English
English French German Portuguese Spanish Russian Japanese Korean Arabic Turkish Italian Indonesian Polish Hindi Dutch Malay Persian Thai Vietnamese
Leave Your Message
XW/BW Series Cycloidal Gearbox – Cyclo Pinwheel Reducer
Cycloidal Gearbox
Cycloidal Gearbox (1).jpg

XW/BW Series Cycloidal Gearbox – Cyclo Pinwheel Reducer

The XW/BW Series Cycloidal Gearbox is a high-precision, high-torque reduction drive based on the cycloidal pinwheel (planocentric) principle—a unique mechanical design that delivers exceptional shock resistance, zero backlash, and ultra-high reduction ratios in a compact form factor.

Unlike conventional planetary or worm gearboxes, the cycloidal reducer uses an eccentric cam input shaft that drives one or two cycloidal discs with external lobes. These lobes roll inside a stationary ring of needle pins (pinwheel), creating smooth, continuous meshing without sliding friction. The motion is then transferred via precision pins to the output flange or shaft.

    Contact us
    product Information

    Technical Specifications

    Near-zero backlash (<1 arcmin)
    High torsional stiffness
    Overload capacity up to 500% of rated torque
    Smooth, vibration-free operation even under rapid start-stop cycles
    Available in single-stage (XW) and two-stage (BW) configurations, the series covers reduction ratios from 9:1 to 87:1 (XW) and 121:1 to 7,569:1 (BW)—making it ideal for applications demanding extreme precision, reliability, and compactness.
    Key advantages include unmatched shock load tolerance, maintenance-free operation, and suitability for frequent reversing—critical in modern automation and heavy industry.
    Cycloidal Gearbox (2)

    Product Advantages

    Ultra-Low Backlash & High Precision

    Backlash as low as <1 arcmin ensures accurate positioning—ideal for robotic arms, CNC turntables, and indexing tables.

    Exceptional Shock & Overload Resistance

    Simultaneous engagement of 60–70% of cycloidal lobes distributes load evenly, enabling 5–7x peak torque tolerance without damage.

    Compact Design with High Reduction Ratios

    Achieves reduction ratios up to 7,569:1 in a single housing—far exceeding planetary or harmonic drives of similar size.

    Zero Maintenance with Lifetime Lubrication

    Pre-filled with high-performance synthetic grease and sealed with double-lip FKM seals—no oil changes required during service life.

    High Torsional Rigidity & Smooth Operation

    Minimal elastic deformation under load ensures consistent performance in dynamic applications like packaging and printing.

    Bidirectional Rotation & Frequent Reversing Capability

    No wear-prone sliding surfaces—perfect for servo-driven systems requiring rapid direction changes (e.g., delta robots, pick-and-place units).

    product Information

    How to Select the Right Model & When to Use a Cycloidal Reducer

    When to Choose a Cycloidal Gearbox?
    Opt for the XW/BW series when your application requires:
    High shock loads (e.g., crushers, presses, conveyors)
    Frequent start-stop or reversing motion (e.g., robotic joints, palletizers)
    Extreme reduction ratios in limited space
    Backlash-sensitive precision without the cost of harmonic drives
    Reliability in harsh environments (dust, moisture, high temperature)
    ！Not ideal for ultra-high-speed input (>2,000 rpm) or applications requiring >98% efficiency.
    Cycloidal Gearbox (5)
    product Information

    Selection Guidelines

    Cycloidal Gearbox (7)
    To choose the correct model, provide:
    Required output torque (include service factor for shock loads)
    Motor power & speed (AC, servo, or stepper)
    Desired reduction ratio
    Mounting configuration (flange type, output shaft/hollow bore)
    Operating duty cycle (continuous, intermittent, reversing frequency)
    Environmental conditions (IP rating, temperature, corrosion risk)
    Our engineers offer free sizing support, torque verification, and 3D CAD models (STEP/IGES) for seamless integration.

    Applications

    Its blend of ruggedness and precision makes it a preferred alternative to harmonic drives in cost-sensitive, high-durability applications.

    The XW/BW Cycloidal Gearbox is trusted across diverse industries:

    • Industrial Robotics: Articulated arms, SCARA, delta robots

    • Automation & Packaging: Rotary indexers, filling machines, capping systems

    • Machine Tools: CNC rotary tables, tool changers, grinding spindles

    • Material Handling: Palletizing robots, AGVs, conveyor diverters

    • Mining & Construction: Vibrating feeders, screen drives, concrete mixers

    • Printing & Textiles: Register control rollers, winding/unwinding stations

    • Food & Pharma: Washdown-compatible indexing for cleanrooms

    product Information

    About Our Gearbox Manufacturing Facility

    Cycloidal Gearbox (8)
    We are a leading Chinese manufacturer of precision gearboxes with over 18 years of specialization in cycloidal, planetary, and helical drive technologies. Our 40,000 m² ISO 9001:2015 & ISO 14001-certified factory in Zhejiang is equipped with world-class production and testing systems:
    Precision Machining: Japanese MAZAK and German EMAG CNC centers for housing and components
    Heat Treatment: Controlled-atmosphere carburizing lines for gears and cycloidal discs
    Grinding & Finishing: Gleason and Reishauer machines for micron-level accuracy
    Quality Control: ZEISS CMMs, gear inspection analyzers (Klingelnberg), and dynamic load testers
    100% Load Testing: Every gearbox undergoes full-torque run-in and noise/vibration analysis before shipment

    About Our Factory

    All XW/BW series reducers comply with CE, RoHS, and international safety standards. We serve OEMs and system integrators in Europe, North America, Southeast Asia, and the Middle East, with a strong reputation for durability, customization, and responsive technical support.
    Committed to advancing motion control technology, we combine German-inspired engineering with competitive Asian manufacturing to deliver gearboxes that perform where others fail.
    Cycloidal Gearbox (10)
    01
    2-copies3-17

    LET'S DISCUSS YOUR PROJECT

    For inquiries about our products or pricelist, please leave your email to us and we will be in touch within 24 hours.