Described herein are methods for forming two or more dicarba bridges, as well as new compounds containing dicarba bridges. The method includes calculating and comparing a long-term error rate and a short-term error sample. Furthermore, a rotatably mounted drive element, which is configured, in particular, as a swash plate, and at least one pump element which interacts with the drive element to deliver oil or the like are arranged in the housing. The transmission element is located in the circular space while the cutout is exposed to the exterior through the reduced open end of the circular space. The rack belt can be inserted into and pulled out from the insertion hole in a same direction as an axis of rotation of the toy top mounting part.