U
Parameter
N
Inertia (incl. Resolver feedback) (3)
Optional Brake Inertia (additional)
Weight (8)
Static Friction (1)
Viscous Damping (1)
Thermal Time Constant
Thermal Resistance
Pole Pairs
Heatsink Size
1. Motor winding at temp. rise, δT = 100°C , at 40°C ambient
2. All data referenced to sinusoidal commutation
3. Add parking brake if applicable for total inertia
4. Motor with resolver feedback and standard heat sink
5. May be limited at some values of Vbus
6. Measured at 25°C
7. See de-rate chart for the de-rate of different motor options.
8. Brake motor adds 0.45 kg [1.0 lbs]
9. Shaft seal increases Static Friction by 0.020 Nm [0.21 lb-in]
Brake options are listed in chapter "Technical Data Brakes" from ➜ #229.
Tolerance Symbol Units
Mechanical Data
kgcm 2
Jm
lb-in-s 2
kgcm 2
Jm
lb-in-s 2
W
Tf
Kdv
Nm/krpm
lb-in/krpm
TCT
mins.
Rthw-a
PP
Kollmorgen | kdn.kollmorgen.com | August 2018
AKM2G Instructions | 7 Technical Data
AKM2G
21D
21E
0.093
8.23E-05
0.040
3.54E-05
kg
1.1
lb
2.4
Nm
0.0040
lb-in
0.04
0.0017
0.015
9.6
°C/W
1.33
3
10" x 10" x 1/4" Aluminum Plate
21G
161