Multi-functional Surface

- a bearing sleeve

The RAP machine tool can process multi-functional surfaces. The example shown is a bearing sleeve made of the new Uddeholm Vancron 40 that is a high-hardness and wear-resistant PM-tool steel, and used for a dynamic (moveable) tool system. 

The inner diameter surface is RAP polished to a 50/50% mix of a super-finished surface with 20 nano-meter roughness, and 500 nano-meter deep lubrication pockets. The spacing of the pockets is 0.3 mm. This surface mutually satisfies the need of a low friction and sufficient lubrication in order to prevent cold welding.

The polishing of such multi-functional surfaces would be very difficult if not impossible to obtain by means of traditional and manual polishing effort.