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Rexroth R911311889 MSK100B-0200-NN-M1-BG1-NNNN Servo Motor
| Place of Origin | Germany |
| Brand Name | REXROTH |
| Model Number | MSK100B-0200-NN-M1-BG1-NNNN |
Product Overview
The Rexroth R911311889 MSK100B-0200-NN-M1-BG1-NNNN is an MSK synchronous servo motor featuring multiturn absolute feedback, a plain sealed shaft and an electrically released holding brake. It is designed for controlled industrial axes where accurate position recovery and stationary load holding are required.
Main Product Information
| Material Number | R911311889 |
| Model | MSK100B-0200-NN-M1-BG1-NNNN |
| Cooling | Natural Convection |
| Encoder | M1 Multiturn Absolute Hiperface Encoder |
| Connection | Fixed Connector on Side B |
| Shaft | Plain Shaft with Shaft Sealing Ring |
| Holding Brake | Brake Option 1 |
| Design | Standard NNNN Design |
| Protection Class | IP65 |
Reference Motor Data
| Maximum Speed | 4,100 rpm |
| Continuous Torque at Standstill | 28 Nm |
| Maximum Torque | 102 Nm |
| Continuous Current | 14.7 A |
| Maximum Current | 66.2 A |
| Rotor Inertia | 0.0192 kg·m² |
| Basic Motor Weight | Approximately 34 kg |
Encoder and Brake Notes
The M1 feedback system is an optical multiturn absolute encoder using the Hiperface interface. The drive and encoder cable must support M1 communication. This feedback configuration is useful when the controller requires absolute position information across multiple revolutions.
Brake option 1 is an electrically released holding brake. It is intended to hold a stationary axis after controlled stopping. It must not be used as a regular dynamic service brake or personnel-safety brake. Brake voltage, wiring and controller timing must be checked during commissioning.
The plain shaft requires a suitable clamping coupling. The coupling must be correctly aligned and selected for the required torque and operating speed.
Applications
Typical applications include vertical handling axes, machine tools, packaging machinery, printing equipment, winding systems and automated assembly machines. Final selection depends on load inertia, acceleration, continuous torque, brake holding requirement and thermal operating conditions.
Replacement Checklist
- Confirm R911311889 and the full type code.
- Verify M1 Hiperface encoder compatibility.
- Confirm B-side connector clearance.
- Check the plain-shaft coupling.
- Verify brake option 1 wiring and control sequence.
Inquiry reference: Rexroth R911311889 / MSK100B-0200-NN-M1-BG1-NNNN.
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