
sp[Krpm
Vf[Volt] Voltage Constant ( BEMF)
.
.
15 27.81
.
.
sp
rpm
-
o
a
on
pee
.
o
-
o
age
e
ween
wo p
ases.
.
.
.
.
55 101.97
Current Vs. Rotation S
eed
.
.
70 129.7
.
mp
-
urren
ases.
.
sp
rpm
-
o
a
on
pee
.
.
CONDITIO
.
1. Driver - BDH - Hathaway. 2. No external load.
.
3. Including Sensor Brushes. 4. No tool holder.
.
5. Humidity - 50%.
.
.
m
en
empera
ure
-
.
40 0.788
Tor
ue Vs. Curren
.
.
55 1.437
.
.
Kt = 0.018 Nm/Amp
70 2.62
T [Nm] - Spindle Torque.
I
Am
- Current.
m
mp
-
orque
ens
v
y.
Power Vs.
urrent
Rotation
peed
mp
-
urren
.
sp
rpm
-
o
a
on
pee
w
-
ower.
=
rpm
=
rpm
=
rpm
=
rpm
=
rpm
=
rpm
.
.
.
20 Vibration Amplitude Vs. Rotation
peed
.
.
a
m
-
ra
on
mp
u
e.
.
sp
rpm
-
o
a
on
pee
.
.
.
CONDITIO
.
1. Peek to Peek.
.
35 0.17
40 0.177
Vibration Speed Vs. Rotation Speed
.
.
.
.
.
.
.
.
.
Vsf [mm/s] - Vibration Speed.
Vsp [Krpm] - Rotation Speed.
.
sp < 30 Krpm
V
sf
=0.15-0.029*ln(V
sp
)
V
f
= 1.854*V
sp
I
f
= 0.159*e
0.04*Vsp
sp > 30 Krpm
T = 0.018*I
P = 18*I
*Vsp
V
af
=0.056*ln(V
sp
)-0.03
V
sf
=-7.5*10
-5
*V
sp
2
+4.5*10
-3
*Vsp-17.5*10
-3
0
30
60
90
120
150
0 10203040506070
Vsp [Krpm]
Vf [Volt]
0
0.5
1
1.5
2
2.5
3
0 10203040506070
Vsp [Krpm]
If [Amp]
0
0.5
1
1.5
024681012
I [Amp]
T [Nm]
0
300
600
900
1200
1500
01234567
I [Amp]
Pw [W]
0
0.05
0.1
0.15
0.2
0.25
0 5 10 15 20 25 30 35 40 45 50 55 60
Vsp [Krpm]
Vaf [
µ
m]
0
0.4
0.8
1.2
0 5 10 15 20 25 30 35 40 45 50 55 60
Vsp [Krpm]
Vsf [mm/s]
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