United Motion Inc. – A Chicago-Based Motion Solution Provider
Focus on R&D and customization of electric motors. Provide comprehensive one-stop services from design, manufacturing, supply chain management, to after-sales support. Grow with clients and drive the success to a new height!
PMDC Motor – ZD Series with Inline Gear Box
Our ZD series PMDC Motor (Brushed DC Motor) is engineered for reliable performance and smooth power transmission, with the option to integrate an inline gearbox for applications requiring compact size, high efficiency, and precise speed control. The combination of our ZD series PMDC Motor and inline gearboxes offers balanced performance with excellent torque output, straightforward installation, and versatile mounting configurations.
The ZD series PMDC motor delivers consistent speed regulation, strong starting torque, and efficient operation, while the inline gearbox provides high transmission efficiency and stable torque output along the same axis as the motor shaft. This coaxial design ensures minimal space usage and optimal mechanical alignment, resulting in quiet, vibration-free operation.
Constructed with high-quality steel gears and aluminum alloy housing, the inline gearbox ensures durability, low noise, and excellent thermal performance. Together, the ZD series PMDC motor and inline gearbox form a compact, efficient, and cost-effective drive system, ideal for industrial automation, conveyors, material handling, and equipment requiring precise linear or rotary motion control.
United Motion Inc. is not only the authorized distributor in North America, but also a sister company of Greensky Power Company.
We have a manufacturing facility in China which has been operated for over 15 years, with a new facility in Thailand under construction.

Customer Service
United Motion Inc.’s motion solution apply in diverse areas all around the world.
Our sales and engineering support teams are ready to assist you with any questions, including quotation, application support, and product configuration.
Please submit your requirements through our Custom Service Form to ensure a faster response. Or you can reach us at info@unitedmotioninc.com for general inquiries.
Tell Us About Your Application Requirements
United Motion Inc welcomes inquiries and challenges. If you find our standard products cannot meet your need, please feel free to contact us for customization. Our professional engineering and service team will quickly review your need and propose a solution if we can make it.
We look forward to communicating and collaborating with you!

