Search results
Results from the WOW.Com Content Network
Worm-and-gear sets are a simple and compact way to achieve a high torque, low speed gear ratio. For example, helical gears are normally limited to gear ratios of less than 10:1 while worm-and-gear sets vary from 10:1 to 500:1. [45] A disadvantage is the potential for considerable sliding action, leading to low efficiency. [46]
Prior to his disqualification, he had been in fourth place with a time of 9.80 seconds, the fastest fourth place in history. On 29 May 2016, former World Champion Kim Collins improved his personal record by running 9.93 +1.9 in Bottrop as a 40-year-old. He improved his own standing as the oldest man to break the 10-second barrier, the first ...