25GT2R82

25GT2R82 Brush DC Coreless Motor

25GT2R82 Brush DC Coreless Motor

25GT2R82

The 25GT2R82 brush DC motor offers high power density combined with graphite/copper commutation to achieve high acceleration.

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

Part Number 25GT2R82-219E.1 25GT2R82-222E.1 25GT2R82-222P.1 25GT2R82-230E.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) 4.3 3.6 1.88 2.4
Continuous Current, Max (A) 1.06 1.44 2.5 2.2
Continuous Torque, Max (mNm) 41 47 42 47
Continuous Torque, Max (oz-in) 5.81 6.66 5.95 6.67
Mechanical Time Constant (ms) 5.7 4.4 5.2 5.5
Motor Regulation (10³/Nms) 4.4 3.4 4 3.3
No-Load Current, Typical (mA) 65 80 140 120
No-Load Speed (rpm) 8260 4075 9460 10000
Nominal Voltage (V) 36 15 18 24
Rotor Inertia (gcm²) 13 13 13 12.5
Rotor Inertia (oz-in-sec² 10ˉ⁶) 184.031 184.031 184.031 176.953
Torque Constant (mNm/A) 41.1 34.4 18 23
Torque Constant (oz-in/A) 5.82 4.87 2.55 3.26
Weight (g) 145 145 145 145
Weight (oz) 5.11 5.11 5.11 5.11
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% 73% 81% 82%
Friction Torque (mNm) 2.65 2.75 2.5 2.76
Friction Torque (oz-in) 0.375 0.389 0.354 0.391
Output Power (W) 33 36.8 33 37
Rotor Inductance (mH) 0.5 0.3 0.08 0.14
Shaft Load, Max - Axial (5 mm. from bearing) (N) 25 25 25 25
Shaft Load, Max - Axial (5 mm. from bearing) (oz) 89.9 89.9 89.9 89.9
Shaft Load, Max - Radial (5 mm. from bearing) (N) 100 100 100 100
Shaft Load, Max - Radial (5 mm. from bearing) (oz) 359.6 359.6 359.6 359.6
Stall Torque at Nominal Voltage (mNm) 194 129 249 315
Stall Torque at Nominal Voltage (oz-in) 27.47 18.27 35.26 44.61
Terminal Resistance (Ohm) 7.4 4 1.3 1.75
Thermal Resistance (rotor/body) (°C/W) 5 / 11 5 / 11 5 / 11 5 / 11
Thermal Time Constant (rotor/stator) (s) 10 / 450 10 / 450 10 / 450 10 / 450
Document Document Type Language File Type
25GT2R82 Specification Page Specification Page
25GT2R82 drawing 2D Drawing
25GT2R82 3D drawing 3D Drawing
Portescap MotionCompass: Guide to Interactive Motor Selection (brochure) Brochure