Swivel castor wheels with 608 (skateboard) bearings

These castors are self-steering, providing smooth roll in any direction, and use common 608 skateboard bearings for radial and axial load.

For 1 full castor you need:
- 1x 3d printed wheel
- 1x 3d printed castor body
- 2x 3d printed bearing flanges.
- 4x 608 series (skateboard) bearings.
- 2x washers either side of the wheel bearings (2mm of thickness either side).
- 1x m8 axle bolt/rod (approx 60mm) for the wheel.
- 1x m8 threaded rod for the swivel axis, length to suit your applicati