200吨船用尾轴密封,后轴承一船采用4～5只U形橡胶密封圈,叠套在尾轴上进行密封;前轴承则采用黄油迫件进行密封。这样的密封方法容易造成密封部位发热,转动套严重磨损起坑。为此,我们在后轴承上每两只U形胶圈之间,增加1只润滑隔离挡环(图1),在装配润滑隔离挡环时,挡环内槽及密封内应填满润滑脂,这样既可以避免多重胶圈大面积与转动 200 tons of marine shaft seal, the rear bearing a boat with 4 to 5 U-shaped rubber ring, stacked on the tail shaft seal; the front bearing is sealed with butter forced. This method of sealing can easily lead to heat seal, rotating sleeve serious wear pits. To this end, we in the rear bearing between each two U-shaped apron, adding a lubrication isolation ring (Figure 1), the lubrication ring in the assembly, the retaining ring groove and seal should be filled with grease, This can avoid multiple apron large area and rotation