SC series helical-worm geared motor

Main Parameter: 
Output speed: 0.1~120rpm 
Output torque: up to 10200Nm 
Motor power: 0.18~37kw 
Input form: directly connected with motor, flange input or shaft input. 
Installation Form: Horizontal, Vertical, 
horizontal type bottom threaded hole, case end face threaded hole installation, 
small flange installation, torque arm installation,
case end face male half coupling installation

Product features:

1. SC series helical-worm gearmotor is the combination transmission structure of helical gears and worm wheels,right angle shaft output and steady running. 
2. Little vibration and low noise, with large transmission ratio,the transmission efficiency is lower than helical gearmotor. 
3. The material of gears is 20CrMnTi alloy steel and the hardness can reach to HRC58°~ 62 after tempering , cementiting , quenching etc. heat treatment. All the gears are processed by accurate grinding and the precision can reach to grade 6~5°. 
4. The products have been mainly used in petrochemical machinery, mine and construction machinery, metallurgy, printing and packaging machinery, etc. 

Fast selection:

Remark: the weight without oil and motor, shaft and flange input add 10%. 


Right-Angle Transmission Structure With Stability
The SC series adopts a combined transmission structure of helical gears and worm wheels, producing a right-angle shaft output with stable running behavior. This configuration provides smooth torque transfer and reduces vibration under load, which is particularly useful in continuous industrial duty. The helical-worm combination allows larger transmission ratios than standard helical gearmotors, providing design flexibility in speed reduction. Although efficiency is lower than pure helical types, this design balances compact size, high torque, and controlled output. Such characteristics make it reliable for heavy machinery drives requiring gearbox reducer performance and suitable for integration into systems provided by established industrial gearbox manufacturers.

Durable Gear Materials And Heat Treatment Process
The gears are manufactured from 20CrMnTi alloy steel and undergo a sequence of tempering, carburizing, and quenching processes. This results in surface hardness reaching HRC58–62 while maintaining internal strength. Precision grinding brings gear accuracy to grade 6–5, reducing backlash and ensuring smooth meshing. These treatments extend service life under heavy duty cycles and reduce the risk of premature wear. By combining hardened surfaces with precise machining, the SC series maintains efficiency and stability over long-term operation. These manufacturing standards align with global expectations of gear reducer design and distinguish the SC as a reliable option for end users or OEMs sourcing from trusted gear reducers manufacturers.

Versatile Installation And Broad Model Range
The SC series supports multiple installation methods including horizontal, vertical, torque arm, small flange, and threaded hole mounting. Input options include direct motor coupling, flange input, or shaft input, increasing compatibility with varied systems. Models range from SC37 through SC127, covering shaft diameters, torque capacities, and motor power from 0.18 to 37 kW. Output speed spans from 0.1 rpm up to 120 rpm, with torque capacity up to 10200 Nm. Intermediate models such as SC67, SC87, and SC97 provide scalability for medium-duty and heavy-duty needs. This flexibility ensures easy adoption across applications requiring compact gear reduction box units or higher-capacity reducer gearbox configurations.


 
Product Advantages

Combined Helical And Worm Design For Higher Ratios
By merging helical gears with worm gearing, the SC series provides larger transmission ratios in a compact structure, which many single-stage reducers cannot achieve. This makes the series valuable for applications demanding significant speed reduction without expanding gearbox size. The right-angle configuration allows system designers to optimize layouts where straight-through shafts are not practical. These features offer efficiency and load handling capacity superior to traditional worm gear box units, ensuring its relevance in complex drive assemblies.

Heat Treated Alloy Gears Delivering Long Service Life
The carburized and quenched 20CrMnTi alloy gears maintain both surface hardness and inner toughness, supporting continuous duty cycles under heavy torque. The precise grinding process ensures quieter operation, reducing vibration across the drive system. With accuracy reaching grade 5, misalignment risks are minimized, leading to stable operation. For buyers selecting gearbox reducer equipment from professional industrial gearbox manufacturers, these material and processing advantages contribute to lower maintenance frequency and extended lifetime performance.

Flexible Mounting Methods Supporting Engineering Needs
SC series gearmotors accommodate installation flexibility by offering horizontal, vertical, and torque arm layouts, along with flange or threaded hole mounting. This adaptability ensures compatibility across diverse mechanical environments, from compact equipment to large industrial machinery. Direct motor input, shaft input, and flange input options reduce the need for additional adapters. Such flexibility simplifies integration into systems traditionally dependent on gear box motor drives, while improving engineering efficiency and reducing commissioning time.


 
Use Scenarios

Petrochemical And Metallurgy Equipment
The SC series is applied in petrochemical machinery and metallurgy plants where compact, durable gear units are required to deliver continuous operation. The hardened gears and low noise operation support stability under harsh industrial conditions. By replacing older worm drive gearbox units, the SC series increases efficiency and reduces downtime in these high-load environments.

Mining And Construction Machinery Applications
Heavy mining and construction equipment often require right-angle drives with high torque density. The SC series provides torque up to 10200 Nm with power inputs from 0.18 to 37 kW, meeting these demands. Shaft and flange input options simplify installation in mining conveyors, crushers, or hoists. These qualities make the series an effective alternative to bulkier worm gear reducer units in heavy-duty fields.

Printing And Packaging Machinery Integration
Industries requiring precise but low-noise motion, such as printing and packaging, benefit from the SC’s low vibration design. The combination of helical and worm gearing enables quiet, stable performance even under continuous duty. Compact dimensions and flexible installation methods make it straightforward to integrate into machines typically driven by electric motor gearbox assemblies. The result is smoother operation and longer service intervals compared to older transmission systems.


 
About Us

Founded in 1988, SLM is a professional manufacturer specializing in gear motors, gearboxes, and speed reducers. With over three decades of development, the company has become a senior member of the China Speed Reducer Industry Association and the China Committee of Gear. Operating under ISO9001:2008 certification, SLM manages strict production standards with modern equipment such as gear grinding machines, CNC machining centers, and advanced gear inspection systems. Its annual output reaches approximately 100,000 units, exported to markets in Europe, Southeast Asia, and the Americas.

SLM offers a wide portfolio including helical gearmotors, worm gearboxes, planetary gear reducers, cycloidal drives, variators, and customized modular gear systems. These products serve industries such as metallurgy, mining, chemical processing, packaging, energy, and cement. As one of the recognized planetary gearbox manufacturers and gear reducers manufacturers, SLM emphasizes R&D, production, and testing capabilities to provide durable, application-specific drive solutions for global industrial partners.


 
FAQ

What torque range can the SC series helical worm geared motor provide?
The SC series supports up to 10200 Nm depending on model size, delivering reliable torque performance for heavy-duty gear reducer applications.

Which installation options are supported by the SC series gearbox?
Installation can be horizontal or vertical, with torque arm, flange, threaded hole, and small flange options available, making it suitable for complex reducer gearbox layouts.

What material and processing are used for the gears in the SC series?
Gears are made from 20CrMnTi alloy steel with carburizing, quenching, and precision grinding to grade 6–5, ensuring long service life in gearbox reducer systems.

Can the SC series gearbox be directly connected to motors?
Yes, it supports direct motor input, as well as shaft input and flange input, enabling straightforward integration with electric motor gearbox assemblies.

In which industries is the SC series primarily applied?
The series is used in petrochemical, mining, construction, metallurgy, and printing and packaging industries, reflecting its versatility among industrial gearbox manufacturers.


Contact SLM today to configure your SC helical worm geared motor and match torque, speed, and installation for your industrial system!