What is the function of the X-Trail differential?
2 Answers
The function of the X-Trail differential is to meet the requirement of different rotational speeds for the two wheels. The automotive differential enables the left and right (or front and rear) drive wheels to rotate at different speeds. Below are the maintenance methods for the differential: 1. Clean the differential parts and inspect them for wear, replacing excessively worn parts promptly; 2. Check the coaxiality between the outer machined surface of the bearing seat ring and the bearing seat hole, which should be within 0.05mm; 3. Check the coaxiality between the outer machined surface of the bearing seat ring and the oil seal, which should be within 0.05mm; 4. Check the coaxiality between the threads on the bearing seat ring and the housing hole, which should be within 0.27mm, and ensure it is perpendicular to the pinion shaft hole. Additionally, check the perpendicularity from the center line of the pinion shaft hole at 254mm, which should be within 0.08mm.
I've been driving the X-Trail for several years and have gradually come to appreciate the importance of the differential. Simply put, it's like a smart assistant that allows the left and right wheels to freely adjust their speeds when turning. The inner wheel turns slower while the outer one turns faster, preventing the car from skidding or causing tire wear. Especially when taking high-speed turns, the differential's role is very noticeable—the car remains extremely stable without any wobbling. I've also encountered slippery roads during rainy days, where the wheels maintained strong traction, reducing the risk of skidding. On long drives, it's worry-free, and the tires last much longer. The X-Trail's design is reliable and durable, with almost no malfunctions, enhancing overall driving comfort and safety.
