Description
Bosch Rexroth MSK076C-0300-NN-S1-UP0-NNNW — IndraDyn S Servo Motor
Key Technical Specifications
| Parameter | Specification |
|---|---|
| Requested model | MSK076C-0300-NN-S1-UP0-NNNW |
| Product family | IndraDyn S |
| Motor type | Synchronous servomotor |
| Frame size | 076 |
| Motor length | C |
| Winding code | 0300 |
| Cooling method | Natural convection |
| Encoder type | Optical, singleturn Hiperface — matching documented variant |
| Encoder resolution | 128 signal periods — matching documented variant |
| Connector | Rotatable plug, 240° — matching documented variant |
| Shaft | Keyway — matching documented variant |
| Continuous standstill torque at 60 K overtemperature | 12.0 Nm |
| Continuous standstill torque at 100 K overtemperature | 13.5 Nm |
| Maximum torque | 43.5 Nm |
| Maximum current | 32.4 A RMS |
| Maximum permissible speed | 4,700 rpm |
| Torque constant at 20°C | 1.84 Nm/A |
| Winding resistance at 20°C | 1.85 Ω |
| Winding inductance | 12.6 mH |
| Rotor inertia | 0.00430 kg·m² |
| Degree of protection | IP65 for the documented matching configuration |
| Weight | Approximately 13.8 kg for the documented matching configuration |
Source: Bosch Rexroth IndraDyn S motor technical data and a matching model listing. Values are configuration-dependent and must be checked against the exact motor nameplate and project documentation.
Product Introduction
The Bosch Rexroth IndraDyn S MSK076C-0300 series is a family of synchronous servomotors used in industrial motion-control systems requiring controlled torque, speed, and position. The documented MSK076C-0300 configuration provides 12 Nm continuous standstill torque at a 60 K winding overtemperature and 13.5 Nm at 100 K, with a maximum torque rating of 43.5 Nm. Cooling is by natural convection, so application sizing must account for ambient temperature, mounting conditions, duty cycle, and heat transfer.
The requested full designation, MSK076C-0300-NN-S1-UP0-NNNW, should be confirmed before purchase. Available technical references describe the closely matching ...-NNNN suffix. A final-character discrepancy may matter for order configuration or traceability, so do not automatically normalize the requested code without checking the motor nameplate or manufacturer records.
MSK076C-0300-NN-S1-UP0-NNNW
Application Scenarios & Field Pitfalls — The Engineer’s Perspective
Engineering Pain Point
Servo motor replacement is not simply a frame-size match. The winding, feedback interface, shaft design, brake configuration, and drive parameters all affect whether the motor can operate correctly in the existing machine. A motor that bolts into place may still be incompatible with the installed drive or feedback cable.
Typical Applications
- Machine tools: Controlled feed axes and positioning systems requiring coordinated servo motion.
- Packaging equipment: Indexing, feeding, and repeatable position control.
- Printing and converting machinery: Synchronized motion and controlled acceleration or deceleration.
- Industrial automation: Servo-driven mechanisms where the motor must match the drive, encoder interface, and mechanical transmission.
These are typical applications for the MSK synchronous servomotor family, not confirmation of the original use of this exact suffix.
Technical Pitfalls to Avoid
- Verify the full model code. Confirm whether the nameplate actually ends in
NNNWorNNNN. Do not assume these suffixes are interchangeable. - Match the encoder interface. The documented S1 configuration uses a singleturn Hiperface encoder. Check the drive’s supported feedback interface and the installed cable before substitution.
- Check the shaft and coupling. Confirm keyway dimensions, shaft diameter, seal arrangement, and coupling requirements against the mechanical drawings.
- Confirm the brake configuration. The matching
UP0-NNNNlisting specifies no holding brake. If the machine requires a holding brake, do not assume this motor provides one. - Size for the real duty cycle. Continuous standstill torque and maximum torque are different operating limits. Assess RMS current, acceleration demands, load inertia, thermal conditions, and cycle time.
- Check speed and drive limits. The documented matching configuration lists a maximum speed of 4,700 rpm. Confirm that the intended operating speed and drive settings remain within the applicable motor limits.
- Inspect the motor before commissioning. Check connectors, shaft condition, bearing noise, insulation condition, and evidence of moisture or impact damage. Carry out electrical tests according to the manufacturer’s procedure.
- Validate the drive parameters. Use the correct motor data and approved commissioning procedure. Incorrect feedback or motor parameters can cause drive faults, poor positioning, or unexpected motion.
Related Products
The following models are useful comparison references within the Bosch Rexroth IndraDyn S family. They are not confirmed direct replacements for the requested suffix.
- MSK076C-0300-NN-S1-UP0-NNNN — Closely matching documented model; verify the final suffix before substitution.
- R911312441 — Order-number reference associated with MSK076C-0300-NN-S1-UP0-NNNN in secondary catalog data.
- — Similar motor family and winding, but the documented shaft code differs.
- — Related motor configuration with a multiturn Hiperface encoder designation.
- — Encoder-code comparison candidate; verify the exact order configuration before use.
- MSK076C-0450-NN — Same frame-size and length family with a different winding code; electrical characteristics differ.
Check the official type-code definitions and the drive project’s approved motor list before selecting any alternative.
Procurement Note
When requesting a quotation for MSK076C-0300-NN-S1-UP0-NNNW, provide a clear photograph of the complete nameplate, including the type designation and any material or serial number. Ask the supplier to confirm the final four-character suffix against manufacturer documentation rather than silently replacing it with NNNN.
For a replacement motor, verify the installed drive model, feedback cable, mechanical coupling, brake requirement, and stored motor parameters. Request condition details and inspection or test evidence for the actual unit being supplied. Do not infer that a motor is new, unused, refurbished, or tested solely from its part number.
