SJME-04AMC41-OY - Omron Junma AC servomotor

Omron Junma AC servomotor with a documented system role and explicit evidence boundaries.

Documented function

Rebuilt from individual evidence

System position

Unknown: Evidence boundary

The captured exact-reference listings identify SJME-04AMC41-OY as an Omron Junma AC servomotor rated at 400 W, 3000 rpm, and 1.27 Nm, without a brake and with IP67 protection.

The Technoline listing records a 200 V supply, a keyed shaft, round metal connectors, and the OYMC factory designation for SJME-04AMC41-OY.

The motor sits between a compatible Junma servo drive and the mechanical load, providing controlled rotary motion.

Unknown: The installed Junma drive, feedback configuration, tuning, mechanical load, and current unit condition are not established by the captured sources.

Exact reference: SJME-04AMC41-OY
Category: Motors / Servo
Evidence checked: 2026-09-12

System role

This section explains what the product does and where it acts in the surrounding system.

Function: Drives the mechanical load with controlled rotary motion when paired with a compatible Junma servo drive.
System position: Sits between a compatible Junma servo drive and the mechanical load.
Upstream / inputs: Receives controlled electrical output from the compatible Junma servo drive.
Downstream / outputs: Drives the connected mechanical load through its keyed shaft.
Limitations: Unknown: The installed Junma drive, feedback configuration, tuning, mechanical load, and current unit condition are not established by the captured sources.

Evidence ledger

Facts, inferences, and unknowns are kept separate.

Facts

The captured exact-reference listings identify SJME-04AMC41-OY as an Omron Junma AC servomotor rated at 400 W, 3000 rpm, and 1.27 Nm, without a brake and with IP67 protection.
Confidence: high
- eshop.technoline.cz — retrieved 2026-09-12; medium confidence
- www.lektronix.com — retrieved 2026-09-12; medium confidence
The Technoline listing records a 200 V supply, a keyed shaft, round metal connectors, and the OYMC factory designation for SJME-04AMC41-OY.
Confidence: medium
- eshop.technoline.cz — retrieved 2026-09-12; medium confidence

Inferences

The motor sits between a compatible Junma servo drive and the mechanical load, providing controlled rotary motion.
Confidence: medium
Rationale: The exact listings identify a servo motor and its operating characteristics; the adjacent drive and load are the normal system stages inferred from that documented motor role.
- eshop.technoline.cz — retrieved 2026-09-12; medium confidence
- www.lektronix.com — retrieved 2026-09-12; medium confidence

Unknowns

Unknown: The installed Junma drive, feedback configuration, tuning, mechanical load, and current unit condition are not established by the captured sources.
Confidence: low
Missing evidence: The installed Junma drive, feedback configuration, tuning, mechanical load, and current unit condition are not established by the captured sources.

System position diagram

Diagram showing SJME-04AMC41-OY between Compatible Junma servo drive and Mechanical load. — System position of SJME-04AMC41-OY from the captured evidence.

View Mermaid source

flowchart LR
  upstream["Compatible Junma servo drive"] --> item["SJME-04AMC41-OY"]
  item --> downstream["Mechanical load"]

View diagram labels

Nodes: Compatible Junma servo drive; SJME-04AMC41-OY; Mechanical load
Edges: Documented upstream connection; Documented downstream function

Next action

Decision: The exact-reference evidence supports the documented Junma servomotor role; verify drive pairing, feedback, and installation before replacement.

Next action: Match the exact reference, Junma drive, feedback arrangement, and mechanical load against the cited documentation before sourcing.

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