Rather than buying small wheels individually, you can purchase them here as a package with a storage rack included at a discounted rate.
Smaller Kit Includes 6 Wheels (as of 10/07/20) and Storage Rack:
1/4” (use caution by running slowly with J weight belts only)
3/8” (use caution by running slowly with J weight belts only)
1/2” (use caution by running slowly with J weight belts only)
3/4”
1”
1.25”
Larger Kit includes 3 Wheels and Storage Rack
1.5”
1.75”
2”
(image of Larger kit has not been updated to reflect design changes. The current storage racks hold the wheels from just inside the bearings to lock them in better than the previous design)