Small AC Gear Reducer Motor 90W

The 5RK series AC gear motor (90–120W) features a robust 90mm frame and delivers high torque output for demanding industrial applications. Designed for stability and durability, it ensures reliable performance under continuous operation. With support for single-phase and three-phase power systems, this motor is ideal for heavy-duty automation, conveyor systems, and mechanical transmission equipment.

  • Output Power: 90W / 120W
  • Voltage: 110V / 220V / 380V (Single-phase & Three-phase options)
  • Rated Speed: 1350 – 1550 r/min
  • Rated Torque: 544 – 910 mN·m

List of motor characteristics

5RK AC deceleration motor (90 – 120W) (90mm)

Motor ModelSpecsOutput Power
W
Voltage
V
Frequency
Hz
Current
A
Starting TorqueRated TorqueRated
Revolution
r/min
Capacity/Ve
μF/VAC
JWD TypesmN.mgf.cmmN.mgf.cm
5RK90GU-CFReversible
30min
901-phase
220V
500.688378370670670013506/450
5RK90A-CF600.726926920544544015506/450
5RK90GU-AFReversible
30min
901-phase
110V
501.3883783706706700135024/250
5RK90A-AF601.569269205445440155024/250
5RK90GU-UF——903-phase
380V
500.32837837067067001350——
5RK90A-UF600.3692692054454401550——
5RK120GU-CFReversible
30min
1201-phase
220V
500.95113711370910910013508/450
5RK120A-CF6019559550764764015008/450
5RK120GU-AFReversible
30min
1201-phase
110V
501.901137113709109100135030/250
5RK120A-AF602.195595507647640150030/250
5RK120GU-UF——1203-phase
380V
500.3411371137091091001350——
5RK120A-UF600.3195595507647641500——
  • Parameters in above table refer to motor alone,without any load device.
  • Permissible change in rated speed and rated current of the motor is within the range of±5%.

Outline dimension drawing

44444

Allowable load for the gear motor

Geared-down
parameter
Synchronous speed5003002001501201007560504537.53025201512.51087.5653
Ratio357.51012.5152025303640506075100120150180200250300500
Max allowable
load
90WKg.cm/N.m15.7
1.54
26.5
2.6
39.4
3.86
52.5
5.15
65.7
6.44
71
6.96
94.6
9.28
118
11.6
141
13.9
170
16.7
189
18.5
200
19.6
120Wkg.cm/N.m21.5
2.11
36
3.52
54
5.28
70
6.88
87.57
8.59
98
9.6
126
12.4
148
14.5
189
18.5
200
19.6
  • The speed is based on the synchronous motor speed reduction ratio as a benchmark calculated by dividing the value of.Actual speed will vary the size of the load changes in less than the values shown in2~15%.
  • Hope to the table of the reduction ratio is greater than the further reduction,it would be installed between the motor and the reducer reduction ratiio of 10 the middle of the reducer.
  • When the load torque exceeds the maximum allowable load torque gear motor,and a locked rotor situation exists,please slow down box at the junction of the output shaft and load torque limit device installed to ensure the normal operation gearbox.
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