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在很多轴承机构中,为了防止漏油,通常采用橡皮油封。橡皮油封中装有一种拉力弹簧圈,以保证橡皮油封良好的密封性。拉力弹簧圈形状如图1所示。这种弹簧圈一般用直径为0.4～0.8公厘的钢丝制造。弹簧的外径是2～5公厘。弹簧的一端是圆柱形,另一端是带有5～7圈的锥形部分,利用锥形部分拧入圆柱形一端内自行锁紧,这样就连接成拉力弹簧圈。弹簧圈的直径大小,根据橡皮油封大小而定。
In many bearing institutions, in order to prevent oil leakage, usually adopt rubber oil seal. Elastane seal is equipped with a tension spring, to ensure a good seal rubber seal. Tensile coil shape shown in Figure 1. This coil is generally made of 0.4-0.8 mm diameter wire. The outer diameter of the spring is 2 to 5 mm. One end of the spring is cylindrical and the other end is a tapered portion with 5 to 7 turns. The tapered portion is screwed into the cylindrical end to lock itself, thus connecting the tension spring. The diameter of the coil depends on the size of the rubber seal.