Although these wheels with a 5/8" bore (bearing bore, axle size) represent really excellent value for money, I had to go with 5/8 x 7 Buy /.16 steel bushings separately to reduce to my McLane application for a 7/16 axis trimmer.. I do get a little annoyed that this seller can't run short runs from time to time by using 7/16 bore bearings pressed into wheels, in addition to other axle sizes (bearings. The seller is missing out on this market segment, which includes several edger manufacturers including McLane and Power Trim. Workaround.)