HUMSER E-Rickshaw 71 Teeth Differential Gear Grari

Product Details

This is a 71-tooth main gear (often called "Grari") designed for use in electric rickshaw (e-rickshaw) differential or gearbox systems. It's part of the gear assembly that transfers torque from the motor through the differential to the rear wheels, helping distribute power efficiently so each wheel can rotate at appropriate speeds, especially when turning. Teeth Count: 71 teeth Application: E-rickshaw differential / main gearbox gear Compatibility: Standard e-rickshaw drive systems (typically 48 V / 60 V BLDC motors) Material: Heavy-duty gear steel (heat-treated or alloy steel for reliability) — similar e-rickshaw gears are made of wear-resistant alloy steel to withstand load and reduce wear. Function: Works with the differential's smaller pinion gear (often 18 T or similar) to create a gear ratio around 1:10, which provides torque multiplication for rear-wheel drive and smooth acceleration. Use Cases: • Replacement of worn gears in e-rickshaw differentials • New assembly of e-rickshaw drivetrain • Maintenance/repair of electric tricycle or cargo vehicle gear systems ⚙️ How the 71T Gear Works in an E-Rickshaw In an e-rickshaw differential: A smaller pinion gear (e.g., 18T) meshes with this larger 71T Grari gear — this creates a typical reduction ratio (e.g., ~1:4 or higher depending on design) that increases torque to the wheels at the cost of rotational speed. This arrangement helps the vehicle start from a stop, climb inclines, and carry heavy loads more effectively. High-quality gears like this are designed to handle continuous operation with minimal noise and long service life when properly lubricated and installed. ⚠️ Installation & Tips ✅ Always ensure the gear aligns correctly with the mate gear (pinion) in the differential. ✅ Use proper gear oil or grease in the differential assembly to reduce wear and noise. ✅ Check for compatibility with your vehicle's axle length and differential housing before replacement.