Planar double-enveloping toroid worm gear drive is an excellent way to transmit torque and movement through two axes that are not parallel.

• 平面二次包络环面蜗杆副作为一种优良的传动形式，具有多齿同时啮合、瞬时双线接触、啮合中易形成弹流动压润滑等优点，是完全符合机械传动领域发展趋势的产品。