Now available from CNC Router Parts! In conjunction with our needle thrust bearings, these half inch shaft collars are used to complete a thrust bearing on a screw-driven axis. Their clamping design is non-marring on your ACME screw. With two of these and two sets of thrust bearings and washers, you can run your screw straight through a bearing block, and avoid the shaft coupler and drill rod. Image coming soon.

$2.25