Chapter 11  Specifications|ASDA-A&A+ Series 
Revision April 2009     11-23 
11.10    Dimensions of Medium Inertia Servo Motor (ASMTM Series) 
 
Model  ASMT10M250 ASMT15M250 ASMT20M250  ASMT30M250
A  130 130 180 180 
B 9 9 13.5 13.5 
C  145 +0.2 –0.2  145 +0.2 –0.2  200 +0.2 –0.2  200 +0.2 –0.2 
D  22h6 +0.0 –0.013 22h6 +0.0 –0.013 35h6 +0.0 –0.016  35h6 +0.0 –0.016
E  110h7 +0.0 –0.035 110h7 +0.0 –0.035 114.3h7 +0 –0.035  114.3h7 +0 –0.035
F (without brake)  143  158  164  212 
F (with brake)  181  196  213  258 
G  55 55 75 75 
H  15 15 20 20 
I  4 4 4 4 
J  44 44 65 65 
K  25 +0.0 –0.1  25 +0.0 –0.1  38 +0.0 –0.2  38+0.0 –0.2 
L  8h9 +0.0 –0.036  8h9 +0.0 –0.036  10h9 +0.0 –0.036  10h9 +0.0 –0.036
M 8 8 10 10 
N  7 7 8 8 
P  40 40 60 60 
Weight (without brake)  4.8 (10.58)  7.0 (15.43)  12.0 (26.46)  17.0 (37.48) 
Weight (with brake)  7.5 (16.53)  9.7 (21.38)  19.0 (41.89)  24.0 (52.91) 
NOTE
 
1)  Dimensions are in millimeters. Weights are in kilograms (kg) and (pounds (lbs)). 
2)  Dimensions and weights of the servo motor may be revised without prior notice. 
3)  The boxes () in the model names are for optional configurations. (Please refer to section 1.2 for model 
explanation.) 
4)   Actual measured values are in metric units. Dimensions and weights in (imperial units) are for reference 
only. 
Call 1(800)985-6929 for Sales
Call 1(800)985-6929 for Sales