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.
Excel AutoSave is a tool that automatically saves a new document that you've just created, but haven't saved yet. It helps you not to lose important data in case of a computer crash or power failure. Excel AutoRecover helps you retrieve unsaved files after an accidental closure or crash.. Check the Always create backup box in the General Options dialog and click OK. Now you can rename your file and choose the desired location to save it. Excel will create a backup copy of the document in the same folder.