Description
1. At-A-Glance Executive Brief
- Model: MKD041B-144-GG1-KN
- Brand: Bosch Rexroth (Indramat)
- Part Type: Digital AC Synchronous Servo Motor
- Lifecycle Status: Legacy / Mature Production Tier
- System Compatibility: Rexroth digital servo drives (DIAX / ECODRIVE systems)
- Core Protocol: Resolver feedback interface
2. Technical Introduction
Unplanned motion control failure on packaging or handling lines creates costly bottlenecks that demand immediate component swaps.
The Bosch Rexroth MKD041B-144-GG1-KN operates as a compact digital AC synchronous servo motor engineered for high-dynamic-response industrial applications. It features integrated permanent magnets, resolver-based position feedback, and an integrated holding brake, making it well-suited for multi-axis machine tools, handling equipment, and automated assembly systems requiring strict positional accuracy.
- Best Suited For:
- Multi-axis machine tool feed drives and spindle auxiliary axes
- High-speed automated material handling and pick-and-place machinery
- Direct replacement in legacy Indramat motion control architectures
3. Core Technical Specifications
| Parameter | Value |
| Continuous Torque at Standstill | 2.7 Nm |
| Maximum Speed | 7500 RPM |
| Holding Brake Torque | 2.2 Nm (24 VDC) |
| Feedback Type | Resolver (RSF) |
| Shaft Design | Plain shaft with shaft sealing ring (IP65) |
| Motor Mass | 4.4 kg |
| Winding Code | 144 |
| Flange Size | 82 mm |
4. Field Engineer’s Tech Notes
- Resolver Zero Alignment: When replacing this motor, verify the absolute commutation offset via the drive parameters. Mismatch in resolver phasing will cause immediate drive fault tripping or erratic low-speed cogging upon startup.
- Shaft Seal and Fluid Exposure: The integrated shaft sealing ring provides an IP65 protection rating against ambient oil mist and dust; however, continuous direct exposure to aggressive synthetic cutting fluids can degrade the seal lip over time. Inspect the seal interface during routine preventive maintenance intervals.
5. Adaptive QA & Testing Protocol
Every unit undergoes dynamic run-testing coupled to a matching Rexroth drive rack to verify phase balance, thermal sensor continuity, and resolver feedback signal integrity across variable speeds up to its rated threshold. The integrated holding brake is bench-tested for proper engagement and release timing under 24 VDC excitation. Complete electrical test logs and functional inspection videos are available upon request prior to shipment.
6. Buyer’s FAQ
- What is the delivery lead time for urgent replacements?Standard stock items ship within one business day via expedited global couriers to minimize plant downtime during emergency outages.
- Are these units supplied as new surplus or refurbished?We stock both verified New Surplus (NSFP) and fully overhauled, bench-tested units backed by a standard operational warranty.
- Is this exact winding code interchangeable with different suffixes?The winding code 144 and specific feedback configuration must match your drive controller’s parameter set to ensure torque and speed profiles remain identical to the original factory specification.
