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.
Previously Saved File. Open the document that you were working with that you need to recover. Click File, Info and under Versions, click the version (When I Closed Without Saving).. Click Restore in the business bar at the top of the file to update the file to the last saved version of the document.ew File. Open the document that you were working with that you need to recover. Click File, Recent and Recover Unsaved Documents located at the bottom right of the dialog box. Select the file you want to recover from the Saved Drafts folder that appears. Click Open..