BASIC OPERATION
1.2.2 Installing the Servomotorcont.
— 1-8 —
Allowable Load on Shaft End
Mechanical shock to the shaft end must be less than 490 m/s
2
and must be applied no
more than twice.
Design the mechanical system so that
thrust load
and
radial load
applied to the Servo-
motor shaft end during operation falls within the range shown in the following table.
Servomotor Model
SGMM-
Allowable
Radial Load
Fr [N(lb)]
Allowable
Thrust Load
Fs [N(lb)]
Reference Drawing
Standard
A1C31
jj
34.1 (7.7)
14.7 (3.3)
A2C31
jj
44.1 (9.9)
(
)
A3C31
jj
(
)
B3CF1
j
8 (1.8)
4.0 (0.90)
F
B5CF1
j
(
)
(
)
Fr
B9CF1
j
10 (2.2)
Fs
With Gears
A1C3JA
jj
51.9 (11.7)
47.0 (10.5)
Fs
A2C3JA
jj
(
)
(
)
A1C3JB
jj
76.4 (17.2)
A2C3JB
jj
(
)
A1C3JC
jj
89.2 (20.1)
A2C3JC
jj
(
)
Note
a) The box (
j
) at the end of the model number is for the shaft specifications.
b) The allowable load is applied to the shaft end.
TERMS
Thrust load and radial load
Thrust load (Fs): Shaft-end load applied parallel to the
centerline of a shaft
Radial load (Fr): Shaft-end load applied perpendicular to
the centerline of a shaft
Motor
Shaft end
Fr
Fs
1
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