Yaskawa Sigma Mini - Manual (Page 166)

SERVO SELECTION AND DATA SHEETS
4.2.2 Mechanical Characteristics
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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
SGMM-
Allowable
Radial Load
Fr [N(lb)]
Allowable
Thrust Load
Fs [N(lb)]
Reference Drawing
Standard A1C31jj 34.1 (7.7) 14.7 (3.3)
A2C31jj 44.1 (9.9)
( )
A3C31jj
( )
B3CF1j 8 (1.8) 4.0 (0.9)
F
B5CF1j
( ) ( )
Fr
B9CF1j 10 (2.2)
Fs
With Gears A1C3JAjj 51.9 (11.7) 47.0 (10.5)
Fs
A2C3JAjj
( ) ( )
A1C3JBjj 76.4 (17.2)
A2C3JBjj
( )
A1C3JCjj 89.2 (20.1)
A2C3JCjj
( )
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.
Mechanical Tolerance
The tolerances of the Servomotor output shaft and installation are shown in the following
table.
Tolerance (T.I.R.) Reference Diagram
Standard With Re-
duction
Gears
g
Perpendicularity between flange
face and output shaft
A
0.04 0.06
Mating concentricity of flange O.D.
B
0.04 0.05
Run-out at end of shaft
C
0.02 0.04
Note T.I.R. = Total Indicator Reading