rear axle assy introduce

The rear axle refers to a bridge that connects two rear wheels. The rear axle of a rear wheel drive vehicle is called the drive axle, while the rear axle of a non rear wheel drive vehicle is called the support axle. The rear suspension assembly often appears in passenger cars, A component generally composed of springs, shock absorbers, connecting rods, etc., which serves to transmit and support the excitation between the tire and the vehicle body. It is generally divided into three types of independent suspensions (link type), semi independent suspensions (torsion beam type), and non independent suspensions (axle or axle type). The rear axle refers to a bridge that connects two rear wheels. The rear axle of a rear wheel drive vehicle is called the drive axle, and the rear axle of a non rear wheel drive vehicle is called the support axle, The rear suspension assembly refers to the independent suspension system used to support the rear body of a vehicle)

Installation method of rear axle assembly/front axle assembly

1. Unscrew the oil drain plug at the bottom of the axle housing and drain the lubricating oil from the axle housing; Remove the connecting bolts between the flange of the driving bevel gear and the transmission shaft; 2. Disassembly of the half shaft. Before disassembly, cover the front wheels with a wooden cover and release the parking brake. When disassembling, loosen and unscrew all half shaft fastening nuts and washers; Gently strike the center of the rear end of the half shaft 2 to 3 times with a copper hammer to separate the half shaft flange surface from the hub connection surface. Then, pull the half shaft flange by hand to extract the half shaft. Note that when the spline part of the half shaft is about to pass through the oil seal, hold the half shaft rod with your hand and slowly rotate the half shaft to move it out in parallel, so as not to damage the half shaft oil seal and prevent it from falling and injuring people; 3. Disassembly of the main reducer assembly: Remove the rear brake hose and tee joint; Using a small car, support the gearbox housing, remove the 12 bolts connecting the gearbox housing to the rear axle, and remove the gearbox assembly from the axle housing; Disconnect the brake chamber hose and the connection between the pipelines, remove the brake chamber, and remove the adjustment arm assembly; 4. Remove the wheel hub adjustment nut locking plate fastening screw, take out the locking plate, and use a special sleeve to remove the wheel hub adjustment nut; Slightly rotate the wheel hub and brake drum assembly, use a puller to pull the wheel hub outward, and lightly tap on the brake drum to loosen the inner ring of the outer bearing. After the inner ring of the outer bearing is loose, remove the wheel hub and brake drum assembly. However, at this time, be careful not to damage or injure people by falling, and also protect the inner ring of the outer bearing from falling; 5. Use a puller to remove the inner ring assembly of the inner bearing and the oil seal seat ring assembly; Use a return spring disassembly tool to remove the brake return spring and remove the camshaft; Use a wrench to remove the fastening bolts of the brake base plate, remove the brake base plate with shoes and dust cover assembly; Remove the brake chamber bracket and the axle housing assembly; 6. Finally, the reverse order of installation and disassembly is sufficient

BMW 328Li introduce

The BMW 328Li has no significant configuration differences in the front part of the car. The hood extends in a wedge-shaped shape from the upper edge of the headlights to the lower edge of the front windshield, and the multi edged design makes the new hood look more dynamic. The enlarged front grille is a prominent feature of this generation of 3 Series, and the new headlight group closely connected to the grille is more aggressive. The chrome plated decorative strip in the fog light area, which is unique to the new 3 Series, is firmly covered by black tape, But the overall lines are clearly exposed. The side of the BMW 328Li can be clearly seen to be different from the overseas version of the 3 Series. The size of the rear door has a more obvious increase, and the line at the back of the side skirt tends to be more straight. This also means that it will be an authentic domestic new 3 Series sedan, which will provide more abundant rear seating space for Chinese consumers. The BMW 328Li will be equipped with a brand new 4-cylinder turbocharged engine, The maximum power is 240 horsepower, matched with a brand new 8-speed automatic transmission. The first six gears of the new transmission adopt a 1:1 gear ratio, and the last two gears are super ratio gears, which can help reduce fuel consumption during high-speed cruising