DC motor series PG521 with planetary gearbox

Torque: 2.5...100 kg-cm
Speed: 4.0...1030 rpm
Voltage: 12, 24 V
Diameter: 52 mm
  • DC commutator motor with carbon brushes
  • It contains a filter to suppress electromagnetic interference
  • Bidirectional, the direction of rotation can be set by changing the polarity of the supply voltage
  • Planetary gearbox with metal gears
  • Output shaft is supported by a ball bearing
  • There is also a version with encoder

Gear motor specifications

Ratio 3:1 4:1 12:1 15:1 19:1 26:1 43:1 53:1 66:1 81:1 100:1
12 VRated torque [kg-cm] 2.5 3.1 7.7 9.5 11.8 16 23 28 35 44 54
Rated speed [rpm] 1030 835 295 238 192 139 84 68 55 44 36
24 VRated torque [kg-cm] 3.6 4.5 11 13.5 17 23 33 41 51 62 78
Rated speed [rpm] 1000 815 285 230 185 136 82 67 54 44 35
Wieght [g] 1395 1395 1580 1580 1580 1580 1770 1770 1770 1770 1770
Ratio 113:1 150:1 230:1 285:1 353:1 488:1 676:1 936:1
12 VRated torque [kg-cm] 60 67 100 100 100 100 100 100
Rated speed [rpm] 32 24 15.5 12.8 10.4 7.6 5.6 4.0
24 VRated torque [kg-cm] 88 97 100 100 100 100 100 100
Rated speed [rpm] 31 23.5 15.6 12.9 10.5 7.7 5.7 4.1
Wieght [g] 1770 1940 1940 1940 1940 1940 1940 1940
Dimensions of DC motor with planetary gearbox - series PG521

Gearboxes specifications

  • Backlash, at no-load ≤ 3 °
  • Radial load ≤ 20 kg (10 mm from flange)
  • Shaft axial load ≤ 10 kg
  • Shaft press fit force max. ≤ 30 kg
  • Radial play of shaft ≤ 0.04 mm
  • Thrust play of shaft ≤ 0.3 mm
  • Operating temperature range -10...60 °C
  • Operating relative humidity 20...85 %
Ratio 3, 4:1 12, 15:1 19:1 43, 53, 66, 81, 100, 113:1 150, 212, 230, 285, 353, 488, 676, 939:1
Rated permissible torque [kg-cm] 10.0 30.0 50.0 100.0 100.0
Efficiency [%] 80 70 70 60 50
Length L [mm] 53.0 68.5 68.5 84.0 99.5

Motor data

Rated voltage
[V]
Rated torque
[g-cm]
Rated speed
[rpm]
Rated current
[mA]
No load speed
[rpm]
No load current
[mA]
Rated output
[W]
12 900 3620 ≤4100 4000 ≤1200 33.5
24 1300 3550 ≤2850 4000 ≤700 48.6
Series PG521 - motor characteristics 12 VSeries PG521 - motor characteristics 24 V

Encoder specifications

The motor can have a magnetic encoder with two Hall sensors with a phase shift of 90°. The output is connected as an open collector. The supply voltage is in the range from 3.5 to 20 V. The length of the wires is 100 mm. We offer suitable PCB connectors.

Encoder connector connection - PG420, PG520
  • 5 pulses per motor revolution (PPR) and senzor
  • Length of rear cover (L) 18 mm

Wire connection

  1. black: motor power supply -
  2. red: motor power supply +
  3. brown: encoder power supply +
  4. green: encoder power supply GND
  5. blue: output from hall sensor A
  6. purple: output from hall sensor B
© 2024 - Ing. Jiří Gross - DC motors with spur and planetary gearbox, linear actuators