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Kollmorgen B-206-B-22-S-2
Product Brief: Same architecture as B-204-C-21 but with B-winding (lower torque constant / higher speed capability) and suffix “-S-2” indicating smooth shaft (no keyway) and special sealing / connector arrangement per Kollmorgen Goldline option coding. Frame 20 (≈ 89 mm flange). Intended for applications needing higher RPM at moderate torque. Compatible with SERVOSTAR S300/S600/S700 and AKD (120/240 V models for B-winding).
Detailed content
Frame Size: B-20x — 88.9 mm × 88.9 mm (NEMA 34) flange
Shaft Type: Smooth shaft (no keyway) — “S” in suffix; some B-206-B-22-S-2 variants have shaft seal
Shaft Diameter: 12.7 mm (0.500 in)
Rated / Continuous Stall Torque (Tc, B-winding): ≈ 1.3 – 1.6 Nm (lower than C-winding)
Peak Torque (Tp): ≈ 3.9 – 4.8 Nm
Rated Speed (nN, B-winding): 3000 rpm (some B-windings rated 3600–4000 rpm @ 230 VAC line)
Rated Power (Continuous): ≈ 0.4 – 0.5 kW
Rated Current (RMS): ≈ 2.0 – 2.8 A
Peak Current (RMS): ≈ 6.0 – 8.4 A
Torque Constant (Kt): ≈ 0.50 – 0.60 Nm/A
Back-EMF Constant (Ke): ≈ 33–40 V/krpm (RMS line-line)
Winding Resistance (Line-Line, 25 °C): ≈ 3.0 – 4.5 Ω
Winding Inductance (Line-Line): ≈ 6 – 12 mH
Rotor Inertia: ≈ 0.25 × 10⁻⁴ kg·m² (0.25 kg·cm²)
Brake: None (unless -Bxx option present — not in this suffix)
Feedback (Factory): Typically 2-pole resolver (standard Goldline B); verify nameplate
Insulation Class: Class F (155 °C)
Protection Class: IP65 (shaft seal + O-ring on connector)
Cooling: Natural convection
Operating Temperature: 0 °C to +40 °C rated; –20 °C to +55 °C with derating
Connector: Circular M23 / Intercontec (power + feedback pins)
Compliance: cURus, CE
Applicable Industries: High-speed spindle/feeder axes, labelers, small packaging indexers, electronic assembly handlers, textile guide rollers
Installation Requirements: Same as B-204-C-21 — NEMA 34 flange mount; for smooth shaft use keyless locking device or coupling hub; verify feedback pinout matches drive; ground PE.
Usage Notes: B-winding yields higher max speed but lower continuous torque vs C-winding — confirm application torque-speed point lies within motor capability curves; Goldline B is discontinued — AKM63 (smooth shaft option) is closest replacement; resolver auto-commutated by AKD/S700; thermal time constant ~15–20 min.
