The 28LT12-219.49 is a 28 mm diameter brush DC coreless motor with a nominal voltage of 18 V, delivering 7,860 rpm no-load speed and 63 mNm stall torque. Its maximum continuous torque is 23 mNm at 10,000 rpm, with a terminal resistance of 6.2 Ω and a back-EMF constant of 2.24 mV/rpm. Efficiency reaches 72%, and maximum continuous current is 1.13 A. Rotor inertia is 10.70 g-cm², mechanical time constant is 13.9 ms, and thermal resistance is 5/12 °C/W for rotor/body and rotor/stator. It operates from -30°C to 85°C, weighs 135 g, and features a 9-segment commutation. Shaft radial load capacity is 6.0 N, axial load is 250 N, with axial play of 0.15 mm and radial play under 0.018 mm.
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
Applications
| Portescap | |
|---|---|
| Product Category | DC Motors |
| Product Number | 28LT12-219.49 |
| Product Name | 28LT12 Brush DC Coreless Motor |
| Commutation | Brush |
| DC Construction | Coreless / Slotless |
| DC Voltage Range | 18.0 VDC |
| Torque Constant | 3.03 in-oz/amp (21.4 mN-m/amp) |
| Output Power | 0.0255 HP |
