Brushless motor 28ZWC58L-1

DCBLDC24 V

Overview
The 28 mm brushless DC motor 28ZWC58L-1 provides a rated torque of 0.05 N·m and rated power of 52.4 W at 24 V. The motor features star winding, 2 pole pairs and Hall-sensor feedback as standard. Gearbox and incremental encoder are available as optional accessories.

Motor Characteristics
Motor part number: 28ZWC58L-1
Body length (LT): 57.5 mm
Pole pair: 2
Terminal resistance, Phase-Phase: 0.676 Ω
Terminal inductance, Phase-Phase: 0.2 mH
Winding connection: Star
Insulation class: B
Duty type: S2
Feedback: Hall sensors
Commutation angle: 120°
Insulation strength (withstand voltage): 500 VAC / 1 kHz / 1 mA / 1 s
Insulation resistance: 100 MΩ (20 °C)
Weight: 144 g
Rated voltage: 24 V
Rated power: 52.4 W
Rated torque: 0.05 N·m
Rated speed: 10000 RPM
Rated current: 3 A
No-load speed: 12000 RPM
No-load current: 0.5 A
Motor efficiency: 77 %
Cogging torque: 12.8 mN·m
Noise (ambient 20 dB, test distance 1 m): <50 dB
Enclosure - Ambient thermal resistance: 0.38 K/W
Ambient temperature (specified): 25 °C
Maximum winding temperature: 75 °C
Torque constant: 0.017 N·m/A
Back-EMF constant (effective): 1.78 V/Krpm
Peak torque: 0.15 N·m
Peak current: 9 A
Rotor inertia: 0.011 Kg·cm²

Dimensional drawing / Lead-out & Wiring
Lead-out types: UL3265 AWG26 (Hall signals) and UL3265 AWG22 (motor phases).

• Hall wiring — Yellow: Hall U (Hu); Green: Hall V (Hv); Blue: Hall W (Hw); Red: Hall power supply positive (Vcc); Black: Hall power supply negative (GND)
• Phase wiring (AWG22) — Yellow: U phase; Green: V phase; Blue: W phase

Torque Performance
Speed‑torque and performance curves are provided for the 28 mm motor family; refer to the product documentation for detailed torque/speed graphs.

Options

• Precision planetary gearbox — multiple stages and gear ratios
• Silent planetary gearbox — low-noise option
• Incremental encoder

Precision Planetary Gearbox — key data (by stage)
Stage options: Stage 1 / Stage 2 / Stage 3 / Stage 4
Example gear ratios: Stage 1: 3.9, 5.3; Stage 2: 16, 21, 28; Stage 3: 62, 83, 111, 150; Stage 4: 243, 326, 439, 590, 794
Max. backlash (°): 0.5 / 0.6 / 0.7 / 0.75
Max. continuous output power (W): 100 / 50 / 25 / 8.0
Max. peak output power (W): 125 / 62 / 31 / 10
Max. continuous input speed (rpm): 6000 / 7000 / 7000 / 7000
Max. peak input speed (rpm): 7500 / 8750 / 8750 / 8750
Max. continuous torque (N·m): 1.25 / 2.90 / 5.0 / 5.0
Max. peak torque (N·m): 1.6 / 3.6 / 6.3 / 6.3
Max. efficiency (%): 90 / 81 / 72 / 65
Weight (g): 103 / 150 / 174 / 198
Gearbox length L (mm): 24.2 / 36.9 / 43.5 / 50.2

Specifications

• Model / Part number: 28ZWC58L-1
• Frame / Diameter: 28 mm
• Body length (LT): 57.5 mm
• Pole pairs: 2
• Rated voltage: 24 V
• Rated power: 52.4 W
• Rated torque: 0.05 N·m
• Peak torque: 0.15 N·m
• Rated speed: 10000 RPM
• No-load speed: 12000 RPM
• Rated current: 3 A
• No-load current: 0.5 A
• Peak current: 9 A
• Torque constant: 0.017 N·m/A
• Back-EMF constant: 1.78 V/Krpm (effective)
• Terminal resistance (Phase-Phase): 0.676 Ω
• Terminal inductance (Phase-Phase): 0.2 mH
• Motor efficiency: 77 %
• Cogging torque: 12.8 mN·m
• Insulation class: B
• Insulation strength: 500VAC / 1 kHz / 1 mA / 1 s
• Insulation resistance: 100 MΩ (20 °C)
• Duty type: S2
• Feedback: Hall sensors
• Commutation angle: 120°
• Noise: <50 dB (ambient 20 dB, 1 m)
• Enclosure - Ambient thermal resistance: 0.38 K/W
• Ambient temperature: 25 °C
• Maximum winding temperature: 75 °C
• Weight: 144 g
• Available options: Precision planetary gearbox, Silent gearbox, Incremental encoder