SKF 7018 CD/P4ATBTB Single Row Angular-Contact Ball Bearing, High Precision Ball Bearings Set, (Three Pcs) - 90 mm ID, 140 mm OD, 24 mm Width Shaft Alignment Tool The Whittet-Higgins SC-42A is a

The Whittet-Higgins SC-42A is a two-piece (split) shaft collar machined to inch dimensions

The Rapidaptor ensures rapid bit change without any extra tools

For external hexagon screws

9 in Material Steel

SKF 7018 CD/P4ATBTB Single Row Angular-Contact Ball Bearing, High Precision Ball Bearings Set, (Three Pcs) - 90 mm ID, 140 mm OD, 24 mm Width Shaft Alignment Tool The Whittet-Higgins SC-42A is aHigh Precision Angular Contact Ball Bearing SKF high precision angular contact ball bearings are designed for machine tool spindles and other high precision applications. They feature optimized internal geometry for high speed capability and precision. Available as single bearings and as universally matchable sets for various arrangement configurations. Manufactured to super precision tolerances.