High precision cross roller bearing processing problems and how to use?

High precision cross roller bearing with the development of science and industry is a necessary part of machinery equipment.The cross - roller bearing processing is to be designed.So what are the design tips for micro machining accuracy?The biggest cause of bearing damage may be severe friction, fatigue and pressure melting.Therefore, the design of friction in bearing machining precision should pay attention to a lot of techniques.The superfinishing sequence of cross roller bearings can be divided into three steps: cutting, semi-cutting and finishing.FRB BEARINGS will detailed introduce the process of crossed roller bearings.

Bearing cutting

Convex peak on the surface of the rough stone surface and raceway contact, as a result of the contact area is relatively small, the force per unit area is opposite bigger, stone artifacts by bearing first "cutting" effect, make the part on the surface of the stone grinding grain fall off and broken, show some new sharp abrasive grain and the edge.Peak at the same time, the convex surface of the bearing parts are fast cutting, cutting and cutting through the effect of removing the miniature bearing the workpiece and grinding metamorphic layer on the surface of the convex peak, through the cutting process, can help to remove most of the metal allowance.

Half cutting of bearing

As the processing continues, the surface of the bearing workpiece is gradually smoothed out.At this time, the surface contact area of grindstone and workpiece increases, the pressure on the unit area decreases, the cutting depth decreases, and the cutting ability decreases.At the same time, the pores of the grindstone surface are blocked, and the grindstone is in a semi-cutting state.This stage is known as the half-cutting stage of the bearing finishing process, and the surface cutting marks of the bearing workpiece during the half-cutting stage are shallowly and have a dark luster.

The whole stage of light

The finishing stage is the last working procedure of the bearing's superfinishing.As workpiece surface is smooth, millstone and further increase the contact area on the surface of the workpiece, cutting, cutting, stone and is gradually lubricating oil film bearing surface segregation, the pressure on unit area is small, the cutting effect is reduced, the last stop cutting automatically.This stage is called the photorefractive stage.There is no cutting mark on the surface of the workpiece during the whole optical stage.