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KOLLMORGEN B-604S-A-51-B3
Product Type: Brushless DC Servo Motor with Sinusoidal Commutation
Product Introduction:
The B-604S-A-51-B3 is a frame size 60 mm brushless servo motor from Kollmorgen’s B Series. It is a high-performance motor designed for applications requiring precise position and velocity control with high torque-to-inertia ratio.
Detailed content
Technical Specifications:
| Parameter | Value |
|---|---|
| Frame Size | 60 mm (NEMA 23 equivalent) |
| Motor Type | Brushless DC (BLDC), 3-phase, sinusoidal |
| Rated Torque (Continuous) | 0.63 Nm |
| Peak Torque | 1.89 Nm |
| Rated Speed | 3,000 RPM |
| Max Speed | 5,000 RPM |
| Rated Voltage | 48 VDC |
| Feedback Type | Incremental encoder (2,500 lines, quadrature, 10,000 counts/rev) |
| Insulation Class | Class H (180°C) |
| IP Rating | IP65 (with connector) |
| Weight | ~0.55 kg (motor only) |
| Shaft Type | Smooth shaft, 8 mm diameter, with keyway |
| Operating Temperature | -10°C to +50°C |
| Duty Cycle | Continuous (S1) |
Functional Features:
- High torque density: 0.63 Nm in 60 mm frame
- Low cogging torque: < 1% of rated torque
- Ball bearing design for long life (L10 > 20,000 hours)
- Standard feedback: incremental encoder with differential line driver (RS-422)
- Housing: anodized aluminum, IP65 rated
- Connector: M23 12-pin
Performance Parameters:
| Parameter | Value |
|---|---|
| Torque Constant (Kt) | 0.21 Nm/A |
| Back-EMF Constant (Ke) | 21.0 V/krpm |
| Rotor Inertia | 1.6 × 10⁻⁵ kg·m² |
| Mechanical Time Constant | 4.8 ms |
| Electrical Time Constant | 1.5 ms |
| Thermal Resistance (Rth) | 5.0 K/W |
| Max Axial Load | 25 N |
| Max Radial Load | 80 N |
Material Composition:
- Housing: Aluminum alloy 6061-T6, hard anodized
- Shaft: Hardened stainless steel (17-4 PH)
- Magnets: NdFeB N42SH, samarium-cobalt option available
- Windings: Copper, Class H insulation (polyimide)
- Bearings: Sealed angular contact ball bearings (ABEC 7)
Structural Features:
- 4× M4 mounting holes on 50 mm bolt circle
- M23 connector on rear end
- Keyway per DIN 6885-1
- Smooth shaft, 8 mm diameter
Applicable Industries:
- Semiconductor wafer handling
- Medical robotics
- Laboratory automation
- Small CNC axes
- Pick-and-place machines
Installation Requirements:
- Mount with 4× M4 screws, torque to 1.5 Nm
- Shaft coupling: use flexible coupling (max 0.05 mm misalignment)
- Cable entry: M23 cable gland, torque to 5 Nm
- Connect feedback cable with shield grounded at drive end only
Usage Precautions:
- Do not exceed 5,000 RPM
- Do not apply axial loads > 25 N
- Operate within -10°C to +50°C range
- Store with shaft protected from corrosion
