DSM1 disc synchronous AC motors (coreless and iron core) up to 2.26 kW

Country: · Model: DSM1

Three-phase disc (axial-flux) synchronous motors DSM1 with NdFeB magnets and a flat design, only 36.5 mm long along the axis in the shortest version. Power up to 2.26 kW, speed 500–3000 rpm. They are installed where mounting space is limited, namely in wheel and hub drives of battery-powered machines, positioning axes and compact servo drives.

Type: three-phase disc synchronous motor with NdFeB magnets
Design: coreless and iron core
Power: up to 2260 W (DSM1-117: 0.21–0.47 kW; DSM1-150N1: 0.87–2.26 kW; DSM1-115N1: 0.38 kW)
Rated speed: 500–3000 rpm

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Technical specifications

Type	three-phase disc synchronous motor with NdFeB magnets
Design	coreless and iron core
Power	up to 2260 W (DSM1-117: 0.21–0.47 kW; DSM1-150N1: 0.87–2.26 kW; DSM1-115N1: 0.38 kW)
Rated speed	500–3000 rpm
Torque M0	1.2–11.8 N·m
Moment of inertia	10–40 kg·cm²
Axial length	from 36.5 mm
DC link voltage	24…60 V (DSM1-115/125); 400 V and 24…540 V (DSM1-117/150), per documentation
Insulation class / protection	F / IP44 (higher on request)
Options	tachogenerator, pulse encoder, brake, gearbox

Specifications are taken from the manufacturer’s technical documentation. Updated 11/10/2026.

Description

Two versions are available. The coreless version has a winding without iron, high overload capacity, no cogging and very quiet operation. The iron core version has very high power density and low cogging torque thanks to an optimized rotor, and with a variable winding it can work as a torque motor. Torque is practically constant over a wide speed range and is produced by the NdFeB magnets. The iron core DSM1-117 delivers 0.21 kW at 500 rpm and 0.47 kW at 3000 rpm (current 1.8–1.9 A, J 10 kg·cm², M0 6.3 N·m). The DSM1-150N1 gives 0.87 kW at 700 rpm and 2.26 kW at 3000 rpm (current 4.2–9.1 A, J 40 kg·cm², M0 up to 11.8 N·m). The coreless DSM1-115N1 gives 0.38 kW at 3000 rpm and M0 of 1.2 N·m.

How to choose

The motor type depends on the task. The coreless one is chosen when quiet running and no cogging are needed, and the iron core one when power density and torque matter, including in torque mode. Insulation class F, protection rating IP44, higher on request. According to the documentation, the different types are designed for converters with a DC link voltage of 24…60 V (low-voltage battery systems) or 400 V and 24…540 V. The motors have low inertia and high dynamics, and are supplied with a tachogenerator, pulse encoder, holding brake and gearbox, and a separate version exists for a high-torque drive. An example of use is a hub drive together with the b maXX mobil battery controller.

Request a price and lead time

DSM1 disc synchronous AC motors (coreless and iron core) up to 2.26 kW. We reply within one business day.

Or email office@usk.ua or call +38 (044) 339-50-20.

FAQ

What is the minimum axial length of the disc motor?

In the shortest version the motor needs only 36.5 mm along the axis, so it is installed where mounting space is very limited.

How does the coreless DSM1 differ from the iron core version?

The coreless one has a winding without iron, has no cogging and runs very quietly. The iron core one gives higher power density and lower cogging torque.

What power and speed do the DSM1 motors have?

Up to 2.26 kW for the DSM1-150N1 at 3000 rpm and from 0.21 kW for the DSM1-117 at 500 rpm.

What protection rating does the motor have?

IP44 as standard, a higher rating is offered on request. Insulation class F.

Which options can be ordered?

Tachogenerator, pulse encoder, holding brake and gearbox.