Double Shaft DC Motor RS-775 42mm High Torque 250mNm Free Customization Shaft

Guang Dong Lihua Mechatronics Co., Ltd. (Lihua Motor) presents the RS-775SM Double Shaft DC Motor, a precision-engineered 42mm brushed DC motor designed to deliver exceptional torque output and unparalleled mechanical flexibility through its dual-output shaft configuration and free-customization shaft length policy. Built on over 22 years of motor manufacturing expertise and backed by IATF 16949 automotive-grade quality certification, the RS-775SM is the definitive drive solution for OEMs and system integrators requiring high-performance DC motors with adaptable shaft geometry. Whether deployed in cordless power tools, industrial automation systems, robotics platforms, or dual-drive conveyor mechanisms, this motor consistently delivers reliable power with minimal acoustic noise and extended service life.

• Double Shaft Dual-Output Design: Power transmission available from both ends of the motor body, enabling simultaneous dual-load driving or encoder/sensor feedback integration on the secondary shaft end without additional gearing or coupling hardware.
• Free-Customization Shaft Length: Customers specify exact shaft dimensions to match their mechanical assembly requirements, eliminating the need for adapters, spacers, or costly mechanical redesigns. This customization extends to shaft diameter (typically 5 mm) and end-treatment options including flat, knurled, or keyway profiles.
• High Torque Output up to 250 mNm: The RS-775SM high-torque variant delivers 250 mNm at 12V with 15A load current and 5,000 RPM load speed, making it suitable for demanding applications such as electric winches, heavy-duty power tools, and industrial actuators.
• Wide Voltage Compatibility (6V-24V DC): The motor platform supports operation at 6V, 12V, and 24V DC, with speed variants ranging from 6,000 RPM to 15,000 RPM across the voltage spectrum, providing design flexibility for battery-powered portable tools as well as fixed-installation industrial equipment.
• Ball Bearing Construction: Premium ball bearing support on both shaft ends significantly reduces rotational friction, extends operational lifespan to 500-1,000 hours under rated load conditions, and improves radial load-handling capability compared to bushing-type alternatives.
• Copper Commutator with 5-Group Winding: The rear-mounted copper commutator and five-group winding configuration optimize electromagnetic efficiency, enhance thermal stability during continuous duty cycles, and reduce electrical noise for smoother motor operation.
• Compact 42mm Form Factor: With a body diameter of just 42 mm and a total length of approximately 66 mm, the RS-775SM fits into space-constrained designs without compromising on power density or torque output.

The RS-775SM Double Shaft DC Motor excels across a diverse range of industrial and consumer-grade applications. Its dual-output shaft configuration is particularly advantageous in dual-drive conveyor systems, where a single motor powers two synchronized belt drives simultaneously. In robotics and motion control systems, the secondary shaft end accommodates rotary encoders or hall-effect sensors for precise closed-loop position and speed feedback. Cordless power tool manufacturers benefit from the motor's high power density in a compact 42mm form factor, while electric winch and heavy machinery integrators rely on the 250 mNm torque variant for demanding high-load operations. Additional applications include portable cutting and drilling equipment, automated guided vehicles (AGVs), small spindle drives for CNC machines, and DIY automation projects where mechanical flexibility and robust performance are paramount.

Every RS-775SM motor undergoes 100% end-of-line inspection at Lihua Motor's IATF 16949-certified production facility in Dongguan, China, before being individually packed in anti-static ESD bags and placed into standard export-grade cartons with custom-fit foam padding to prevent transit damage. Custom packaging options — including branded retail boxes, blister packs, and palletized bulk shipping — are available upon request. Lihua Motor backs every motor with a 24-month warranty against manufacturing defects and provides 48-hour emergency replacement service for critical production-line downtime scenarios. All motors are manufactured on 20+ automated production lines with a monthly capacity exceeding 500,000 units, ensuring rapid scalability from prototype sampling (delivered within 7 working days) to full-scale mass production.