<br />

<br />

Å<br />

m 2<br />

a<br />

ha<br />

/180 <br />

/10 800<br />

/648 000<br />

1<br />

10 6<br />

10 10<br />

1<br />

10 2<br />

10 4<br />

<br />

Radian<br />

<br />

<br />

Meter<br />

<br />

<br />

Square meter<br />

<br />

m 3 1<br />

Cubic meter <br />

R.L 10 3<br />

kg 1<br />

<br />

t<br />

kgfs 2 /m<br />

s<br />

10 3<br />

9.806 65<br />

1<br />

Kilogram<br />

<br />

<br />

min 60<br />

Second<br />

h 3 600 <br />

d 86 400 <br />

m/s 1<br />

Meter per second<br />

kn 1 852/3 600 <br />

s 1 pps<br />

rpmr/min<br />

rad/s<br />

1<br />

1/60<br />

1<br />

Hertz<br />

Per second<br />

Radian per second<br />

m/s 2 1<br />

Meter per second per second<br />

G 9.806 65<br />

<br />

kgf 9.806 65<br />

<br />

tf 9 806.65 Newton<br />

dyn<br />

kgfm<br />

kgfms 2<br />

kgf/m 2<br />

kgf/m 2<br />

mH2O<br />

10 5<br />

9.806 65<br />

9.806 65<br />

9.806 65<br />

9.806 65<br />

9 806.65<br />

<br />

Newton meter<br />

kilogram square meter<br />

Pascal or Newton per square meter<br />

<br />

<br />

mHg 101 325/0.76<br />

Pascal<br />

Torr 101 325/760 <br />

atm<br />

bar<br />

erg<br />

calIT<br />

101 325<br />

10 5<br />

10 7<br />

4.186 8<br />

<br />

<br />

<br />

<br />

kgfm 9.806 65 Joule<br />

<br />

kWh 3.60010 6<br />

PSh<br />

W<br />

PS<br />

kgfm/s<br />

2.647 7910 6<br />

1<br />

735.5<br />

9.806 65<br />

<br />

<br />

Watt<br />

Energy<br />

J<br />

erg<br />

kgfm<br />

<br />

Symbol<br />

rad<br />

m<br />

m 2<br />

m 3<br />

kg<br />

s<br />

m/s<br />

Hz<br />

s 1<br />

rad/s<br />

m/s 2<br />

N<br />

Nm<br />

kgm 2<br />

Pa or N/m 2<br />

Pa<br />

J<br />

W<br />

C-6

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