RELATED PRODUCTS
28LT12 Brush DC Coreless Motor
28LT12
The 28LT12 is a cost efficient solution for applications requiring acceleration (start/stop) with a long brush lifetime.
Product Highlights
- Ironless construction
- Alnico magnet for high performance
- Graphite/copper commutation
- Long brush life
- Winding possibilities
- 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 | 28LT12-219.49 | 28LT12-416E.49 |
|---|---|---|
| Motor Diameter (in) | 1.102 | 1.102 |
| Motor Diameter (mm) | 28 | 28 |
| Shaft Play - Axial (in) | 0.0059 | 0.0059 |
| Shaft Play - Axial (mm) | 0.15 | 0.15 |
| Shaft Play - Radial (in) | 0.0007 | 0.0007 |
| Shaft Play - Radial (mm) | <0.018 | <0.018 |
| Back EMF Constant (V/1000 rpm) | 2.24 | 4.26 |
| Continuous Current, Max (A) | 1.13 | 0.63 |
| Continuous Torque, Max (mNm) | 23 | 24 |
| Continuous Torque, Max (oz-in) | 3.26 | 3.4 |
| Mechanical Time Constant (ms) | 13.9 | 21.4 |
| Motor Regulation (10³/Nms) | 13.4 | 12 |
| No-Load Current, Typical (mA) | 65 | 35 |
| No-Load Speed (rpm) | 7860 | 7345 |
| Nominal Voltage (V) | 18 | 32 |
| Rotor Inertia (gcm²) | 10.7 | 17.8 |
| Rotor Inertia (oz-in-sec² 10ˉ⁶) | 151.471 | 251.98 |
| Torque Constant (mNm/A) | 21.4 | 40.7 |
| Torque Constant (oz-in/A) | 3.03 | 5.76 |
| Weight (g) | 135 | 135 |
| Weight (oz) | 4.76 | 4.76 |
| Ambient Operating Temperature, Max: Rotor (°C) | 100 | 100 |
| Ambient Operating Temperature, Max: Rotor (°F) | 212 | 212 |
| Ambient Operating Temperature Range: Motor (°C) | -30 to 85 | -30 to 85 |
| Ambient Operating Temperature Range: Motor (°F) | -22 to 185 | -22 to 185 |
| Continuous Speed, Max (rpm) | 10000 | 10000 |
| Efficiency (%) | 72 | 73 |
| Friction Torque (mNm) | 1.39 | 1.42 |
| Friction Torque (oz-in) | 0.197 | 0.201 |
| Output Power (W) | 19 | 20 |
| Rotor Inductance (mH) | 0.5 | 2.4 |
| Shaft Load, Max - Axial (5 mm. from bearing) (N) | 6 | 6 |
| Shaft Load, Max - Axial (5 mm. from bearing) (oz) | 21.6 | 21.6 |
| Shaft Load, Max - Radial (5 mm. from bearing) (N) | 250 | 250 |
| Shaft Load, Max - Radial (5 mm. from bearing) (oz) | 899.2 | 899.2 |
| Stall Torque at Nominal Voltage (mNm) | 63 | 65 |
| Stall Torque at Nominal Voltage (oz-in) | 8.92 | 9.2 |
| Terminal Resistance (Ohm) | 6.15 | 19.9 |
| Thermal Resistance (rotor/body) (°C/W) | 5 / 12 | 5 / 12 |
| Thermal Time Constant (rotor/stator) (s) | 27 / 760 | 27 / 760 |
| Document | Document Type | Language | File Type |
|---|---|---|---|
| 28LT12 Specification Page | Specification Page |
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| 28LT12 drawing | 2D Drawing |
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| 28LT12 3D drawing | 3D Drawing |
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| Portescap MotionCompass: Guide to Interactive Motor Selection (brochure) | Brochure |
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