The Studica Robotics Light Weight 6mm D-Shaft Hub (2 pack) are used with 6mm D shafts. They have a 5mm set screw for tight clamping and seven M3 tapped mounting holes.

The Studica Robotics enhanced D-shaft wheel hub kit is ideal for use with the Omni and Mecanum wheels for a strong axle hold.

The Studica Robotics 6mm D-shaft collar clamp (2-piece) has a 6mm D-hole and dimensions of 20mm x 8mm.

The Studica Robotics 3mm pattern spacer (10 pack) is designed for use with your Robotics builds and design.

The Studica Robotics 6mm D-Shaft Face Bearing Block can be mounted on any channel and bracket allowing for a 6mm ID through hole for 6mm shafts (axles). The block has a permanently installed Standard Sealed Bearing and has 8 x M3 tapped through holes for easy mounting.

Made from aluminum and anodized in blue, the Studica Robotics 42mm Hinge with Bearings connects to the Studica structure hole pattern such as the channel, plates, and beams. The holes are 3.2mm diameter to use with the M3 screws. 

The Studica Robotics 6mm D-shaft collar clamp cay be used with the 6mm D-Shape Shaft to secure wheels in their position.

The Studica Robotics Small Thrust Ball Bearing is used for vertical and axial loads to withstand heavy loads. These ball bearings have track grooves on the upper and lower track boards to reduce friction. Use these with structure for any hole where an axial load will be applied.