SMR Series Reducer: Precision Helical Gear & Modular Combined Transmission Solution
I. Product Overview
Weigao SMR Series Reducers are high-performance precision transmission devices integrated with helical gear technology, tailored for industrial scenarios requiring stable transmission, flexible installation, and wide power adaptation. As a versatile core product in Weigao's transmission lineup, this series addresses the pain points of single installation form, poor combination flexibility, and uneven meshing stability of traditional reducers in general machinery, automation, and metallurgy auxiliary scenarios. Compliant with ISO1328-1997 international transmission standards and certified by ISO 9001 quality management system and IP65 protection level, it integrates precision helical gear structure, modular design, and high-strength cast iron housing. The product features high transmission efficiency, flexible modular combination, low noise operation, and diverse installation forms, capable of stably operating in temperature ranges from -20℃ to +95℃. It is widely applied in conveyor systems, mixing equipment, metallurgy auxiliary machinery, and automated production lines, providing reliable and flexible power support for global general industrial fields.
II. Core Advantages
1. Precision Helical Gear Structure, High Efficiency & Stable Transmission
Adopting computer-optimized precision helical gear design, the reducer realizes smooth power transmission through meshing of high-strength alloy steel helical gears, with each stage transmission efficiency up to 98%. Gears are made of premium high-strength alloy steel, processed by deep carburizing and quenching, followed by precision grinding (partial intermediate gear shaft with gear shaving process), with tooth surface hardness reaching HRC 60-62 and tooth profile conforming to involute modification standards. The helical gear structure increases meshing contact area, reduces impact vibration during operation, and achieves ultra-low noise performance. Equipped with ISO standard precision bearings, the shaft system ensures high coaxiality, with radial load-bearing capacity enhanced by 30% compared with ordinary gear reducers. The transmission ratio is meticulously divided, covering 5:1 to 100:1, and multi-stage combination can extend to wider ranges, fully meeting diverse speed regulation needs of general industrial equipment.
2. Modular Design, Flexible Combination & Wide Adaptation
The SMR series adopts a modular combination system design, with core components such as gear units, housings, and input/output shafts standardized for flexible matching. It supports seamless combination with different power motors and can be equipped with optional accessories such as backstops (for 13:1 and 20:1 ratios), torque arms, and encoders, realizing customized configuration for different application scenarios. The output end is designed with standard metric hollow shaft apertures compatible with ISO standard shaft diameters, facilitating quick assembly without additional adapter parts. The housing is made of high-strength cast iron through precision casting, with integrated reinforcing structures optimized by finite element simulation, ensuring excellent shock absorption and impact resistance. The modular design significantly reduces component types and inventory, shortens delivery cycles, and lowers maintenance and replacement costs for users.
3. Diverse Installation Forms, Strong Environmental Adaptability
The reducer supports multiple installation forms including foot mounting, B5 flange mounting, B4 flange mounting, and shaft-mounted installation, with foot-mounted models equipped with two precision-machined mounting planes for stable fixation. The torque arm accessory facilitates adjustment of spatial position and belt tightness, and additional housing support angles prevent bolt damage caused by over-tightening. It adopts a multi-layer sealing design, with skeleton-type double-lip oil seals and rubber oil seal covers to effectively prevent oil leakage and dust intrusion, ensuring reliable operation in dusty, humid, and oily industrial environments. The housing surface undergoes anti-rust and anti-corrosion treatment, enhancing durability in indoor and outdoor general working conditions. The input shaft is designed with an extended keyway to withstand larger impact loads, fully complying with ISO standard requirements.
4. Optimized Lubrication System, Easy Maintenance & Long Life
The reducer adopts forced oil bath lubrication, equipped with a visual oil level window for convenient daily inspection of oil level status. It uses special extreme pressure gear oil with excellent anti-wear and high-temperature stability, ensuring stable lubrication effect under continuous operation. The oil drain port is equipped with a filter to avoid impurity discharge during oil change, protecting internal components. The optimized lubrication circuit ensures uniform oil supply to all meshing parts, reducing wear and extending service life to over 25000 hours under normal working conditions. The maintenance process is simplified, with standardized accessories and easy-to-disassemble structure, reducing on-site maintenance difficulty and downtime for industrial production lines.
III. Typical Application Fields
- Conveyor Systems: Belt conveyors, chain conveyors in mines and logistics, helical gear structure ensuring stable operation and low noise
- Mixing Equipment: Chemical stirring tanks, concrete mixing station auxiliary devices, modular combination adapting to different power configurations
- Metallurgy Auxiliary Machinery: Steel billet conveying mechanisms, auxiliary lifting devices, high load-bearing capacity withstanding impact loads
- Automated Production Lines: Assembly line transmission mechanisms, packaging equipment, diverse installation forms adapting to spatial layout
- General Machinery: Textile machinery, printing equipment, precise transmission ratio ensuring process accuracy and operational stability
IV. Key Technical Parameters
| Model Specification | SMR Series (Modular Combined Helical Gear Reducer) |
| Power Range | 0.75kW - 37kW (Supporting multi-stage combination for higher power) |
| Transmission Ratio | 5:1 - 100:1 (Multi-stage combination extendable), single-stage efficiency ≥98%, tooth surface hardness HRC 60-62 |
| Operating Noise | ≤58dB (1m distance, full load) |
| Operating Temperature | -20℃ - +95℃ |
| Mounting Type | Foot/B5 flange/B4 flange/shaft-mounted installation, ISO standard hollow shaft output, high-strength cast iron housing |
V. Installation & Maintenance
Select models based on transmission ratio, power demand, and installation form. During installation, use standard torque arms to fix the housing, ensure coaxiality error ≤0.04mm, and adjust bolt tightness within recommended range. Adopt dedicated extreme pressure gear oil, and replace it every 8000-10000 hours of operation. Regularly inspect oil level, sealing performance, and gear meshing status, and clean the housing surface to ensure heat dissipation. The backstop accessory is only applicable to 13:1 and 20:1 ratios; avoid reverse operation for models equipped with backstops, and perform maintenance by professional technicians.
Weigao SMR Series Reducers adhere to the design philosophy of "precision stability, modular flexibility, and universal adaptation", focusing on the core needs of general industrial transmission scenarios. With advantages of precision helical gear transmission, flexible modular combination, and diverse installation forms, it breaks through the limitations of traditional reducers in versatility and adaptability. The product provides cost-effective and reliable transmission solutions for conveyor, mixing, and automation equipment, supported by standardized modular parts and professional after-sales services. Compliant with international transmission standards, it is committed to becoming a trusted partner in the global general industrial transmission field.
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