304270 - Straight Motor Mount Bearing Block Bracket
for 1/2 diameter, acme lead screw.

 CNC machined from 6061 aluminum.  The hole fits 1/2 ID flanged bearings.
Has 4 qty, 8-32 tapped holes for standoffs to mount a NEMA23 tepper motor.

Mounting hole are Tapped 1/4-20 and spaced 1.25 inch apart.  
Blocks are 2 1/4 wide by 2 1/2 high by 1/2 thick

Below Bracket shown assembled to a NEMA 23 Stepper motor with 5/32 hex standoffs.
Other items shown below are sold in kits and separately, and are not included in this listing.

Below drawing showing the mechanical layout of the Motor Mount, Bearing Block Brackets ( 2 per assembly) within a leadscrew assembly.