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
Applications
- Dosing and Dispensing Systems
- Clinical Diagnostics
- Lab Automation
- Power Hand Tools
- Seat Actuation
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| 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 |
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| 25GT2R82 drawing | 2D Drawing |
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| 25GT2R82 3D drawing | 3D Drawing |
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| Portescap MotionCompass: Guide to Interactive Motor Selection (brochure) | Brochure |
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