Differential case makes abnormal noise and leaks oil?
When freight electric tricycles are driving on complex roads, traditional differential cases often expose three major pain points: abnormal noise is harsh when driving at high speed, oil leakage is frequent on bumpy roads, and uneven power distribution between the left and right wheels causes abnormal wear of the Electric Tricycle Rear Axle, which indirectly affects the power output efficiency of the Electric Tricycle Motor and even forces the Electric Tricycle Controller to shut down due to overload protection. Many masters complained: "When pulling goods over speed bumps, the differential case makes a 'clicking' sound that makes people panic, and the gear oil has to be replenished every month."
The motorcycle gearbox-level differential case we developed specifically for electric tricycles solves industry problems with locomotive-level technology! It uses automotive-grade spiral bevel gears with an engagement accuracy of IT7 and a noise reduction of 40% compared to traditional differential cases; the double-lip skeleton oil seal + pressure relief valve design forms a double leak-proof barrier, and it is measured that there is no oil leakage after continuous bumps of 500 kilometers; the power distribution is optimized through the planetary gear set, so that the torque difference between the left and right wheels is controlled within 5%, and the rear axle wear rate is reduced by 60%. The actual test of Shandong Logistics Fleet shows that the climbing power of the vehicle is improved by 30% after the replacement, and the gear oil replacement cycle is extended from 2 months to 6 months.
Three hard-core features
① Locomotive-grade silent gears: The spiral bevel gears adopt carburizing and quenching technology, the tooth surface hardness reaches HRC58-62, and the noise is <75dB when running at high speed;
② Double seal and leak-proof system: Fluorine rubber oil seal + aluminum alloy box is precisely matched, suitable for -30℃~120℃ wide temperature environment;
③ Intelligent limited slip design: Built-in friction plate limited slip device, wet road surface can automatically balance the power of the left and right wheels to avoid slipping and drifting.
Golden rules for maintenance
1. Three oil checks: check the oil level (standard scale 1/2~2/3) every week when the car is cold, observe the oil quality every month (replace it if it turns black), and replace the hyperbolic gear oil every 5,000 kilometers;
2. Abnormal sound diagnosis: when a "buzzing" sound occurs during driving, immediately check the gear meshing clearance (standard value 0.15~0.3mm);
3. Load balancing: the cargo center of gravity offset is ≤10cm to avoid excessive load on one side of the gear.
