Axle designation: A numerical expression which describes the total number of wheels followed by the number of driving wheels. For instance, 4″ x 4″ vehicle is the one with four wheels and all four of them on both axles are driving. Related posts: Personnel Management Operative Functions Administrative Role of PM Competency HR Management Role Change Personnel Policies Personnel Procedures Appealed Policies Implied Policies Specific Policies Personnel records Research Pure research Personnel research Attitude or Opinion Survey Turnover Secondary research Applied research Personnel audit Read more articles Previous PostAxle casing Next PostBacklash