S Series Helical-Worm Gear Reducer with 94% Efficiency for Conveyors and Lifting Equipment
Product Description
A general-purpose gear reducer (also known as a gear reduction unit or speed reducer) is a mechanical device designed to reduce the rotational speed of a motor while simultaneously increasing output torque. It plays a critical role in industrial machinery, automation systems, and power transmission applications, ensuring optimal performance by matching motor output to the operational requirements of driven equipment.
Key Functions
Speed Reduction: Converts high-speed, low-torque input from a motor into low-speed, high-torque output.
Torque Amplification: Enhances the torque capacity to handle heavy loads.
Motion Control: Provides precise speed regulation and directional changes (e.g., reversing rotation).
Power Transmission: Efficiently transfers mechanical energy between motor and machinery.
Common Types of Gear Reducers
Helical Gear Reducers
Features helical gears with angled teeth for smooth, quiet operation.
High efficiency and load capacity; widely used in heavy industries.
Worm Gear Reducers
Utilizes a worm (screw) and worm wheel for compact design and high reduction ratios.
Self-locking capability; ideal for low-speed, high-torque applications.
Planetary Gear Reducers
Employs a central sun gear, planetary gears, and a ring gear for high torque density.
Compact, lightweight, and suitable for precision applications (e.g., robotics).
Bevel Gear Reducers
Uses bevel gears to transmit power between intersecting shafts (typically 90°).
Common in automotive differentials and conveyor systems.
Cycloidal Gear Reducers
Relies on cycloidal disc motion for high shock load resistance and precision.
Used in robotics, medical equipment, and aerospace.
Core Components
Housing: Protects internal components and provides structural support (cast iron or aluminum).
Gears: Precision-engineered gears (helical, spur, worm, etc.) transmit motion and torque.
Input/Output Shafts: Connect to the motor and driven equipment.
Bearings: Reduce friction and support rotational movement.
Seals: Prevent lubricant leakage and contamination.
Lubrication System: Ensures smooth operation and longevity (oil or grease).
Applications
Industrial Machinery: Conveyors, mixers, crushers, pumps.
Automation & Robotics: Precision motion control in robotic arms.
Renewable Energy: Wind turbine pitch control systems.
Transportation: Automotive drivetrains, escalators, cranes.
Agriculture: Harvesters, irrigation systems.
Advantages
High Efficiency: Minimizes energy loss (up to 95-98% for helical units).
Durability: Robust construction for harsh environments.
Versatility: Compatible with various motors (AC/DC, servo, hydraulic).
Customization: Modular designs allow tailored ratios, mounting options, and sizes.
Selection Considerations
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Load Requirements: Torque, speed, and duty cycle.
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Reduction Ratio: Ratio of input to output speed.
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Mounting Configuration: Foot-mounted, flange-mounted, or shaft-mounted.
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Environmental Factors: Temperature, dust, moisture, and vibration.
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Maintenance Needs: Lubrication intervals and accessibility.
Conclusion
General-purpose gear reducers are indispensable in optimizing mechanical systems across industries. By selecting the appropriate type and configuration, users can achieve reliable performance, extended equipment lifespan, and energy savings. Advances in materials and manufacturing (e.g., hardened alloys, 3D printing) continue to enhance their efficiency and adaptability for future applications.
Type |
Best For |
Key Feature |
Spur Gear |
Basic machinery |
Simple & affordable |
Helical Gear |
Industrial machinery |
Quiet & efficient |
Bevel Gear |
Direction-changing drives |
90° shaft angle |
Worm Gear |
Compact high reduction |
Self-locking |
Planetary Gear |
High torque in small space |
High load capacity |
Cycloidal Gear |
Heavy-duty robotics |
Shock load tolerance |
Harmonic Drive |
Precision control |
Zero backlash |
Hypoid Gear |
Automotive & heavy-duty |
Quiet & strong |
Product Parameters



Company Profile
Shandong NDS Machinery Equipment Co., Ltd. is a comprehensive machinery and equipment manufacturing enterprise integrating R&D, production, sales and service. The headquarters is located in Boshan District, Zibo City, Shandong Province, with branches in Henan and Shenyang. The general manager has been working in the field of machinery manufacturing for 15 years and has rich industry experience. He personally leads the team from production optimization to market expansion, accurately grasps customer needs, and continuously promotes product technology upgrades.
The company has modern production plants and advanced production equipment, focusing on the field of mechanical equipment manufacturing. The main products cover various standard pulleys such as national standards, European standards, American standards, and Japanese standards, couplings, synchronous pulleys, gears, racks, sprockets, expansion sleeves, bearing seats, worm gears and other transmission accessories, as well as mechanical electrical equipment and mechanical parts. These products are widely used in pumps, fans, plastic machinery, automobile manufacturing, CNC lathes, metallurgy, mining machinery, agricultural machinery, electricity, chemicals, wind power, petroleum and other industries.
Since its establishment, the company has always adhered to a customer-centric approach to meet customer needs, and has established long-term and stable business partnerships with many manufacturers. The company warmly welcomes friends at home and abroad to negotiate business and achieve mutually beneficial cooperation.
About us
1. Technology Upgrades and Customization Services
Our company is customer-centric, driving product technology innovation and providing high-quality customized solutions to help clients improve production efficiency and reduce operational costs.
2. Global Product Adaptability
Our company's main products (such as pulleys, couplings, gears, bearing housings, etc.) are widely applied in industries such as automotive manufacturing, CNC machine tools, metallurgy, mining machinery, power, chemicals, wind power, and petroleum. These products are highly versatile and adaptable, capable of meeting the diverse needs of global customers.
3. Rich Industry Experience and Technical Expertise
Our company's team has 15 years of experience in the mechanical manufacturing field and is capable of quickly providing customized solutions.
4. Comprehensive Supply Chain and Delivery Capabilities
Our company has a complete supply chain system and production capacity, ensuring the timely delivery of large orders while also addressing small-batch, multi-variety customization needs, meeting the different purchasing models of global clients.
5. International Service Team
Our company has a professional foreign trade service team, well-versed in international trade processes and regulations.
6.Brand Reputation and Customer Feedback
With years of cultivating a strong reputation and successful cases in the domestic market, the company's products have gained widespread recognition, laying a solid brand foundation for expanding into international markets.

Packaging & Shipping:
All the products can be packed in cartons,or,you can choose the pallet packing.
MADE IN CHINA can be pressed on wooden cases. Land,air,sea transportation are available. UPS,DHL,TNT,
FedEx and EMS are all supported.
FAQs
1. Do you provide samples? Is it free or extra?
Yes, we provide samples free of charge, though the cost of freight is not included.
2. Do you provide OEM order service?
Yes, we provide ODM&OEM services to customers around the world, and we can customize different brands and different sizes of packaging boxes according to customers' requirements.
3.Are you a manufacturer or a trader?
We specialized in mechanical parts manufacturing for 15 years.
4. What is your leading time?
Standard parts are expected to be shipped in about 10 days. Non-standard customised parts are expected to be shipped in about 30 days. The delivery time may vary depending on the specific products.
5. What are your packing conditions?
We use standardized export packaging.