The 28L28-413E.49 is a 28 mm diameter coreless brush DC motor with precious metal commutation, designed for compact precision applications. It operates at 28 V nominal voltage, delivering 5,325 rpm no-load speed and 32 mNm stall torque. Maximum continuous torque is 19.4 mNm at 0.40 A, with 80% efficiency. Terminal resistance is 33.0 Ω, back-EMF constant is 5.20 mV/rpm, and torque constant is 49.70 mNm/A. Rotor inertia is 13.50 g·cm², mechanical time constant is 17.8 ms, and weight is 125 g. Operating temperature ranges from -30°C to 85°C, with a maximum rotor temperature of 100°C. Sleeve bearings support radial loads up to 6.0 N and axial loads up to 250 N. The motor has a 9-segment commutator and rotates clockwise when viewed from the front.
28L28 Brush DC Coreless Motor
28L28
Featuring a cost effective design with an Alnico magnet, this 28L28 brush DC motor continuously delivers a torque up to 20 mNm while reaching up to 80% efficiency and maintains a long lifetime.
Product Highlights
Applications
| Portescap | |
|---|---|
| Product Category | DC Motors |
| Product Number | 28L28-413E.49 |
| Product Name | 28L28 Brush DC Coreless Motor |
| Commutation | Brush |
| DC Construction | Coreless / Slotless |
| DC Voltage Range | 28.0 VDC |
| Torque Constant | 7.04 in-oz/amp (49.7 mN-m/amp) |
| Output Power | 0.0125 HP |
