Makeblock Flange Copper Sleeve (4 x 8 x 3mm) has inner diameter of 4mm, outer diameter of 8mm, length of 3mm, and flange diameter of 10mm. Flange copper sleeve is brass-made and has features of high accuracy, smoothness, wear resistance, rust resistance. It can be a replacement of bearing in DIY projects. For example, in Makeblock Timing Pulley 62T, Timing Pulley 90T,Plastic Timing Pulley 62T, Plastic Timing Pulley 90T, Plastic Timing Pulley 62T without Steps and Plastic Timing Pulley 90T without Steps. It can be used as a high-precision moving parts to ensure the stable motion of the above items. Also, it can be used together with copper washer (4* 10*1mm).
 
Features:
Compatible with Timing Pulley and Shaft D4mm in Makeblock;
Ensure a stable motion of the moving parts and reach a high-precision requirement;
Made of brass;
Diameters: 4mm (inside), 8mm (outside);
Sold in pack of 10.
 
Part List:
10 x Flange Copper Sleeve 4*8*3mm