Frameless BLDC Motor

DS25mm Series

The DS25mm Series frameless motor is a compact 25 mm direct-drive solution for high-speed integration where low mass and space efficiency matter. This 24 VDC motor delivers 70 W nominal power, 0.032 N·m nominal torque, speeds up to 26,000 rpm, and a frameless design for flexible system integration.

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Artikelnummer: DS25mm Series Kategorie:

Beschreibung

The DS25mm Series is a frameless motor family built around a 25 mm stator outer diameter and a compact low-mass rotor/stator set. The listed version, 25ZWC10X-1, uses a 12-slot, 7-pole-pair design with star winding, 120° commutation, and no integrated feedback method. It is specified for 24 VDC operation, insulation class F, and S2 duty.

Key performance data supports high-speed compact drive integration. No-load speed reaches 26000 RPM, with a nominal speed of 22650 RPM. Nominal output is 70 W with 0.032 N·m nominal torque, while peak torque reaches 0.105 N·m at 13 A peak current. The motor has 0.42 Ω phase resistance, 0.123 mH phase inductance, a torque constant of 0.009 Nm/A, and a back-EMF constant of 0.65 Vrms/Krpm. Low moving mass is supported by a 3.2 g rotor weight and 1.47 g·cm² rotor inertia.

  • Frameless 25 mm platform for compact embedded drive assemblies
  • High-speed capability up to 26000 RPM with 22650 RPM nominal speed
  • 70 W nominal power from a lightweight stator/rotor set
  • Peak torque of 0.105 N·m for short-duty load demand
  • Suitable for applications that require an external feedback solution or sensorless operation, as no feedback device is integrated

Typical use cases are compact high-speed systems where the motor is integrated directly into the machine structure and low rotor inertia is beneficial. Electrical insulation data includes 600VAC/3mA/1s dielectric strength and 50 MΩ insulation resistance at 500 VDC. The stator weight is 22 g, and the rotor inner bore is 11.6+0.046 mm.