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.
Select the .slk file that you saved, and then click Open. Note To see the .slk file, you may need to click All Files or SYLK Files in the Files of type list. On the File tab, click Save As. In the Save as type box, click Excel Workbook.n the Open dialog box, select the corrupted workbook that you want to open. Click the arrow next to the Open button, and then click Open and Repair. Do one of the following: To recover as much of the workbook data as possible, click Repair.