DC motor series SG300 with spur gearbox

Torque: 1.0...4.5 kg-cm
Speed: 6.9...258 rpm
Voltage: 12, 24 V
Diameter: 30 mm
  • DC carbon-brush motor
  • It contains a filter to suppress electromagnetic interference
  • Bidirectional, the direction of rotation can be set by changing the polarity of the supply voltage
  • Spur gearbox with metal gears (except first stage)
  • Only first stage is made of bakelite for noise reduction purpose
  • Sleeve bearings

Gear motor specifications

Ratio 20:1 30:1 50:1 60:1 75:1 100:1 150:1
12 VRated torque [kg-cm] 1.0 1.5 2.0 2.0 3.0 3.0 4.0
Rated speed [rpm] 255 168 107 91 73 56 37.5
24 VRated torque [kg-cm] 1.0 1.5 2.0 2.0 3.0 3.0 4.0
Rated speed [rpm] 258 168 107 91 73 56 37.4
Wieght [g] 162 162 162 162 162 162 171
Ratio 180:1 250:1 400:1 600:1 900:1
12 VRated torque [kg-cm] 4.5 4.5 4.5 4.5 4.5
Rated speed [rpm] 32 24 15.2 10.4 6.9
24 VRated torque [kg-cm] 4.5 4.5 4.5 4.5 4.5
Rated speed [rpm] 31.8 24 15.1 10.3 6.9
Wieght [g] 171 171 171 171 171
Dimensions of DC motor with spur gearbox - series SG300

Gearboxes specifications

  • Backlash, at no-load ≤ 2 °
  • Radial load ≤ 0.8 kg (10 mm from flange)
  • Shaft axial load ≤ 0.6 kg
  • Shaft press fit force max. ≤ 10 kg
  • Radial play of shaft ≤ 0.05 mm
  • Thrust play of shaft ≤ 0.35 mm
  • Operating temperature range -10...60 °C
  • Operating relative humidity 20...85 %
Ratio 20:1 30:1 50, 60:1 75, 100:1 150:1 180, 250, 400,
600, 900:1
Rated permissible torque [kg-cm] 1.0 1.5 2.0 3.0 4.0 4.5
Efficiency [%] 66 66 66 66 53 53
Length L [mm] 23 23 23 23 28 28

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 78 5290 ≤530 6500 ≤150 4.22
24 74 5250 ≤250 6500 ≤85 3.97
Series SG300 - motor characteristics

More pictures

DC motor série SG300 zepředu
DC motor série SG300 zepředu
SG300 - DC motor with spur gearbox - rear view
SG300 - DC motor with spur gearbox - rear view
SG300 - DC motor with spur gearbox
SG300 - DC motor with spur gearbox
© 2024 - Ing. Jiří Gross - DC motors with spur and planetary gearbox, linear actuators