29
Magtrol Hysteresis Dynamometers
Chapter 4 – Testing
OPERA
TION
TORQUE
SPEED (rpm)
0
5000
10000
15000
20000
25000
30000
0
0
8
56
16
112
24
168
32
224
40
280
(oz·in)
(mN·m)
Figure 4–4 HD 400 Power Absorption Curve
hd-500
shaft diameter
0.3745 in / 0.3750 in
(9.512 mm / 9.525 mm)
shaft height
4.00 in (101.6 mm)
torque range
120.0 oz·in
8.50 kg·cm
850 mN·m
input inertia
8.05 × 10
-5
lb·ft·s²
maximum speed
25,000 rpm
maximum input power
continuous duty: 80 W
< 5 minutes:
400 W
TORQUE
SPEED (rpm)
0
0
24
170
48
340
72
510
96
680
120
850
(oz·in)
(mN·m)
0
5000
10000
15000
20000
25000
30000
Figure 4–5 HD 500 Power Absorption Curve
hd-510
shaft diameter
0.3745 in / 0.3750 in
(9.512 mm / 9.525 mm)
shaft height
4.00 in (101.6 mm)
torque range
120.0 oz·in
8.50 kg·cm
850 mN·m
input inertia
8.05 × 10
-5
lb·ft·s²
maximum speed
25,000 rpm
maximum input power
continuous duty: 375 W
< 5 minutes:
750 W
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