The 6mm ID Round Flanged Bearing fits any of the channel and flat brackets with the common hole pattern having a center hole of 14mm. The inside diameter will fit any of the D-Shaft axles.
The Studica Robotics 6mm Hex-Shaft Flanged Bearing fits any of the channel and flat brackets with the common hole pattern having a center hole of 14mm. The inside diameter will fit any of the 6mm Hex-Shaft axles.