Hitachi Zaxis 110 Zaxis 125US, Workshop Manual

Page: 5 / 41

INTRODUCTION
IN-03
UNITS USED
•
SI Units (International System of Units) are used in
this manual.
MKSA system units and English units are also
indicated in parenthheses just behind SI units.
Example : 24.5 MPa (250 kgf/cm
2
, 3560 psi)
A table for conversion from SI units to other system
units is shown below for reference purposees.
Quantity
To Convert
From
Into Multiply By
MPa kgf/cm
2
10.197 Pressure
MPa psi 145.0
kW PS 1.360 Power
kW HP 1.341
Temperature
°
C
°
F
°
C
×
1.8+32
km/h mph 0.6214 Velocity
min
-1
rpm 1.0
Flow rate L/min US gpm 0.2642
mL/rev cc/rev 1.0
Quantity
To Convert
From
Into Multiply By
mm in 0.03937 Length
mm ft 0.003281
L US gal 0.2642
L US qt 1.057
Volume
m
3
yd
3
1.308
Weight kg lb 2.205
N kgf 0.10197 Force
N lbf 0.2248
N
⋅
m kgf
⋅
m 1.0197 Torque
N
⋅
m lbf
⋅
ft 0.7375
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