From the industry’s smallest 20mm square frame to the powerful 86mm square frame, a wide variety of sizes are available to suit any application.

20mm Square Series

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Rated Current (A/Phase) Model Holding Torque (N·m / kgf·cm) Coil Resistance (Ω/Phase) Moment of Inertia (10⁻⁷ kg·m²) Motor Length L (mm) Weight (g)
Single Shaft Double Shaft
0.35A 01K‑S513 01K‑S513‑W 0.013 (0.13) 6.1 1.9 30 50
0.35A 02K‑S515 02K‑S515‑W 0.024 (0.24) 11.4 4 46.5 85
24mm Square Series
0.75A 02K‑S523 02K‑S523‑W 0.017 (0.17) 1.1 4.2 30.5 70
0.75A 04K‑S525 04K‑S525‑W 0.028 (0.28) 1.7 8.3 46.5 120
42mm Square Series
0.75A 1K‑S543 1K‑S543‑W 0.13 (1.3) 1.7 35 33 200
0.75A 2K‑S544 2K‑S544‑W 0.18 (1.8) 2.2 54 39 240
0.75A 3K‑S545 3K‑S545‑W 0.24 (2.4) 2.2 68 47 310
60mm Square Series
0.75A 4K‑S564 4K‑S564‑W 0.45 (4.5) 2.6 175 48.5 500
1.4A 4K‑M564 4K‑M564‑W 0.45 (4.5) 0.8 175 48.5 500
0.75A 8K‑S566 8K‑S566‑W 0.8 (8.0) 3.4 220 56.5 700
1.4A 8K‑M566 8K‑M566‑W 0.8 (8.0) 1.1 220 56.5 700