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Kollmorgen B-102-A-22
Product Family: B Series (Compact Brushless Servo Motor)
Product Overview:
The B-102-A-22 is a compact brushless DC servo motor from Kollmorgen’s B-series product line, designed for space-constrained applications requiring precise motion control. The “102” indicates a 102 mm frame size (outer diameter). “A-22” encodes the winding and feedback configuration.
Detailed content
Technical Specifications:
| Parameter | Value |
|---|---|
| Motor Type | Brushless DC (BLDC) / PMSM |
| Frame Size | 102 mm (outer diameter) |
| Continuous Torque | 2.8 Nm |
| Peak Torque | 8.4 Nm (3x continuous, 10s) |
| Rated Speed | 3000 RPM (continuous) |
| Max Speed | 4500 RPM |
| Rated Voltage | 48 VDC (bus) |
| Continuous Current | 7.5 A |
| Peak Current | 22.5 A |
| Torque Constant (Kt) | 0.37 Nm/A |
| Back-EMF Constant (Ke) | 37 V/1000 RPM |
| Rotor Inertia | ~95 g·cm² |
| Feedback Device | Incremental encoder — 2048 lines (8192 counts/rev quadrature) |
| Encoder Output | RS-422 Line Driver (A, B, Z) |
| Shaft Type | Round shaft with keyway — 14 mm diameter |
| Shaft Length | 30 mm (standard) |
| Enclosure Rating | IP54 (with connector) |
| Weight | ~2.1 kg |
| Operating Temperature | -10°C to +40°C (continuous) |
Material Composition:
- Housing: Aluminum alloy 6061-T6, black anodized
- Shaft: Hardened stainless steel
- Magnets: NdFeB N42SH
- Windings: Class H insulation, copper
- Bearings: Sealed ball bearings — lifetime lubricated
Structural Features:
- 102 mm diameter cylindrical body — compact for the torque class
- Rear-mounted M23 connector for power and encoder
- Keyed shaft, 14 mm — standard for medium-load couplings
- IP54 seal — protected against dust and splashing water
Working Principle:
Electronic commutation via a 3-phase servo drive. Rotor position detected by the incremental encoder. The drive switches stator phases in sequence to maintain a 90° electrical angle between stator field and rotor magnets, producing maximum torque.
Advantages:
- High torque-to-size ratio — 2.8 Nm in 102 mm frame
- IP54 rating — suitable for dusty and wet environments
- NdFeB magnets — best torque density in this class
- Keyed shaft — positive drive, no slip
Applicable Industries:
Robotic arms, gantry systems, material handling, packaging, printing, textile machinery, medical devices
Series: B-102 (102 mm frame)
Installation Requirements:
- Mount with flexible coupling — alignment tolerance: <0.05 mm offset, <0.1° angular
- Cable bend radius: minimum 40 mm at connector
- Do not exceed 4500 RPM
- Ensure adequate airflow — forced cooling at continuous rating recommended
Usage Notes:
- Brushless — zero maintenance on commutation side
- Encoder signal integrity — use shielded cable, ground shield at drive end only
- Do not apply axial loads >50 N on shaft
- Demagnetization temperature: 150°C — monitor motor temperature
