Product Overview
SEW RZ57 DRN90L4: Space-Saving Parallel Shaft Helical Gearmotor for High-Torque Loads
The SEW RZ57-DRN90L4 is a specialized parallel-shaft helical gearmotor designed for applications where installation depth is limited. Unlike standard inline reducers, the RZ57's offset design allows it to be mounted flush against machinery, making it an essential component for compact conveyor systems and agitators.
Equipped with the 1.5 kW DRN90L4 IE3 premium efficiency motor, this unit provides a reliable 90 Nm of torque. Its robust helical gearing ensures high efficiency even at high reduction ratios, minimizing energy loss compared to worm-gear alternatives. Whether you are upgrading an existing production line or designing a new OEM machine, the RZ57 offers the perfect balance of slim profile and heavy-duty performance.
Product parameters
| Specification | Details |
|---|---|
| Model | RZ57 DRN90L4 |
| Gear Type | Parallel shaft helical gear |
| Motor Type | DRN90L4, three-phase, high-efficiency |
| Rated Power | 1.5 kW |
| Number of Poles | 4 |
| Rated Torque | 90 Nm |
| Gear Ratios (Standard) | 10:1, 15:1, 20:1 |
| Mounting Options | Foot-mounted, flange-mounted, horizontal or vertical installation |
| Housing Material | Cast iron with corrosion-resistant coating |
| Lubrication | Factory-filled with long-life synthetic oil |
| Operational Temperature | -10°C to 40°C |
| Protection Class | IP55 |
| Weight | Approx. 32 kg |
| Applications | Conveyors, packaging machines, automated assembly lines, material handling equipment, OEM machinery |
Engineering Advantages
Why the RZ57 DRN90L4 Excels in Industrial Applications:
- High Overhung Load Capacity: The RZ57 is engineered with reinforced bearings, allowing it to handle significantly higher radial loads on the output shaft than smaller units. This is critical for chain-driven or belt-driven systems.
- Quiet & Efficient Operation: Utilizing ground helical gears, the RZ series reduces acoustic noise levels below 70dB(A), making it suitable for indoor packaging environments and assembly halls.
- Modular Mounting: The parallel shaft design supports foot-mounted, flange-mounted, or even torque-arm mounting for shaft-mounted versions, providing maximum flexibility for mechanical engineers.
- Global Export Compliance: The DRN90L4 motor meets CE, UL, and CSA standards, ensuring your equipment can be exported and maintained globally without compatibility issues.
FAQ
Q: Q1: Can the RZ57 be mounted vertically in an agitator application?
A: A: Yes. The RZ57 can be configured for M2 or M4 vertical mounting positions. However, we recommend specifying this at the time of order so we can install the correct oil level and high-quality seals to prevent leakage.
Q: Q2: What is the difference between RZ and RX series SEW gearboxes?
A: A: The RZ series is a parallel shaft helical unit, whereas the RX series is a single-stage inline helical unit. The RZ57 offers higher reduction ratios and a more compact lateral footprint, making it better for side-mounted drive requirements.
Q: Q3: Is the DRN90L4 motor suitable for 60Hz power grids in North America?
A: A: Absolutely. The DRN90L4 is a global motor. When running on 60Hz at 460V, the output speed will increase by approximately 20%, while maintaining its IE3 energy efficiency rating.
Q: Q4: How often does the gear oil need to be changed in a RZ57 unit?
A: A: For standard indoor operations, mineral oil should be changed every 10,000 operating hours. If using synthetic lubricants (CLP PG), this interval can be extended to 20,000 hours, depending on the ambient temperature and load conditions.
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