B series cycloidal pin wheel decelerators(B series two-stage cycloidal pinwheel reducer(E)，B series first stage cycloidal pinwheel reducer)

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The B series cycloidal pin - wheel decelerators from Weigao, including the B series two - stage cycloidal pinwheel reducer (E) and the B series first - stage cycloidal pinwheel reducer, are high - quality speed - reduction devices.

These reducers utilize the cycloidal pin - wheel transmission principle. The cycloidal gears engage with the pin wheels in a unique way, resulting in smooth operation, low noise, and high shock - resistance. The two - stage version (E) offers a greater reduction ratio, allowing it to effectively slow down high - speed input to a much lower output speed in a single unit, while the first - stage reducer is well - suited for applications with less demanding speed - reduction requirements.

Made of robust materials, they are highly durable and can withstand heavy loads and harsh working conditions. Their compact structure saves installation space. Widely used in industries like metallurgy, mining, and chemical engineering, these reducers play a crucial role in ensuring precise speed control and reliable power transmission for various mechanical systems.

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BX series

Description

B Series Cycloidal Pin Wheel Decelerators: Eccentric Drive & Modular Mounting Solution

I. Product Overview

Weigao B Series Cycloidal Pin Wheel Decelerators, including B Series First Stage Cycloidal Pinwheel Reducer and B Series Two-Stage Cycloidal Pinwheel Reducer (E Type), are high-efficiency universal transmission devices integrating 180° offset eccentric sleeve drive and needle tooth sleeve rolling friction technology. Tailored for multi-scenario industrial applications such as metallurgy equipment, chemical conveyors, and textile machinery, this series overcomes the shortcomings of traditional reducers such as single installation mode, high sliding friction, and limited speed ratio range. Compliant with GB/T 10855-2018 and ISO 1328 standards, with IP55/IP65 optional protection, it features high-carbon alloy steel cycloidal gears, integral cast iron housing, and adaptive lubrication system. Boasting advantages of flexible mounting, high transmission efficiency, low noise, and long service life, it operates stably at -15℃ to +100℃, serving as a core power component for general industrial equipment worldwide.

II. Core Advantages

1. Offset Eccentric Sleeve Drive, Efficient Power Transmission

Adopting 180° offset double eccentric sleeve drive design, the B series realizes smooth compound motion (revolution + rotation) of cycloidal gears, minimizing vibration during operation. Gears are crafted from 20CrMnTi high-carbon alloy steel, undergoing carburizing quenching, precision grinding, and surface polishing treatment, with tooth surface hardness up to HRC 58-62 and roughness ≤Ra 0.045μm. The first-stage model adopts single cycloidal gear meshing with needle tooth sleeves, while the two-stage E type adds a secondary transmission unit, achieving a maximum transmission ratio of 1:5133. Detailed parameters: first-stage transmission efficiency up to 94%, two-stage efficiency 88%-92%, backlash controlled within ≤12arcmin (precision grade optional ≤6arcmin). The rolling friction of needle tooth sleeves reduces friction coefficient to 0.018, and multi-tooth meshing (simultaneous contact ratio ≥35%) ensures uniform load distribution, enabling it to withstand 4 times rated load instantaneous impact.

2. Modular Mounting Design, Multi-Scenario Adaptation

The series features modular mounting design with multiple assembly modes to meet diverse installation needs. The first-stage model covers transmission ratio 9:1-87:1, power 0.37kW-55kW, and rated torque 150Nm-12000Nm, suitable for medium-speed general industrial scenarios. The two-stage E type extends ratio to 121:1-5133:1, power 0.55kW-75kW, and rated torque 300Nm-20000Nm, for ultra-low-speed heavy-load applications. It supports foot-mounted (BW), flange-mounted (BL), and motor direct-connected (BWD/BLD) modes, with input/output shafts coaxial to reduce installation space by 35% compared with non-coaxial reducers. The integral cast iron housing with optimized rib distribution enhances torsional rigidity by 20%, and modular output shaft design supports both solid and hollow configurations for flexible connection.

