Overview
The Lenze GKS05-3MVAK-071C42 is a precision helical-bevel gearmotor combining a compact helical-bevel gearbox with an integrated EN60034 3-phase motor. This unit delivers 1.0 kW continuous output with Class F thermal insulation, making it suitable for demanding industrial positioning, indexing, and drive applications that require smooth, efficient power transmission and precise speed reduction.
Key Features
- Helical-bevel gearbox design for precision positioning and smooth torque delivery
- Integrated 3-phase motor (MDEMARS071-42) with Class F insulation
- IP54 protection rating—sealed against dust and splash in shop-floor environments
- Right-angle shaft orientation with 30 mm diameter keyed output shaft
- Multi-voltage input: 230V, 277V, 400V, or 480V 3-phase at 50/60/87 Hz
- Compact, bolted construction suitable for inline or flange mounting
Technical Specifications
- Part Number: GKS05-3MVAK-071C42
- Motor Part Number: MDEMARS071-42
- Power Rating: 1.0 kW (continuous duty, Class S1)
- Output Speed: 2515 RPM (input motor speed)
- Torque (Starting/Locked Rotor): 331 Nm
- Input Voltage: 230/277/400/480 VAC, 3-phase
- Frequency: 50/60/87 Hz
- Full Load Current: 2.40 A (at 480V)
- Thermal Class: F (155°C)
- IP Rating: IP54 (dust and splash resistant)
- Shaft Design: 30 mm × 60 mm keyed, right-angle output
- Weight: Approximately 85–88 lbs
- Manufacturer: Lenze (Germany)
- Status: Discontinued by manufacturer
Typical Applications
The Lenze GKS05-3MVAK-071C42 is well-suited for:
- Conveyor drive and index positioning systems
- Material handling and lifting mechanisms
- Packaging machinery indexing and registration
- Assembly line automation and synchronized motion control
- Precision positioning in manufacturing processes requiring consistent torque and smooth load distribution
Compatibility & Replacements
Compatible With
- Industrial AC motor control systems rated 480V 3-phase 50/60 Hz
- Soft-starter and VFD (variable frequency drive) control circuits up to rated frequency
- Standard industrial mounting interfaces (NEMA, ISO flange compatibility)
- Planetary and linear actuator assemblies via keyed shaft coupling
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator before ordering. The Lenze GKS05-3MVAK-071C42 is the complete assembly combining gearbox MDEMARS071-42 and motor MDEMARS07-42. No direct equivalent cross-reference confirmed; consult Lenze technical support for alternative models.
Works With
- Standard 3-phase AC power distribution networks (50/60 Hz)
- Motor soft-starters (Class F thermal protection certified)
- Variable frequency drives (VFD) up to rated voltage and frequency ratings
- Industrial coupling and mounting hardware with 30 mm keyed shaft interface
- Condition monitoring and vibration diagnostic systems for helical-bevel drives














