The center bearing is easily adjusted by inserting the shaft into the bearing and turning into position. This is a good design to ensure the shaft doesn't bind if the "feet" aren't on a perfectly flat surface when tightening. The inside diameter of the hole is exactly 5/8 inch. A centerless ground 5/8" precision O1 tool steel boring bar might not easily slip through the hole, but could likely be driven through. So I used a 5/8" coated rod from a hardware store to make it easier to slide.
Enhanced Performance Sydien SCS12UU Bearing Bushing Diameter for Precision Machinery
4 Review
π§ High-Quality TIMKEN 6203 2RSC3 6203 2RS Bearing - Size: 17X40X12mm
4 Review
Electric Guitar Strings Ernie Ball 2221 Regular Slinky - (10-46)
5 Review
FKG 99502HNR Bearing Width Pre Lubricated
5 Review