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SERVO SELECTION AND DATA SHEETS
4.2.2 Mechanical Characteristics
4.2.2 Mechanical Characteristics
The mechanical characteristics of the Servomotor are described here.
Allowable Radial Load, Allowable Thrust Load
The output shaft allowable loads for Servomotors are shown below.
Conduct mechanical design so that the thrust loads and radial loads do not exceed the
following values.
Servomotor Model
Standard
With Gears
Note a) The box (j) at the end of the model number is for the shaft specifications.
Mechanical Tolerance
The tolerances of the Servomotor output shaft and installation are shown in the following
table.
Perpendicularity between flange
face and output shaft
Mating concentricity of flange O.D.
Run-out at end of shaft
Note T.I.R. = Total Indicator Reading
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Allowable
SGMM-
Radial Load
Fr [N(lb)]
A1C31jj
34.1 (7.7)
44.1 (9.9)
(
)
A2C31jj
A3C31jj
8 (1.8)
(
)
B3CF1j
B5CF1j
B9CF1j
10 (2.2)
A1C3JAjj
51.9 (11.7)
(
)
A2C3JAjj
A1C3JBjj
76.4 (17.2)
(
)
A2C3JBjj
A1C3JCjj
89.2 (20.1)
(
)
A2C3JCjj
b) The allowable load is applied to the shaft end.
Tolerance (T.I.R.)
Standard
0.04
A
0.04
B
0.02
C
— 4-16 —
Allowable
Thrust Load
Reference Drawing
Fs [N(lb)]
14.7 (3.3)
(
)
4.0 (0.9)
(
)
47.0 (10.5)
(
)
Reference Diagram
With Re-
duction
Gears
0.06
0.05
0.04
Fr
F
Fs
Fs
g
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