Shaft by shaft tube, telescopic universal joints and components. Shaft shaft (DriveShaft) connection or assembly of the parts, but can be moved or rotated round object parts, generally using light and torsional resistance of the alloy tubing. On the front-engine rear-wheel drive car is transmitted to the rotation of the transmission shaft final drive, which can be several sections connected by a universal joint. It is a high speed, small rotary member is supported, so its dynamic balance is critical. Generally should be carried out in the factory driveshaft balancing test, and on the balancing machine adjusted. Traditional telescopic telescopic shaft structure is splined sleeve and flange welded forks, the spline shaft is welded to the drive shaft tube. The new shaft has changed the traditional structure for automobile drive shafts, splined sleeve and the shaft tube welded into one, drive shaft spline shaft will be integrally formed with the flange fork. And into a large rectangular tooth spline pressure angle involute spline teeth short, so as to enhance the strength and ease of extrusion, to meet the needs of high torque conditions. In the telescoping tube and splined shaft tooth surface, the overall dip coated with a layer of nylon material, not only increases the wear resistance and self-lubricating, and reduce the impact load on the vehicle for damage to the drive shaft drive shaft manufacturers, improved buffering capacity. Such shaft spline shaft outer flange adds a tubular shaft seal protector for automobile manufacturers, the protective sleeve ends set up two polyurethane rubber seals, telescopic kit form a completely sealed factory space, so stretching between the external spline shaft without erosion of river sand for automobile drive shafts, not only dust and rust. Therefore, when assembled in a disposable applicator spline shaft with grease kit, to fully meet the requirements, does not require lubrication glib installed, reducing the maintenance content. [] _ For automobile drive shafts for automobile drive shafts _ Hejian Hejian provided by Prosperous Prosperous Auto Parts Auto Parts. Welcome to consult Auto Parts Co., Ltd. Hebei shengxing (www.hjshengxing.com), be sure to specify when contact is through the "Business Alliance Member" see, thank you! Contact: Zhang Zhanbing