The Rexroth R911306868 MSK060C-0300-NN-S1-UG0-NNNN is a synchronous servo motor from the IndraDyn S MSK family, developed for high-precision motion control in industrial automation systems. This exact order code is listed by industrial distributors as a size 060 servo motor with natural convection cooling, a single-turn encoder with 128 signal periods, and no holding brake. In the official MSK060C-0300-NN technical data, the platform is defined by a compact frame, stable torque delivery, IP65 protection, and a maximum speed of 4,900 rpm, which makes it suitable for dynamic machine axes, packaging lines, handling systems, indexing units, and compact production equipment.
Product Identification
| Item | Description |
|---|---|
| Brand | Rexroth |
| Product Family | IndraDyn S MSK |
| Order Number | R911306868 |
| Full Model | MSK060C-0300-NN-S1-UG0-NNNN |
| Product Type | Synchronous servo motor |
| Motor Size | 060 |
| Cooling Method | Natural convection |
| Encoder Configuration | Single-turn encoder, 128 signal periods |
| Holding Brake | Without holding brake |
| Protection Class | IP65 |
| Approximate Motor Weight | 8.5 kg |
| Maximum Speed | 4,900 rpm |
| Maximum Torque | 25 Nm |
The identification data above combine the exact-code listing and the MSK060C-0300-NN technical platform data. The product-page description confirms the encoder type, no-brake configuration, 3-phase design, size 060 format, and natural convection cooling. The technical-data excerpt for MSK060C-0300-NN gives a weight of 8.5 kg, with the bracketed higher figure applying to another configuration, which is why 8.5 kg is the correct working weight for this no-brake version.
Core Technical Data
| Parameter | Value |
|---|---|
| Continuous torque at standstill, 60 K | 8.0 Nm |
| Continuous current at standstill, 60 K | 4.8 A |
| Continuous torque at standstill, 100 K | 8.8 Nm |
| Continuous current at standstill, 100 K | 5.3 A |
| Maximum torque | 25.0 Nm |
| Maximum current | 19.2 A |
| Torque constant at 20 °C | 1.85 Nm/A |
| Rotor inertia | 0.00080 kg·m² |
| Thermal time constant | 15.0 min |
| Maximum speed | 4,900 rpm |
| Sound pressure level | <75 dB(A) |
| Degree of protection | IP65 |
| Weight | 8.5 kg |
These figures come from the MSK060C-0300-NN technical data and associated project-planning references for the MSK family. They show that this motor offers a meaningful increase in torque and inertia capacity compared with smaller-frame servo motors while still remaining compact enough for machinery where installation space matters. The combination of 25 Nm peak torque and 4,900 rpm top speed indicates a motor intended for demanding but controlled servo motion rather than simple constant-speed operation.
Engineering Characteristics and Practical Value
A servo motor like the Rexroth R911306868 is normally selected for applications where repeatability, response speed, and integration stability are more important than raw motor size alone. The MSK060C-0300-NN platform provides 8.0 Nm continuous standstill torque at 60 K and 8.8 Nm at 100 K, which gives machine designers a solid operating range for cyclic loading, frequent acceleration, and short torque peaks. This helps the motor perform well in packaging machinery, feeding systems, tooling axes, light robotic motion, and material handling equipment where the drive must respond quickly but still remain predictable under production load.
Another practical advantage is the balance between power density and manageable installation mass. At approximately 8.5 kg, the motor is substantial enough to deliver industrial-duty torque, but it is still compact enough for machine frames that cannot accommodate large servo packages. For OEM builders and retrofit engineers, this matters because mounting load, shaft alignment, cable routing, and thermal behavior all become easier to manage when the motor remains within a moderate weight range. That makes the model attractive not only for new machine design, but also for replacement work where the original installation space is fixed.
The no-brake configuration is also commercially relevant. This exact motor code is listed without a holding brake, which generally makes it suitable for horizontal axes or applications where the mechanical system does not rely on brake-assisted load holding after power-off. In such cases, using a non-brake version can simplify system design, reduce component complexity, and avoid unnecessary cost. The single-turn encoder configuration, meanwhile, supports precise motion feedback and stable servo control for applications where reliable rotational position within one revolution is the priority.
Why Buyers Search for This Exact Part Number
Industrial buyers rarely search only by family name. In practice, they usually search by full order code because that is the safest way to match the original motor installed in the machine. The full designation R911306868 MSK060C-0300-NN-S1-UG0-NNNN is therefore highly important in product content, quotations, and catalog listings. Using the complete number reduces confusion around cooling type, encoder version, brake option, and mechanical configuration. This is especially important in servo systems, because even small variant differences can affect commissioning, feedback compatibility, or spare-parts interchangeability. The exact-code distributor pages for this motor clearly present the part as a specific IndraDyn S servo motor rather than a generic MSK family reference, which supports accurate identification and procurement.
From a search-engine and industrial-content perspective, this product also lends itself well to clean technical indexing. Buyers commonly search terms such as Rexroth servo motor, R911306868, MSK060C-0300-NN-S1-UG0-NNNN, IndraDyn S motor, 25 Nm servo motor, or 8.5 kg servo motor. A useful product page should therefore include the exact model number, readable technical tables, configuration details, and a realistic explanation of application value. Search engines generally reward this type of structured, specific content because it answers technical search intent directly instead of relying on repetitive keyword stuffing. The precise nature of the Rexroth part number makes it particularly suitable for this style of indexed product content.
Typical Application Environment
| Application Area | Typical Function |
|---|---|
| Packaging equipment | Indexing, sealing, feeding, positioning |
| Conveyor automation | Controlled speed change and stop-position accuracy |
| Assembly machinery | Repetitive motion with stable torque response |
| Handling systems | Transfer, pick-and-place, intermediate axis motion |
| Light machine tools | Controlled rotary or linear servo tasks |
| General industrial automation | Precision motion in compact machine spaces |
In these environments, the motor’s IP65 protection is a significant benefit. It helps the unit tolerate dust and routine washdown exposure better than lower-protection alternatives, which supports long-term reliability in factory conditions. The thermal and acoustic data also suggest a motor intended for continuous industrial service rather than occasional laboratory use. When combined with the known Rexroth IndraDyn S platform, these characteristics make the model appropriate for buyers who prioritize durability, accurate motion, and straightforward system matching.
Conclusion
The Rexroth R911306868 MSK060C-0300-NN-S1-UG0-NNNN is a compact but capable synchronous servo motor designed for precision industrial motion control. Its exact-code configuration identifies it as a natural-convection, single-turn, no-brake servo motor in size 060, while the official MSK060C-0300-NN technical platform provides the key performance picture: 8.0 Nm continuous standstill torque at 60 K, 25 Nm maximum torque, 4,900 rpm maximum speed, IP65 protection, and an approximate motor weight of 8.5 kg. For OEM projects, machine repair, and industrial spare-parts sourcing, this model is a solid choice when accurate part matching, reliable servo performance, and realistic installation dimensions are more important than generic catalog descriptions.
