REXROTH MSK040C-0450-NN-S1-UP0-NNNN – IndraDyn S Servo Motor for Compact, High‑Precision Motion

The Bosch Rexroth IndraDyn S MSK040C-0450-NN-S1-UP0-NNNN is a compact synchronous servo motor designed for precise positioning and fast cyclic moves in limited space. From my experience, this frame size fits really well in pick-and-place stations, small conveyors, and light rotary indexers where smooth low-speed control and quick acceleration matter more than raw torque. One thing I appreciate is how consistently these MSK motors pair with IndraDrive controllers—tuning time is typically short, and the Hiperface feedback keeps the system stable even in dynamic cycles.

Company’s Order Placement Process and Guarantees

• Warranty: 365 days
• Delivery: 1 week if in stock; not more than one month at the latest
• Payment: 50% advance payment; full payment before delivery
• Express carriers: FedEx, UPS, DHL

Key Features

• IndraDyn S platform – A proven Rexroth servo family known for reliable dynamics and tight position control in multi-axis machines.
• Frame size 040, length C – Compact footprint that typically fits 60 mm-class flanges; ideal where cabinet or machine space is tight.
• Winding 0450 – Suited for balanced speed/torque in lightweight axes; commonly used in packaging and electronics assembly.
• NN (no holding brake) – Reduces inertia and cost for applications that don’t require a brake, like vertical-load-free axes.
• S1 Hiperface feedback – Single-turn Hiperface encoder for precise commutation and smooth low-speed performance with IndraDrive.
• UP0 shaft variant – Straight shaft configuration that suits typical coupling or pulley-driven mechanics.
• IP65-ready with mated connectors – In most cases the motor meets IP65 when installed with the correct Rexroth connector set, suitable for industrial environments.
• Surface-cooled – Natural convection cooling keeps it simple; no external fan or liquid loop in standard form.

Technical Specifications

Related or Supporting Products

• IndraDrive Cs (HCS01) – Compact drive controllers well-matched to MSK040 torque/current levels; great for small multi-axis machines.
• IndraDrive C / M (HCS02 / HCS03) – For higher bus power or when you need additional safety functions and more I/O.
• Feedback and power cable sets for MSK – Pre-assembled Rexroth cable kits (various lengths) for Hiperface feedback and 3‑phase power lead routing.
• Similar motors – MSK040B-xxxx (shorter length), MSK050C-xxxx (more torque in a larger frame) for axes that need different torque envelopes.
• Next-generation alternative – MS2N03x series: higher encoder resolution and improved thermal utilization; useful when you want more power density.

Quick field note: a packaging OEM told us the MSK040C with S1 feedback “made tuning straightforward and sped up their changeover cycles by a noticeable margin.”

Installation & Maintenance

• Mounting & environment: Use a flat, rigid flange surface; keep ambient 0–40 °C and avoid direct coolant spray unless protected. Maintain clearance for convection cooling.
• Wiring: Use Rexroth-approved power and Hiperface feedback cables. You might notice that keeping cable shields 360° terminated at the drive reduces EMI and encoder noise.
• Cabinet & grounding: Route motor power separate from signal leads; star-ground the machine plate. In many cases, bonding the motor body to the machine frame improves noise immunity.
• Safety: NN variant has no brake—add external safety (mechanical stop or vertical load holding) if required. Lock-out/tag-out before mechanical work.
• Routine checks: Inspect connectors for strain and ingress; keep shaft coupling aligned to avoid bearing load. Periodically clean dust and verify firmware parameters in the IndraDrive.
• Service: Encoder and bearings are long-life; if vibration rises unexpectedly, check coupling balance and alignment first before considering component replacement.

Quality & Certifications

• CE conformant; manufacturer is ISO 9001 certified for quality management
• UL-recognized motor family and RoHS-compliant components (typical for this series)
• Manufacturer’s warranty support aligned with the 365-day coverage stated above

If you’re matching this motor to an existing axis, share the drive model and cycle profile, and I can suggest a cable set and an HCS0x drive size that typically lands with 20–30% headroom for thermal stability.