Makeblock Rectilinear Motion Robot Pack Contains four kinds of Makeblock components mainly used to build linear motion mechanisms. For example attach a nylon pulley to Makeblock beams to give your robot a smooth linear motion. Contains:

• 4 pieces: Threaded Shaft 4x39mm
• 4 pieces: Shaft Collar 4mm
• 6 pieces: Nylon Lock Nut 4mm
• 4 pieces: Nylon Pulley
• 6 pieces: Headless Set Screw M3x5
• 8 pieces: MicroBearing 4x8x3