Product Introduction
The SEW-EURODRIVE S67-DRN100LS4 is a heavy-duty right-angle drive solution designed to bridge the gap between standard worm units and high-performance bevel gears. By utilizing a helical-worm design, the S67 achieves a much higher torque-to-size ratio than smaller frames, making it an ideal choice for 2.2kW power requirements. The integration of the DRN100LS4 IE3 motor ensures global compliance with energy efficiency regulations, providing a sustainable power source that reduces heat loss and operational costs. This gearmotor is specifically built for environments where high shock loads and continuous operation are the norm.
Technical Specifications
| Specification | Technical Details |
| Gearmotor Model | S67 DRN100LS4 |
| Output Power | 2.2 kW (3.0 HP) |
| Efficiency Standard | IE3 Premium Efficiency |
| Standard Output Shaft | 45 mm (Solid Shaft) |
| Service Factor (fB) | Optimized for industrial duty |
| Ambient Temperature | -20°C to +40°C (Standard) |
| Motor Pole Count | 4-Pole (1500 RPM at 50Hz / 1800 RPM at 60Hz) |
| Housing Material | High-strength Gray Cast Iron |
Unique Performance Characteristics of the S67
High Overhung Load Capacity: The S67 features an upgraded bearing set compared to smaller models, allowing it to withstand significant radial forces often found in heavy chain-drive or mixer applications.
Optimized Pressure Angle: The gear teeth geometry in the S67 is precision-engineered to reduce the axial thrust on the motor bearings, resulting in a longer mechanical lifespan for the DRN motor assembly.
Advanced Surface Finish: The worm shaft is induction-hardened and ground to a mirror finish, which maximizes the oil film thickness and minimizes the "break-in" wear period common in right-angle drives.
Selection & Sizing Guide
When configuring the S67-DRN100LS4, it is critical to evaluate the Service Factor (fB). For applications involving frequent starts/stops or heavy shock loads-such as reciprocating conveyors-a service factor of 1.5 or higher is recommended. Additionally, because the S67 provides a maximum torque of 1030 Nm, users should ensure the driven machine's shaft can handle the peak torque delivery, especially when using the hollow shaft (SA67) or shrink disk (SH67) variants which offer high-precision, zero-backlash coupling.
Related Models & Configuration Matrix
| Full Unit Model | Mounting Style | Motor Specs | Gear Ratio (i) | Output Speed (RPM) |
| SA67 DRN100L4 | Hollow Shaft | 3.0 kW IE3 | 54.00 | 27 |
| SF67 DRN100LS4/TH | B5 Flange + Thermostat | 2.2 kW IE3 | 32.48 | 45 |
| SAF67 DRN90L4 | Flange/Hollow | 1.5 kW IE3 | 110.00 | 13 |
| S67 DR2S100LS4 | Foot Mounted | 2.2 kW IE2 | 19.50 | 74 |
Primary Industry Applications
Heavy-Duty Mixing: Ideal for chemical agitators and food mixers where right-angle space is limited but high torque is non-negotiable.
Lumber & Wood Processing: Perfect for log handling conveyors and deck saws that face high impact and dusty environments.
Recycling Plants: Used in shredder feeders and sorting belts due to its robust damping capabilities.
FAQ
1. Is the S67-DRN100LS4 suitable for outdoor use?
Yes, with the appropriate "OS" (Outdoor Service) package. This includes enhanced IP66 protection, corrosion-resistant internal parts, and a canopy for the motor fan to prevent moisture ingress.
2. Can I replace a pure worm gearbox from another brand with the S67?
Generally, yes. The S67 provides much higher efficiency, meaning you might be able to use a smaller motor to achieve the same output torque. However, you should check the center distance and mounting dimensions as they will differ from standard worm units.
3. What is the benefit of the DRN100LS4 IE3 motor?
The IE3 rating means the motor operates with lower internal heat, which is particularly beneficial for worm gearboxes. Cooler motor operation prevents the gearbox oil from thinning out prematurely, ensuring better lubrication for the worm gear set.
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