Grinding device for linear motion bearing housing roller path

The utility model provides a grinding device for a linear motion bearing housing roller path. The grinding device comprises a grinding rod, a pin shaft, an oilstone chuck, an oilstone and a gasket; the grinding rod and the oilstone chuck are in hinged connection through the pin shaft; the oilstone is fixed in the oilstone chuck through a screw; the gasket is arranged on one side, close to the head of the screw, of the oilstone on the screw in a sleeving manner. According to the grinding device, the pressure of the oilstone can be artificially controlled according to the amount of feed, ultra precision grinding of the bearing housing roller path can be finished in once clamping, and thus the precision of the roller path can be ensured reliably.