25GST2R82

25GST2R82 Brush DC Coreless Motor

25GST2R82 Brush DC Coreless Motor

25GST2R82

The 25GST2R82 (short version) offers high power density combined with graphite/copper commutation. This brush DC motor is able to achieve high acceleration and dynamics in a small package size.

Product Highlights

  • Ironless construction
  • Neodymium magnet for high performance
  • High power density package
  • Long brush life
  • Compact design
  • Winding possibilities
  • High acceleration
  • Low self heating

Customization Available

  • Cable or terminal outputs
  • Coil modifications - resistance and inductance
  • Custom shafts - flats, knurling, diameter, length
  • Fixation holes
  • Sleeve or ball bearings

Applications

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Part Number 25GST2R82-216E.1 25GST2R82-216P.1 25GST2R82-228E.1 25GST2R82-230E.1
Motor Diameter (in) 0.984 0.984 0.984 0.984
Motor Diameter (mm) 25 25 25 25
Shaft Play - Axial (in) 0.0059 0.0059 0.0059 0.0059
Shaft Play - Axial (mm) 0.15 0.15 0.15 0.15
Shaft Play - Radial (in) 0.0012 0.0012 0.0012 0.0012
Shaft Play - Radial (mm) <0.03 <0.03 <0.03 <0.03
Back EMF Constant (V/1000 rpm) 4.4 2.3 1.6 1.56
Continuous Current, Max (A) 0.75 1.45 2.1 2.3
Continuous Torque, Max (mNm) 30 30 30 33
Continuous Torque, Max (oz-in) 4.25 4.25 4.25 4.67
Mechanical Time Constant (ms) 7.1 6.8 6.9 5.9
Motor Regulation (10³/Nms) 7.1 6.8 6.9 5.9
No-Load Current, Typical (mA) 40 70 110 110
No-Load Speed (rpm) 7850 10320 11125 11450
Nominal Voltage (V) 35 24 18 18
Rotor Inertia (gcm²) 10 10 10 10
Rotor Inertia (oz-in-sec² 10ˉ⁶) 141.562 141.562 141.562 141.562
Torque Constant (mNm/A) 42 22 15.3 14.9
Torque Constant (oz-in/A) 5.95 3.12 2.17 2.11
Weight (g) 111 111 111 111
Weight (oz) 3.92 3.92 3.92 3.92
Ambient Operating Temperature, Max: Rotor (°C) 100 100 100 100
Ambient Operating Temperature, Max: Rotor (°F) 212 212 212 212
Ambient Operating Temperature Range: Motor (°C) -30 to 85 -30 to 85 -30 to 85 -30 to 85
Ambient Operating Temperature Range: Motor (°F) -22 to 185 -22 to 185 -22 to 185 -22 to 185
Continuous Speed, Max (rpm) 10000 10000 10000 10000
Efficiency (%) 78 81 81 83
Friction Torque (mNm) 1.68 1.54 1.68 1.64
Friction Torque (oz-in) 0.238 0.218 0.238 0.232
Output Power (W) 23.3 24 23.8 26
Rotor Inductance (mH) 0.8 0.1 0.1 0.1
Shaft Load, Max - Axial (5 mm. from bearing) (N) 12 12 12 12
Shaft Load, Max - Axial (5 mm. from bearing) (oz) 43.2 43.2 43.2 43.2
Shaft Load, Max - Radial (5 mm. from bearing) (N) 68 68 68 68
Shaft Load, Max - Radial (5 mm. from bearing) (oz) 244.6 244.6 244.6 244.6
Stall Torque at Nominal Voltage (mNm) 118 160 172 206
Stall Torque at Nominal Voltage (oz-in) 16.71 22.66 24.36 29.17
Terminal Resistance (Ohm) 12.5 3.3 1.6 1.3
Thermal Resistance (rotor/body) (°C/W) 6 / 13 6 / 13 6 / 13 6 / 13
Thermal Time Constant (rotor/stator) (s) 10 / 450 10 / 450 10 / 450 10 / 450