3. Enhanced Sealing Protection, Harsh Environment Adaptation

Adaptive protection and low-noise design adapt to complex industrial environments. Basic models adopt IP55 protection (double-lip oil seal + labyrinth structure) for general workshops, while enhanced models upgrade to IP65 with stainless steel dust cover to resist dust and light sewage intrusion. The needle tooth sleeves are made of wear-resistant alloy steel, extending meshing service life by 2.5 times compared with bare needle teeth. The optimized cycloidal tooth profile and balanced eccentric drive minimize vibration, operating noise ≤58dB at 1m, meeting industrial noise standards. Low-temperature resistant lubrication ensures stable operation at -15℃ to +100℃, and the overall service life reaches over 50000 hours under normal working conditions, reducing equipment replacement costs.

4. Adaptive Lubrication System, Convenient Maintenance

The lubrication system adopts scenario-adaptive configuration: small-power models use 2# lithium-based grease for maintenance-free operation within 12000 hours; medium and large-power models adopt 70# extreme pressure gear oil with oil bath lubrication, equipped with oil sight glass and quick-drain plug for easy maintenance. The first oil change is recommended after 100 hours of initial operation, and subsequent oil changes every 6 months under 8-hour工作制. The modular structure allows quick disassembly of cycloidal gears and bearings without professional tools, reducing maintenance time by 35%. Standardized accessories ensure consistent transmission precision after overhaul, maintaining stable equipment operation.

III. Typical Application Fields

Metallurgy Industry: Steel mill roller tables, ore screening equipment, first-stage models with high efficiency adapting to continuous operation
Chemical Industry: Corrosive liquid conveyors, reaction kettle agitators, IP65 protection and corrosion-resistant sealing adapting to chemical environments
Textile Machinery: Dyeing machine main drives, spinning frame transmission systems, low noise and stable operation ensuring product quality
Construction Machinery: Small hoisting equipment, concrete mixers, modular mounting adapting to narrow installation spaces
Agricultural Machinery: Grain conveyors, irrigation pumps, reliable lubrication and compact structure adapting to outdoor work

IV. Key Technical Parameters

Model Type	Transmission Ratio Range	Rated Torque	Lubrication Mode	Protection Grade
B Series First Stage	9:1-87:1	150Nm-12000Nm	Grease/Oil Bath	IP55 (Optional IP65)
B Series Two-Stage (E)	121:1-5133:1	300Nm-20000Nm	Oil Bath	IP55 (Optional IP65)

V. Installation & Maintenance

Select models based on transmission ratio, load type, and installation mode (refer to the specification table). Ensure coaxiality error ≤0.02mm during installation, fasten bolts with specified torque (50-110N·m for first-stage, 90-170N·m for two-stage E type) in diagonal sequence. Horizontal installation tilt angle should not exceed 15° to ensure sufficient lubrication. Grease-lubricated models require grease replenishment every 12000 hours; oil-bath models use 70# extreme pressure gear oil, with oil level maintained at the middle of the sight glass. Regularly inspect sealing performance and meshing wear, avoid overload operation exceeding 4 times rated torque, and entrust complex maintenance to professional technicians.

Weigao B Series Cycloidal Pin Wheel Decelerators adhere to the philosophy of "flexible adaptation, efficient transmission, and convenient maintenance". Its offset eccentric sleeve drive and modular mounting design break through traditional reducers' installation and efficiency limitations, ensuring reliable operation in multi-scenario industrial environments. Backed by strict quality control and professional after-sales service, it provides cost-effective transmission solutions for metallurgy, chemical, and textile industries, establishing itself as a trusted global partner in universal industrial cycloidal transmission.

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2.2）WGT motor Product Catalog （Download in China）

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X series cycloidal pin wheel decelerators(X series two-stage cycloidal pinwheel reducer(E),X series first stage cycloidal pinwheel reducer)

The X series cycloidal pin - wheel decelerators by Weigao, encompassing both the two - stage cycloidal pinwheel reducer (E) and the first - stage cycloidal pinwheel reducer, are advanced speed - reduction solutions. These reducers employ a cycloidal pin - wheel mechanism, which offers unique advantages. The cycloidal motion ensures smooth and stable operation, with minimal vibration and noise. The two - stage version provides a higher reduction ratio, enabling it to handle more significant speed - reduction requirements in a single unit, while the first - stage reducer is suitable for applications with relatively moderate speed - reduction needs. Constructed from high - quality materials, they exhibit excellent durability and resistance to wear, ensuring long - term reliable performance. Their compact design saves space, making them ideal for installations with limited room. These reducers are widely used in various industries such as machinery manufacturing, automation, and material handling, where precise speed control and reliable power transmission are crucial for efficient operation.

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