B1 蜗杆轴伸上，由于安装齿轮.链轮或带轮所产生的径向力，其***大许用力与起升力和型号有关。在1/2处所许用的***大径向力和扭矩见图B1和表B1。
B1 As gear, chain wheel and pulley are mounted on worm shaft end, it makes radial force F1. The maximum allowadle force is depend on lifting force and model. The maximum allowable radial force and trosion at 1/2 position are shown in Fig B1 and B2.
