Product Overview
Compact Torque Transmission: The SEW MC3RLSF04 & MC3RLST04 Series
In modern industrial layouts, floor space is a premium commodity. The SEW MC3RLSF04 and MC3RLST04 right-angle bevel gearboxes are specifically engineered to solve the "footprint vs. power" dilemma. By utilizing a high-precision 90-degree transmission, these units allow motors to be mounted parallel to the machinery, eliminating the need for long inline drive trains.
Unlike standard bevel units, the MC series features a monolithic housing that significantly reduces vibration under high-load cycles. Whether you are integrating a new automated line or retrofitting an existing conveyor, the MC3RLSF04 (flange-mounted) and MC3RLST04 (foot-mounted) provide the mechanical rigidity needed for 24/7 continuous operation with minimal thermal expansion.
Product parameters
| Engineering Data | MC3RLSF04 / MC3RLST04 Specifications | Application Notes |
| Gear Design | 3-Stage Helical-Bevel | Optimized for high axial forces |
| Max. Output Torque | Up to 850 Nm | Dependent on service factor ($f_B$) |
| Gear Ratio ($i$) | 5.5 to 110:1 | Fine-stepped for precise speed control |
| Standard Backlash | < 10 arcmin | Suitable for moderate positioning tasks |
| Shaft Diameter | 40mm / 50mm options | Keyway or shrink disc available |
| Housing Material | Grey Cast Iron (GJL-250) | Excellent dampening properties |
| Lubrication | CLP 220 Mineral / Synthetic | Synthetic recommended for >80°C environments |
Industrial Applications
Performance in Motion: Where the MC3 Series Excels
- Precision Logistics & Sorting: The right-angle configuration is ideal for cross-belt sorters and heavy-duty diverters where high-speed start-stop cycles require low-inertia gearing.
- Food & Beverage Bottling: Its compact design allows it to be tucked under stainless steel conveyors, and with optional food-grade lubrication, it meets strict hygiene standards for filling lines.
- Automated Stacking Systems: The high overhung load capacity of the MC3RLST04 ensures reliability in vertical lift platforms and warehouse AS/RS systems.
- Textile Machinery: Provides synchronized torque for weaving and winding machines where constant speed and low vibration are critical for product quality.
Interchangeability & Retrofit Guide
Seamless Retrofitting: Replacing Legacy Units The SEW MC3RLSF04 is often used as a high-efficiency upgrade for older K-series or third-party worm gearboxes. Because of its modular design, we can provide custom adapter flanges to match your existing bolt patterns. If you are switching from a worm gearbox to this bevel unit, expect a 15% to 20% increase in energy efficiency, which can lead to significant cost savings in large-scale plants.
FAQ
Q: What is the main difference between MC3RLSF04 and MC3RLST04?
A: It comes down to the mounting interface. The SF version is flange-mounted, typically used for direct attachment to a machine wall, while the ST version features a foot-mounted design for standard baseplate installations.
Q: Can I run this gearbox with a 60Hz motor if the label says 50Hz?
A: Yes, SEW MC units are generally versatile. However, running at 60Hz increases the input speed, which can raise the operating temperature. We recommend checking the oil level and cooling capacity if you plan to exceed 1800 RPM input.
Q: How do I handle oil changes for vertical installations?
A: Vertical mounting requires a specific oil level and often an expansion tank. For the MC3 series, ensure the breather valve is positioned at the highest point to prevent pressure buildup and seal leakage.
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