166
7 HK-ST SERIES
7.6 Geared servo motor
Permissible load for the rotary servo motor shaft
■With flange-output type gear reducer for high precision applications, flange mounting: G5
*1 The moment inertia value is converted into the equivalent value on the servo motor shaft of the servo motor combined with the gear
reducer (and an electromagnetic brake).
*2 The radial load points of high-precision gear reducers are as follows.
*3 Do not subject the shaft to loads greater than the indicated value. Each value in the table indicates the load to be applied independently.
Rotary
servo
motor
Reduction
ratio
Gear
reducer
model
Moment of inertia
*1
[× 10
-4
kg•m
2
]
Radial
load
point
L
[mm]
Permissible load
*2*3
Mass
[kg]
Standard With an
electromagnetic
brake
Permissible
radial load
[N]
Permissible
thrust load
[N]
Standard With an
electromagnetic
brake
HK-
ST52G5
1/5 20A 6.55 8.80 32 416 1465 7.1 8.8
1/11 6.46 8.71 32 527 1856 7.5 9.2
1/21 32A 8.80 11.1 57 1094 4359 11 13
1/33 8.60 10.9 57 1252 4992 11 13
1/45 8.60 10.9 57 1374 5478 11 13
HK-
ST102G5
1/5 20A 9.30 11.6 32 416 1465 8.0 9.7
1/11 32A 12.0 14.2 57 901 3590 12 14
1/21 11.6 13.8 57 1094 4359 12 14
1/33 50A 13.4 15.6 62 2929 10130 22 23
1/45 13.3 15.5 62 3215 11117 22 23
HK-
ST152G5
1/5 20A 12.1 14.4 32 416 1465 9.0 11
1/11 32A 14.7 17.0 57 901 3590 13 15
1/21 50A 17.1 19.4 62 2558 8845 23 24
1/33 16.1 18.4 62 2929 10130 23 24
1/45 16.0 18.3 62 3215 11117 23 24
HK-
ST202G5
1/5 32A 41.0 46.0 57 711 2834 20 25
1/11 40.8 45.8 57 901 3590 20 25
1/21 50A 42.8 47.8 62 2558 8845 30 35
1/33 41.8 46.8 62 2929 10130 30 35
1/45 41.8 46.8 62 3215 11117 30 35
HK-
ST352G5
1/5 32A 58.2 63.2 57 711 2834 23 28
1/11 50A 61.7 66.7 62 2107 7285 33 38
1/21 60.0 65.0 62 2558 8845 33 38
HK-
ST502G5
1/5 50A 80.9 85.9 62 1663 5751 34 39
1/11 78.9 83.9 62 2107 7285 36 41
HK-
ST702G5
1/5 50A 115 120 62 1663 5751 40 45
L
L: Distance between reducer end face and load center
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