Outer Diameter: 80 mm (3.15 in)

Inner Diameter (Bore): 22 mm (0.87 in)

Overall Length: 32 mm (1.26 in)

Rated Continuous Torque: 3.0 Nm (26.55 lb-in)

Peak Torque: 9.0 Nm (79.65 lb-in)

Rated Speed: 3,000 RPM

Maximum Speed: 5,000 RPM

Continuous Current: 12.0 A RMS

Peak Current: 36.0 A

Voltage Constant (Ke): 18.5 V/krpm

Torque Constant (Kt): 0.177 Nm/A

Terminal Resistance: 0.42 Ω (Phase-to-Phase, 20°C)

Terminal Inductance: 0.28 mH (Phase-to-Phase)

Rotor Inertia: 45 × 10⁻⁶ kg·m²

Mechanical Time Constant: 12 ms

Electrical Time Constant: 0.67 ms

Thermal Resistance (Rotor to Ambient): 2.8 °C/W

Encoder Type: Multi-Turn Absolute Encoder, 17-Bit (131,072 Counts/Rev), Single-Turn: 16-Bit (65,536 Counts/Rev)

Encoder Interface: EnDat 2.2 Protocol

Shaft/Bore Configuration: Smooth Bore, No Keyway (A1 = Smooth Bore)

Cooling Method: Conduction Cooling (Liquid or Air via Custom Housing)

Housing Material: Stainless Steel 17-4PH (Sleeve), Anodized Aluminum 7075-T6 (End Bells)

Magnets: Neodymium Iron Boron (NdFeB), Grade N42UH

Winding Insulation Class: Class H (180°C)

Bearing: Not Included (Customer-Specified)

Weight: 0.85 kg (1.87 lb)

Electrical Connector: M23 12-Pin Connector (Power + Encoder)

Ambient Operating Temperature: -20°C to +80°C

Compliance Standards: CE, RoHS, REACH

Applicable Industries: Rotary Tables, Direct-Drive Robots, Gimbal Systems, Antenna Positioning, Semiconductor Wafer Stages, Optical Gimbals, Aerospace Actuation

Key Features:

• Ironless core eliminates cogging torque for sub-arc-second positioning accuracy
• High torque density enables direct-drive elimination of gearboxes
• Stainless steel sleeve provides corrosion resistance
• EnDat 2.2 multi-turn absolute encoder for absolute position retention
• Frameless design enables seamless mechanical integration

Installation Requirements:

• Press-fit into housing with interference fit: +0.02 mm to +0.05 mm
• Thermal paste or liquid cooling jacket required for continuous operation above 3 A
• Encoder cable must be shielded and routed away from power cables
• Maximum radial runout on bore: 0.01 mm