![HRSM - Size 23 [57mm]](https://www.kocomotion.de/wp-content/uploads/2025/02/hybrid-rotary_57mm.png)
The size 23 [57mm] Hybrid Rotary Stepper Motor has Max. 2N·m of holding torque.
Encoders and 57mm frame planetary gearbox solutions are available.
For special windings or customization, Please contact KOCO for further information.
| Parameter | Unit | 23H2042 | 23H2051 | 23H2065 | 23H2076 | 23H2045 | 23H2055 | 23H2100 |
|---|---|---|---|---|---|---|---|---|
| Current | A | 1.0 | 2.0 | 3.0 | 4.0 | 1.0 | 2.0 | 5.0 |
| Resistance | Ohm | 4.2 | 1.5 | 0.9 | 0.6 | 4.5 | 1.6 | 0.46 |
| Inductance | mH | 9 | 4.4 | 2.7 | 2.4 | 12 | 5.2 | 2.3 |
| Holding Torque | N.m | 0.6 | 1.0 | 1.6 | 2.0 | 0.8 | 1.2 | 3.0 |
| Rotor Inertia | g·cm² | 140 | 240 | 350 | 480 | 180 | 280 | 720 |
| Length | mm | 42.5 | 51.5 | 65.5 | 76.5 | 45 | 55 | 100 |
| Mass | g | 460 | 640 | 860 | 1060 | 520 | 720 | 1500 |
| Size | Nema | 23 | 23 | 23 | 23 | 23 | 23 | 23 |
| Flange size | mm | 57 | 57 | 57 | 57 | 57 | 57 | 57 |
| Family Specification | Unit | HRSM – Size 23 [57mm] |
|---|---|---|
| Accuracy step angle | 1.8°±5% | |
| Accuracy Resistance | ±10% / 20 C | |
| Accuracy Inductance | ±20% / 1KHz | |
| Insulation class | B | |
| Duty type | S1 | |
| Dielectrical strength | 500 VAC / 1 KHz / 1 mA / 1 s | |
| Insulation resistance | 100 MΩ / 500 VDC | |
| Permissible radial load(5MM distance from mounting surface) | 180N | |
| Permissible radial load(10MM distance from mounting surface) | 130N | |
| Permissible radial load(15MM distance from mounting surface) | 100N | |
| Permissible radial load(20MM distance from mounting surface) | 90N | |
| End bell | Aluminum alloy | |
| Bearing | Deep groove ball bearing | |
| Magnet | Sintered NdFeB | |
| Shaft | Stainless steel | |
| Wiring | UL 3265, 20/22 AWG |
Technical specifications are for guidance only, as the individual drives and motors are configured for specific applications. Subject to technical and visual changes.
| Parameter | Unit | 23H2042 |
|---|---|---|
| Current | A | 1.0 |
| Resistance | Ohm | 4.2 |
| Inductance | mH | 9 |
| Holding Torque | N.m | 0.6 |
| Rotor Inertia | g·cm² | 140 |
| Length | mm | 42.5 |
| Mass | g | 460 |
| Size | Nema | 23 |
| Flange size | mm | 57 |
Technical specifications are for guidance only, as the individual drives and motors are configured for specific applications. Subject to technical and visual changes.
| Parameter | Unit | 23H2051 |
|---|---|---|
| Current | A | 2.0 |
| Resistance | Ohm | 1.5 |
| Inductance | mH | 4.4 |
| Holding Torque | N.m | 1.0 |
| Rotor Inertia | g·cm² | 240 |
| Length | mm | 51.5 |
| Mass | g | 640 |
| Size | Nema | 23 |
| Flange size | mm | 57 |
Technical specifications are for guidance only, as the individual drives and motors are configured for specific applications. Subject to technical and visual changes.
| Parameter | Unit | 23H2065 |
|---|---|---|
| Current | A | 3.0 |
| Resistance | Ohm | 0.9 |
| Inductance | mH | 2.7 |
| Holding Torque | N.m | 1.6 |
| Rotor Inertia | g·cm² | 350 |
| Length | mm | 65.5 |
| Mass | g | 860 |
| Size | Nema | 23 |
| Flange size | mm | 57 |
Technical specifications are for guidance only, as the individual drives and motors are configured for specific applications. Subject to technical and visual changes.
| Parameter | Unit | 23H2076 |
|---|---|---|
| Current | A | 4.0 |
| Resistance | Ohm | 0.6 |
| Inductance | mH | 2.4 |
| Holding Torque | N.m | 2.0 |
| Rotor Inertia | g·cm² | 480 |
| Length | mm | 76.5 |
| Mass | g | 1060 |
| Size | Nema | 23 |
| Flange size | mm | 57 |
Technical specifications are for guidance only, as the individual drives and motors are configured for specific applications. Subject to technical and visual changes.
| Parameter | Unit | 23H2045 |
|---|---|---|
| Current | A | 1.0 |
| Resistance | Ohm | 4.5 |
| Inductance | mH | 12 |
| Holding Torque | N.m | 0.8 |
| Rotor Inertia | g·cm² | 180 |
| Length | mm | 45 |
| Mass | g | 520 |
| Size | Nema | 23 |
| Flange size | mm | 57 |
Technical specifications are for guidance only, as the individual drives and motors are configured for specific applications. Subject to technical and visual changes.
| Parameter | Unit | 23H2055 |
|---|---|---|
| Current | A | 2.0 |
| Resistance | Ohm | 1.6 |
| Inductance | mH | 5.2 |
| Holding Torque | N.m | 1.2 |
| Rotor Inertia | g·cm131 | 280 |
| Length | mm | 55 |
| Mass | g | 720 |
| Size | Nema | 23 |
| Flange size | mm | 57 |
Technical specifications are for guidance only, as the individual drives and motors are configured for specific applications. Subject to technical and visual changes.
| Parameter | Unit | 23H2100 |
|---|---|---|
| Current | A | 5.0 |
| Resistance | Ohm | 0.46 |
| Inductance | mH | 2.3 |
| Holding Torque | N.m | 3.0 |
| Rotor Inertia | g·cm132 | 720 |
| Length | mm | 100 |
| Mass | g | 1500 |
| Size | Nema | 23 |
| Flange size | mm | 57 |
Technical specifications are for guidance only, as the individual drives and motors are configured for specific applications. Subject to technical and visual changes.
