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Kollmorgen 57S-3.000-G0
Product Brief: “57S” denotes a NEMA 23 (57 mm square flange) size step/servo motor; “3.000” typically indicates 3.0 in-lb (≈0.34 Nm) rated holding torque or winding variant; “G0” = standard stack length / no brake / standard connector. Often used as a high-performance hybrid stepper or slotless BLDC in OEM machines.
Detailed content
Typical Specifications (57 mm / NEMA 23 size — approximate for 3.0 version):
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Frame Size: 57 × 57 mm (NEMA 23)
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Rated Holding Torque: ~3.0 oz-in to 3.0 lb-in range depending on winding; typical 57S high-torque: 1.3–2.2 Nm (check nameplate)
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Step Angle: 1.8° (200 steps/rev) for hybrid stepper; or 3-phase BLDC winding if used as servo
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Rated Current: 2.0–4.2 A/phase (depends on winding code)
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Voltage (winding): 24–75 VDC typical drive supply
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Shaft: 6.35 mm (¼”) or 8 mm keyed
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Encoder/Feedback: none (open-loop) or optional incremental encoder depending on variant
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Insulation Class: Class B or F (130 °C / 155 °C)
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Construction: Aluminum housing, ball bearings both ends
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Mounting: Flange mount, through-bolt or tapped holes
Applications: XY tables, small conveyors, labeling machines, medical analyzers.
Notes: When driven by a Kolloren stepper drive (e.g., P5000/P6000 series) or closed-loop stepper drive, verify winding resistance/inductance match before commissioning.
