A method for transmitting power by traction wherein the traction fluid is a borate ester having the general formula: ##STR1## where R.sub.1 is a saturated or unsaturated mono-cyclic group with from 1 to 5 side groups having from 1 to 20 carbon atoms, and R.sub.2 and R.sub.3 are the same or different cyclic groups as defined for R.sub.1 or alkyl groups with from 1 to 20 carbon atoms. A traction drive mechanism utilizing such a borate ester as the traction fluid.
一种通过牵引传输动力的方法,其中牵引液体是具有通式:##STR1##的
硼酸酯,其中R.sub.1是具有1至5个侧基的饱和或不饱和单环族基,每个侧基含有1至20个碳原子,而R.sub.2和R.sub.3是与R.sub.1定义相同或不同的环族基或具有1至20个碳原子的烷基。利用这种
硼酸酯作为牵引液体的牵引驱动机构。