What is backlash in gear terms? The term backlash is defined as the amount by which a tooth space exceeds the thickness of a gear tooth engaged in mesh. It is necessary to ensure the smooth rotation of meshed gears. The following extract is from the KHK Gear Catalogue* which details the types of backlashes, the relationships between backlashes and the fundamental equations, as well as easy-to-understand illustrations of how it all works.
Don't panic and discover below how to recover an unsaved file. 1  Go to FILE -> Open. 2  Choose Recent Workbooks. 3  Scroll down and click on the Recover Unsaved Workbooks button at the bottom of the list. Note.  When the Open dialog box pops up, just select the necessary file and click Open.
Click the Microsoft Office Button, and then click Open. In the Open dialog box, type the path and file mask below into the address bar at the top of the window to display a list of the automatically saved files: %temp%\ppt*.tmp. Click the name of the file that you want to recover, and then click Open.userprofile%\Application Data\Microsoft\Excel\*.xlsb. Click the name of the file that you want to recover, and then click Open. If you are not sure which file you need to open, do the following: The automatically saved files are named by using the following convention: Original file name (version Version number).