NAKS 24V 250W High Torque PMDC Gear Reduction Electric Bicycle Motor 300 RPM 9-Tooth Sprocket

• Motor Type: Permanent Magnet DC (PMDC) Gear Reduction Motor
• Voltage Rating: 24 Volt DC
• Power Output: 250 Watt
• Speed After Reduction: 300 RPM
• Rated Current Draw: 12.2 Amps
• Internal Gear Ratio: 1:9.78
• Continuous Torque Constant: 9 N.m (90 kg-cm)
• Stall Torque Rating: 45 N.m (550 kg-cm)
• Drive Sprocket Profile: 9-Tooth 1/8" Bicycle Chain Compatible

Features

• High-Torque Internal Gearbox: Engineered with a specialized 1:9.78 gear reduction ratio to deliver a powerful 9 N.m of continuous tractive force.
• Efficient PMDC Design: Permanent Magnet DC motor technology ensures optimal electrical-to-mechanical energy translation with lower power drain metrics.
• Pre-Installed 9-Tooth Sprocket: Comes fitted with a robust 9-tooth drive sprocket perfectly matched to interface with a standard 1/8" bicycle chain.
• Heavy-Duty Structural Housing: Constructed using a rugged aluminum alloy gearbox housing and steel motor casing to withstand continuous operational stress and vibrations.
• Superior Incline Trailing: High low-end torque architecture makes it an exceptional power solution for steep hill climbing and cargo hauling.
• Simple Two-Wire Connectivity: Outfitted with robust positive (red) and negative (black) insulated lead wires for straightforward integration into 24V controllers.

Applications

• DIY Electric Bicycle Building: Upgrading standard mechanical road, hybrid, or mountain bikes into high-torque electric commuter models.
• Custom EV Prototype Construction: Serving as the primary drive powertrain for school engineering models, kids' e-scooters, and electric drift trikes.
• Commercial Delivery Cycles: Powering heavy local cargo, courier, and grocery distribution cycles that regularly handle high payload weights.
• Specialty Mobility Transits: Integrating into custom low-speed industrial carts, small agricultural transport frames, and elder care utility vehicles.

Usage

• Position the motor securely onto a heavy-duty frame-mounted steel or iron installation plate (not included).
• Fasten the motor casing bolts firmly to ensure perfect alignment with your rear wheel axle sprocket.
• Loop a standard 1/8" bicycle chain over the pre-installed 9-tooth motor sprocket and your rear wheel's freewheel cluster.
• Route the insulated positive and negative power wires carefully along the chassis frame away from active moving parts.
• Connect the motor lead terminals into the designated motor output ports of a matching 24V 250W 20A electric vehicle controller block.