Product Overview
The SEW R97-DRN132M4 represents the heavy-duty segment of the R-series helical range. Engineered for high-torque transmission and exceptional mechanical resilience, this unit pairs the massive R97 gearbox with a 7.5kW (10 HP) DRN132M4 IE3 motor. With a maximum torque capacity of 3000 Nm, the R97 is the definitive choice for large-scale industrial operations where high overhung loads and continuous peak performance are standard requirements.
Detailed Technical Specifications
| Feature | Technical Specification | Engineering Significance |
| Nominal Output Torque | Up to 3000 Nm | Handles extreme shock loads and massive inertia |
| Output Shaft Dia. | 60 mm (ISO k6) | Oversized shaft to withstand high radial forces |
| Energy Efficiency | IE3 Premium Efficiency | High-wattage savings for large-scale utility reduction |
| Protection Class | IP55 (Standard) / IP66 | Optimized for heavy outdoor or washdown duty |
| Gearbox Housing | Reinforced Grey Cast Iron | Superior vibration damping for quiet operation |
| Weight | Approx. 165 - 210 kg | Significant mass for industrial-grade stability |
Technical Selection & Functional Variants
| Model Variant | Power (kW) | Mounting Type | Key Features | Best For |
| R97 DRN132M4 | 7.5 kW | Foot-mounted | 60mm Solid Shaft | Primary heavy conveyor drives |
| RF97 DRN132M4 | 7.5 kW | B5 Flange | 350mm or 450mm Flange | Large agitators & mixers |
| R97 DRN132M4/BE11 | 7.5 kW | Foot-mounted | Integrated BE11 Brake | Heavy lifting & safety ramps |
| R97 DRN132M4/V | 7.5 kW | Foot-mounted | Forced Cooling Fan | Continuous low-speed VFD duty |
| RF97 DRN132M4/TF | 7.5 kW | B5 Flange | PTC Thermistors | High-load thermal protection |
Modular Options & Accessories (System Enhancement)
Given the 7.5kW power density, the R97 can be equipped with advanced monitoring and control accessories to ensure 100% uptime.
1. High-Torque Braking (BE Series)
The BE11 or BE20 spring-applied brakes provide the critical holding torque required for 7.5kW systems.
Note: For vertical applications, we recommend adding the manual brake release to allow for safe load lowering during power outages.
2. Encoder & Feedback Solutions
For high-precision automation, the DRN132M4 can be fitted with:
EG7S / EK7S Encoders: High-resolution signals for closed-loop motion control.
EI7C Encoders: Cost-effective speed monitoring integrated within the motor housing.
3. Condition Monitoring for Large Units
DUO (Diagnostic Unit Oil): Monitors oil quality in real-time. Since the R97 carries a large oil volume, the DUO unit ensures you maximize oil life while protecting the gears.
DUV (Diagnostic Unit Vibration): Crucial for high-power units to detect bearing wear early, preventing catastrophic failure.
Built for Heavy-Duty Infrastructure
The R97 series is the professional choice for large-scale industrial infrastructure.
- Mining & Bulk Materials: Used in Heavy-duty Belt Feeders, Large Bucket Elevators, and Vibrating Screens. The 60mm shaft is specifically designed to handle the high chain tension and shock loads of ore processing.
- Water & Wastewater: Ideal for Large Surface Aerators, Sludge Centrifuges, and Grit Collectors where 24/7 reliability is mandatory.
- Chemical & Processing: Drives for Large Industrial Mixers and Pressure Agitators requiring high torque and chemical-resistant seals.
- Heavy Logistics: Powering Unit Load Conveyors for 2-ton+ pallets and Automated Storage and Retrieval Systems (ASRS).
FAQ
Q: Why should I choose the R97 over the R87 for 7.5kW?
A: While the R87 can handle 7.5kW, its maximum torque is 1550 Nm. The R97 nearly doubles that to 3000 Nm. If your application involves high starting torque or heavy shock loads (like a primary crusher or inclined hoist), the R97 provides the necessary Service Factor (fb) to ensure the gears don't fail under stress.
Q: What are the lubrication requirements for a unit this size?
A: The R97 requires a significant oil fill (especially in M4 position). We recommend Synthetic CLP PG oil for 7.5kW units to lower operating temperatures and extend maintenance intervals from 10,000 to 25,000 operating hours.
Q: Can the R97 be supplied with a B14 flange?
A: The B14 (RZ series) is less common in this size. Most 7.5kW applications use the R97 (Foot) or RF97 (B5 Flange) due to the massive torque being transmitted; the B5 flange (350mm/450mm) provides the necessary bolt surface area for safety.
The Professional Standard for 7.5kW Drives
The SEW R97-DRN132M4 IE3 Helical Gearmotor is a powerhouse of reliability. With its 3000 Nm torque capacity, 60mm shaft, and advanced modular options, it provides the industrial-grade performance needed for the world's most demanding production and processing lines.
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