4mm ID x 8mm OD Spacers
The 4mm ID fits over a 4mm shaft, M4 threaded rod, or M4 screw. The 8mm OD allows an 8mm bearing to ride on the spacer, and the wide footprint provides greater stability than other options.
The 4mm ID fits over a 4mm shaft, M4 threaded rod, or M4 screw. The 8mm OD allows an 8mm bearing to ride on the spacer, and the wide footprint provides greater stability than other options.