BEARING DEVICE FOR SUPPORTING FRONT DRIVING SHAFT OF WHEEL LOADER

摘要

PURPOSE: A bearing device for supporting a front driving shaft of a wheel loader is provided to improve endurance of the front driving shaft by preventing a dust seal from being deformed when injecting grease and preventing the bearing from being affected by vibration derived from misalignment of the driving shaft. CONSTITUTION: A front driving shaft section includes a first front driving shaft(11) connected to a front axle and a second front driving shaft for connecting a rear end of the first front driving shaft(11) to an output shaft of a transmission. The second front driving shaft is supported on a vehicle body by means of a center bearing(20). The second front driving shaft has a bearing seat section(13) having a diameter smaller than an outer diameter of the second front driving shaft. A dust seal seat section(14) is provided at both sides of the bearing seat section(13). The center bearing(20) includes a ball bearing section(21) inserted into the bearing seat section(13) of the driving shaft.