The drawing above shows
only the elements for the combined thrust/radial bearing, which should
be mounted near the motor end of the extrusion. The other
bearing block only supports the screw radially, and is not shown in the
drawing. However, the only component required for this
bearing block is an extra 1/2" radial ball bearing, and this extra
bearing is reflected in the quantities of parts listed below.
1.
Shaft Coupler. MSC 87856480
Qty 1
Required if using part 6, below.
2. 1/2" ACME Screw -- any pitch. McMaster Carr. 98940A901, 98940A629, 98940A623, 98940A627. Qty 1
3. 1/2" Thrust Washer. MSC 03381076 Enco 891-4802 Qty 4
4. 1/2" Needle Thrust Bearing. MSC 03380904 Enco 891-4795 Qty 2
5. CNCRouterParts Bearing Block, complete with radial bearing. Online Store Qty 2
6. 1/2" Drill Rod (optional, but helpful to maximize useable screw length). You cut to length. MSC 06010326 Enco 409-0029 Qty 1
Note: If using high pitch ACME, the needle bearings can slide into the threads without this. It's highly recommended.
7. Lovejoy Connector (3 parts). MSC 35407022 (1/2"), 35407006 (1/4") OR 35407014 (3/8") depending on your motor, 35407097 (Spider). Also available from Enco. Qty 1 of each.
You will need a 1/2" hub for your screw / drill rod, a spider, and another hub sized to your motor.
8. CNCRouterParts ACME anti-backlash nut. Make sure to match pitch with screw pitch. Online Store Qty 1
9. 1/2" Shaft Collar. MSC 87856779 Qty 1
10. CNCRouterParts NEMA 23 motor mount. Online Store Qty 1
11. 8020 1530 series aluminum extrusion. See links section for suppliers.
Fasteners (available from MSC, McMaster Carr, or Enco):
Required if using part 6, below.
2. 1/2" ACME Screw -- any pitch. McMaster Carr. 98940A901, 98940A629, 98940A623, 98940A627. Qty 1
3. 1/2" Thrust Washer. MSC 03381076 Enco 891-4802 Qty 4
4. 1/2" Needle Thrust Bearing. MSC 03380904 Enco 891-4795 Qty 2
5. CNCRouterParts Bearing Block, complete with radial bearing. Online Store Qty 2
6. 1/2" Drill Rod (optional, but helpful to maximize useable screw length). You cut to length. MSC 06010326 Enco 409-0029 Qty 1
Note: If using high pitch ACME, the needle bearings can slide into the threads without this. It's highly recommended.
7. Lovejoy Connector (3 parts). MSC 35407022 (1/2"), 35407006 (1/4") OR 35407014 (3/8") depending on your motor, 35407097 (Spider). Also available from Enco. Qty 1 of each.
You will need a 1/2" hub for your screw / drill rod, a spider, and another hub sized to your motor.
8. CNCRouterParts ACME anti-backlash nut. Make sure to match pitch with screw pitch. Online Store Qty 1
9. 1/2" Shaft Collar. MSC 87856779 Qty 1
10. CNCRouterParts NEMA 23 motor mount. Online Store Qty 1
11. 8020 1530 series aluminum extrusion. See links section for suppliers.
Fasteners (available from MSC, McMaster Carr, or Enco):
- 10-32 x 0.75" screws to connect motor to motor mount.
- 1/4-20 x 0.5" screws to connect bearing mount cover to bearing mount.
- 5/16-18 x 2" screws to connect bearing mount to extrusion.