Worm Gear Reducer
Years Engineering
Countries Served
Units Delivered
%
Efficiency Rating
what is a worm gear reducer?
Worm gear reducers provide compact power transmission with high reduction ratios, making them essential in precision machinery.
In Korea’s dynamic market, these devices support automation growth, projected at 8.2% CAGR through 2032 according to Future Market Reports.
Three Key Lights
Common materials include 20CrMnTi steel for worms, ensuring hardness of HRC 58-62 per DIN specifications.
Applications span over 80 sectors, with Korea leading in semiconductor equipment usage at 25% market share per recent FMI reports.
Replacement compatibility with brands like SEW and Nidec, offering cost savings of up to 35% without performance loss.
Worm Reducer Gearbox Series
RV Series Worm Gearbox
Compact aluminum housing worm gear speed reducer designed for general industrial applications. Features precision-ground worm and wheel sets with optimized tooth geometry for smooth operation.
Technical Specifications:
- •Ratio range: 5:1 to 100:1
- •Torque capacity: 18 – 1,800 Nm
- •Housing: Die-cast aluminum alloy
- •Efficiency: up to 94%
Conveyors, Mixers, Packaging Machinery
NMRV Worm Drive Gearbox
European standard worm drive gearbox with modular design and universal mounting options. Features hardened steel worm shaft and bronze worm wheel for extended service life.
Key Features:
- •Modular construction design
- •Multiple mounting positions
- •High-grade synthetic lubricant
- •Maintenance-free operation
Food Processing, Material Handling, Automation
PC Series Worm Gear Reducer
Heavy-duty cast iron housing worm gear reducer engineered for continuous operation in demanding industrial environments. Features robust construction and enhanced thermal management.
Advanced Capabilities:
- •Cast iron housing construction
- •Enhanced heat dissipation
- •High torque transmission
- •Extended service intervals
Mining Equipment, Steel Mills, Heavy Manufacturing
Conveyor Systems
Mining Industry
Agricultural Cultivation
Medical Industry
Why Choose Ever-Power Worm Gearboxes?
High Self-Locking Ability
Our worm drive gearbox designs offer inherent self-locking capabilities, particularly in high-ratio configurations. This eliminates the need for external braking systems in lift and hoist applications, enhancing safety and reducing cost.
Global Interchangeability
Designed with standard IEC flange inputs and metric output shafts. Ever-Power units serve as a direct, high-performance replacement of Motovario NMRV series and replacement of Bonfiglioli W series, ensuring seamless integration into existing machinery without re-engineering.
Thermal Efficiency
Enhanced housing fin design maximizes surface area for heat dissipation. We utilize premium synthetic lubricants to extend the thermal capacity of the worm reducer, preventing overheating during continuous duty cycles.
Frequently Asked Questions
What is the efficiency of a worm gear reducer?
Efficiency depends on the ratio and speed. Low ratios (e.g., 5:1, 7.5:1) can achieve 85-90% efficiency. However, high ratios (e.g., 80:1, 100:1) involve more sliding friction, potentially lowering efficiency to 50-60%. For applications requiring high efficiency at high ratios, consider Ever-Power’s helical-worm hybrid units.
How do I select the right worm reducer for my motor?
Selection requires three key data points: Input Power (HP/kW), Desired Output Speed (RPM), and Service Factor. Determine the required torque for your load and multiply by the service factor (1.2 for moderate duty, 1.5+ for heavy shock loads). Match these to the reducer’s mechanical rating tables.
Can Ever-Power reducers replace SITI or Motovario units?
Yes. Our NMRV and VF series are dimensionally interchangeable. We offer a direct replacement of Motovario and replacement of SITI gearboxes with matching shaft centers, flange dimensions, and ratios, often at a more competitive price point with faster lead times.
