Brand :
RexrothThe Bosch Rexroth MSK040B-0450-NN-M1-UG0-NNNN is a high-precision industrial servomotor engineered for complex automation systems.
Identified by material number (MNR) R9113116887, this specific size 40 motor stands out due to its integrated absolute multi-turn encoder (M1). Combined with a plain shaft design and a winding speed of 6,000 RPM, it offers exceptional positional accuracy. The unit utilizes a natural convection cooling mode, safely dissipating heat without the need for external blower fans, thereby reducing maintenance risks and preventing thermal damage.
| Brand | Bosch Rexroth |
| Model / Type Code | MSK040B-0450-NN-M1-UG0-NNNN |
| Material Number (MNR) | R9113116887 |
| Encoder System (M1) | Absolute Multiturn Optical Encoder (128 increments, Hiperface) |
| Shaft Profile (G) | Plain shaft (No keyway, no sealing ring) |
| Cooling Method (U) | Natural Convection |
| Maximum Speed | 6,000 RPM (min-1) |
Ensure you have the right encoder and shaft combination for your system:
| Model Code | Material No. | Key Features |
|---|---|---|
| MSK040B-0450-NN-M1-UG0-NNNN | R9113116887 | Current: Multiturn (M1) + Plain Shaft (G) |
| MSK040B-0450-NN-S1-UG0-NNNN | R911316886 | Singleturn (S1) + Plain Shaft (G) |
| MSK040B-0450-NN-S1-UP0-NNNN | R911321778 | Singleturn (S1) + Keyway Shaft (P) |
Q: Why choose the Rexroth MSK040B absolute multi-turn encoder motor (R9113116887) over single-turn models?
A: The primary advantage of the 'M1' optical multiturn encoder is its ability to track exact positioning across multiple rotations. If your facility experiences a power outage, the machine does not need to execute a referencing or "homing" cycle upon reboot, significantly minimizing production downtime.
Q: What coupling types are best for the MSK040B-0450-NN-M1-UG0-NNNN plain shaft?
A: Because the 'G' in the part number indicates a plain shaft without a keyway, frictional clamping couplings are highly recommended. These provide the zero-backlash connection essential for the high-precision positioning this motor is designed for.
Q: Is the Bosch Rexroth Indramat R9113116887 replacement suitable for older IP65 environments?
A: Yes. This unit falls under the IP65 protection category (excluding the electrical connections), ensuring it remains highly resistant to dust and water ingress in harsh industrial and legacy Indramat system environments.
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