摘要：Comparison of various drives demonstrated that two stage cycloidal drives are having high efficiency of 92.7%, which was found advantageous [1], thought their efficiency is dependent on the type of bearings [2]. Cycloidal speed reducers perform higher reduction ratio, the higher accuracy, the easier adjustment of the transmission ratio and the smaller workspace than any other [3]. Nevertheless, there are numerous proposals on further improvement of the cycloidal transmissions, such as fabrication of cylindrical tooth profiles [4], tooth modifications [5, 6] or non-circular gears [7]. A modification method was proposed to reduce the lost motion [8], and a new concept of two-stage drive with one cycloid disc for each stage was designed [9].
